Mitochondrial Renewal

Mitochondrial dysfunction is one of the universally accepted Hallmarks of Aging. In the López-Otín 2023 update (Cell), mitochondrial decline sits at the metabolic core — the cause of the energy collapse, oxidative load, and impaired stress signaling that the downstream hallmarks ride on. Mitochondria turn the food you eat into ATP, the chemical currency every cell spends to do every job. They also generate the reactive oxygen species (ROS) that damage DNA, proteins, and the mitochondria themselves. By age 70, both the quantity and quality of mitochondria in human tissue are measurably worse than at 30 — fewer in number, more mutated, slower at switching from rest to demand, and producing more ROS per ATP made.

Mitochondrial renewal is the practice of supporting the four interlocking processes that keep this network young: biogenesis (building new mitochondria), mitophagy (clearing damaged ones before they leak), energy production (running the electron transport chain efficiently), and antioxidant defense (mopping up the ROS the chain produces). Each pillar has well-characterized human evidence behind it. This collection assembles the most rigorously studied compound for each, dosed at the level used in the published clinical trials, third-party tested for identity and contaminants, and manufactured in cGMP-compliant facilities.

The 60-second answer

  • Why this collection exists. Mitochondrial decline is the metabolic hub of aging — every other Hallmark of Aging gets worse when ATP supply, ROS handling, and quality control fall behind. Renewing this network is one of the highest-leverage interventions in the longevity literature.
  • The four pillars. Biogenesis (PQQ, NAD+ precursors), mitophagy (Urolithin A, Spermidine), energy production (CoQ10, NAD+ precursors, Creatine, Taurine), antioxidant defense (ALA, Glycine + NAC for glutathione, CaAKG cofactor for the TCA cycle).
  • Trial-validated doses. Urolithin A 500 mg/day (Andreux 2019, Singh 2022, Liu 2022); PQQ 20 mg/day (Harris 2013, Hwang 2020); CoQ10 100–400 mg/day (Mortensen 2014 Q-SYMBIO); NMN/NR at the dose ranges used in NADPARK (Brakedal 2022) and Trammell 2016; ALA 600 mg/day (NATHAN1 Ziegler 2011); Glycine 1.5 g/day in the GlyNAC pair (Sekhar 2021, Kumar 2022); Taurine 1 g/day (Singh 2023 Science); Creatine 1–5 g/day (Forbes 2022); Spermidine 10 mg/day (Schwarz 2022, Eisenberg 2018); CaAKG 1 g/day (Asadi Shahmirzadi 2020, Demidenko 2021).
  • Two-product entry stack (highest ROI). Urolithin A 500 mg morning + an NAD+ precursor (NMN or NR) morning. Mitophagy clears the broken mitochondria; NAD+ keeps the surviving ones running. Run for 8–12 weeks before adding anything.
  • Full mitochondrial protocol. Morning fasted — Urolithin A + NMN/NR + ALA + CoQ10 (with a fat source). With breakfast — PQQ + B-complex (built into NAD+ 5-in-1 if used). Pre-training — Creatine loaded across the day; Taurine. Evening — Glycine + Spermidine an hour before bed (autophagy windows align with the overnight fast). CaAKG 1 g/day on a daily or alternate-day cadence.
  • Time-to-effect. Subjective stamina shifts at 2–4 weeks. Endurance and recovery shifts at 6–12 weeks (this is when published trials start to read out). Mitophagy gene-expression rewriting in muscle was measurable at 4 weeks in Andreux 2019; biological-age clock changes (CaAKG, GlyNAC) typically read out at 4–6 months.
  • Quality. ISO/IEC 17025 third-party testing, cGMP 21 CFR Part 111 manufacturing with named partners (Selerb on the NAD+ 5-in-1; Mitopure-spec Urolithin A; Niagen-class NR; AlzChem Creapure-spec creatine; trans-pterostilbene/trans-resveratrol on the NAD+ Liposomal); per-batch CoA on request via support@truehealthprotocol.health. See /pages/quality for the full operational spec.
  • Who this is for. Adults 35+ noticing the early energy drift; adults 50+ addressing mitochondrial decline directly; athletes and serious trainees who want the recovery and endurance side; statin users who want to restore CoQ10. Not a treatment for any disease. Mitochondrial myopathies, primary CoQ10 deficiency, and inherited mitochondrial disorders require physician-led care.

On this page

Mitochondrial decline — five mechanisms behind the energy collapse

The phrase "mitochondrial dysfunction" sounds singular but actually wraps five distinct biological problems that compound on each other across decades. Understanding which one a given compound addresses is the difference between a stack that works and a stack that wastes money on overlapping mechanisms. The five mechanisms below come from the López-Otín 2013 and 2023 Hallmarks-of-Aging reviews, the Bratic and Larsson 2013 J Clin Invest mitochondrial-aging review, and the more recent Sun, Youle, and Finkel 2016 Mol Cell mitophagy synthesis.

1. Mitochondrial DNA mutation accumulation

Mitochondria carry their own circular genome (mtDNA, 16,569 base pairs in humans, encoding 37 genes). Because mtDNA sits next to the ROS-generating electron transport chain and lacks the protective histones that nuclear DNA has, it accumulates point mutations and large deletions at roughly 10× the rate of nuclear DNA. By age 70, the average heteroplasmy load (fraction of mutated mtDNA copies per cell) reaches 30–60% in muscle, brain, and heart tissue. Above the cell-by-cell biochemical threshold (~60–80% mutant load for most respiratory-chain complexes), the cell flips into a hypometabolic state. This is why some 80-year-old skeletal-muscle fibers show "ragged-red" cytochrome-c-oxidase-negative phenotypes that don't exist at 30. The renewal lever here is mitophagy — selectively clearing the cells and mitochondria with the highest mutant loads before they expand clonally.

2. Endogenous CoQ10 decline and electron-transport-chain inefficiency

Coenzyme Q10 (ubiquinone) shuttles electrons from Complexes I and II to Complex III. The body synthesizes CoQ10 endogenously through the mevalonate pathway — the same pathway statins block at HMG-CoA reductase. Endogenous CoQ10 production peaks in the early 20s and falls roughly 50% by age 80; the decline is steeper in heart and skeletal muscle than in liver. Statins amplify the decline by an additional 30–50% within weeks of starting therapy (Marcoff and Thompson 2007 JACC). When CoQ10 falls below saturation, electrons "leak" off Complex I and react with oxygen to form superoxide — adding ROS load on top of the energy shortfall. The renewal lever here is direct CoQ10 supplementation (the Mortensen 2014 Q-SYMBIO heart-failure trial used 100 mg three times daily; the high-bioavailability tier is 200–400 mg/day with food).

3. NAD+ pool depletion and SIRT3 starvation

NAD+ (nicotinamide adenine dinucleotide) is the coenzyme that pulls electrons through Complex I and feeds the seven sirtuin deacetylases — including SIRT3, the mitochondrial sirtuin that switches on the mitochondrial unfolded protein response (UPRmt) and tunes the activity of dozens of mitochondrial enzymes. Whole-body NAD+ levels fall roughly 50% by age 50 (Massudi 2012 PLOS One; Clement 2019 Cell Metab); the steepest decline is in skin, brain, and skeletal muscle. The decline is driven by a combination of falling synthesis (NAMPT decline) and rising consumption (CD38 increase with inflammaging — Camacho-Pereira 2016 Cell Metab). When NAD+ falls below saturation for SIRT3, the mitochondrial proteome accumulates hyperacetylation marks and loses metabolic flexibility. The renewal lever is NAD+ precursor supplementation — NMN (one enzymatic step from NAD+) or NR (two steps, but with the largest human safety dataset and the patented Niagen-class form).

4. Failure of mitophagy quality control

Mitophagy is the selective autophagy of damaged mitochondria. The PINK1/Parkin pathway tags mitochondria with collapsed membrane potential for ubiquitination, which recruits autophagy receptors (NDP52, OPTN, NIX, BNIP3) that build a phagophore around the failing organelle and degrade it in the lysosome. Mitophagy declines with age in two ways — the tagging signal weakens (PINK1 stability falls), and the lysosomal degradation step slows (lysosomal pH drifts upward, cathepsin activity drops). The result is accumulation of damaged-but-not-cleared mitochondria, which leak ROS and cytochrome c and act as sterile-inflammation signals (the cGAS/STING mtDNA-leak axis). The renewal lever is Urolithin A, the only oral compound with clinical-trial-grade direct mitophagy data in humans (Andreux 2019 Nat Metab: 500 mg/day for 4 weeks rewrote the muscle mitochondrial gene-expression profile of older adults toward a younger pattern), and Spermidine, which drives general autophagy with mitophagy cross-talk (Eisenberg 2009 Nat Cell Biol; Eisenberg 2016 Nat Med; Schwarz 2022 PMID 34762807).

5. Glutathione depletion and antioxidant-network collapse

Glutathione (GSH) is the master cellular antioxidant — a tripeptide of glutamate, cysteine, and glycine that exists at millimolar concentrations inside healthy cells. Mitochondrial GSH is the primary defense against the superoxide and hydrogen peroxide the electron transport chain inevitably generates. GSH levels fall roughly 30% by age 70, with the decline driven primarily by glycine and cysteine substrate shortage rather than enzyme failure (Sekhar 2011 Am J Clin Nutr; Sekhar 2021 Clin Transl Med). When GSH falls, the cell can't recycle oxidized vitamin C, vitamin E, or CoQ10, and the entire antioxidant network downshifts in parallel. The renewal lever is GlyNAC (glycine + N-acetylcysteine in roughly a 1.6:1 ratio at ~100 mg/kg body weight, per the Sekhar protocol), backed by ALA as the universal antioxidant network regenerator.

The four pillars of mitochondrial renewal

Pillar 1 — Biogenesis (build new mitochondria)

The master regulator of mitochondrial biogenesis is PGC-1α (peroxisome proliferator-activated receptor gamma coactivator 1-alpha), a transcriptional coactivator that turns on the entire mitochondrial program — Tfam (mtDNA transcription factor), NRF1/NRF2 (nuclear respiratory factors), and the dozens of nuclear-encoded mitochondrial proteins that get imported across the outer membrane. PGC-1α is upregulated by exercise, cold exposure, fasting, and a small number of compounds. PQQ is the most reliable oral PGC-1α activator with parallel CREB and Nrf2 effects (Chowanadisai 2010 J Biol Chem established the mechanism in cell models; Harris 2013 J Nutr Biochem and Hwang 2020 confirmed mitochondrial biomarker shifts in humans at 20 mg/day). NAD+ precursors also upregulate PGC-1α indirectly through SIRT1 deacetylation — the SIRT1-PGC-1α axis is one of the most-cited longevity mechanisms in the Sinclair lab corpus.

Pillar 2 — Mitophagy (clear damaged mitochondria)

The PINK1/Parkin pathway tags failing mitochondria for selective autophagy. Urolithin A is the only oral compound with clinical-trial-grade direct mitophagy data in humans (Andreux 2019 Nat Metab; Singh 2022 Cell Reports Medicine 2.5–3.0 month muscle endurance and aerobic-capacity gains; Liu 2022 JAMA Network Open ATP-production gains in older adults). Mechanism: Urolithin A is a postbiotic gut metabolite produced from ellagitannins (in pomegranate, walnuts, raspberries) — but only ~30–40% of adults harbor the gut microbiome (specifically Gordonibacter) to make it (Tomás-Barberán 2017 Mol Nutr Food Res). Direct supplementation bypasses the microbiome conversion problem. Spermidine drives general autophagy that cross-talks with mitophagy (Eisenberg 2009 Nat Cell Biol; Eisenberg 2016 Nat Med; Schwarz 2022 in older adults). The mechanisms are complementary, not redundant — Urolithin A is selective for mitochondria, Spermidine is global; the autophagy programs they activate share late-stage machinery (lysosomal fusion) but trigger from different upstream signals.

Pillar 3 — Energy production (run the electron transport chain)

NAD+ is the coenzyme that pulls electrons through Complex I; CoQ10 shuttles them between Complexes I/II and III; ATP itself is buffered by phosphocreatine in tissues with high peak-demand bursts (skeletal muscle, brain, heart). Restore the substrate with NMN or NR, run the chain with CoQ10 400mg, buffer ATP with Creatine, and stabilize the inner mitochondrial membrane with Taurine (Schaffer 2018; Singh 2023 Science). For users who want a single-bottle stack, NAD+ 5-in-1 Complete bundles NMN + CoQ10 + B-complex + antioxidants + skin actives, and Liposomal NAD+ Ultimate 1000 mg wraps a 10-active stack in phospholipid liposomes.

Pillar 4 — Antioxidant defense (neutralize ROS)

Alpha-Lipoic Acid (ALA) is the universal antioxidant — both fat- and water-soluble — that recycles glutathione, vitamin C, and CoQ10 itself, and serves as a cofactor for the pyruvate dehydrogenase and α-ketoglutarate dehydrogenase complexes inside the mitochondrion. The 600 mg dose is the NATHAN1 (Ziegler 2011 Diabetes Care) and SYDNEY 2 trial level. Glycine + NAC (the GlyNAC stack — Sekhar 2021 Clin Transl Med; Kumar 2022 Clin Transl Med) restores depleted intracellular glutathione, the cell's master detoxifier; the Sekhar pediatric-protocol-derived dose is roughly 100 mg/kg of glycine + 100 mg/kg of NAC (a 1:1 weight ratio that maps to ~1.6:1 molar at the relevant amino-acid weights). Calcium Alpha-Ketoglutarate is a TCA-cycle intermediate and required cofactor for the TET DNA demethylases and JmjC histone demethylases — the enzymes that "reset" epigenetic age (Asadi Shahmirzadi 2020 Cell Metab; Demidenko 2021 Aging showed an ~8-year drop in DNA-methylation biological age in humans on a CaAKG-anchored regimen).

Per-product trial evidence

Urolithin A 500 mg — Mitophagy Activator

Urolithin A 500 mg is a postbiotic gut metabolite produced from ellagitannins in pomegranate, walnuts, and raspberries — but only ~30–40% of adults harbor the Gordonibacter-class gut microbiome to make it endogenously (Tomás-Barberán 2017). Direct supplementation bypasses the conversion problem. Andreux 2019 (Nat Metab) at 500 mg/day for 4 weeks rewrote the muscle mitochondrial gene-expression profile toward a younger pattern. Singh 2022 (Cell Rep Med) at 500 and 1000 mg/day for 4 months produced muscle endurance and aerobic capacity gains. Liu 2022 (JAMA Netw Open) at 1000 mg/day showed muscle strength gains. Only oral mitophagy compound with clinical-trial-grade readouts in humans.

PQQ 20 mg — Mitochondrial Biogenesis Activator

PQQ 20 mg (pyrroloquinoline quinone) is the most reliable oral PGC-1α activator. Chowanadisai 2010 (J Biol Chem) established the mechanism — PQQ acts upstream of PGC-1α through CREB phosphorylation. Harris 2013 and Hwang 2020 confirmed mitochondrial biomarker shifts in humans at 20 mg/day. Many retail PQQ products under-dose at 5–10 mg, well below the trial threshold. Pairs naturally with CoQ10 (PQQ builds the factory; CoQ10 stocks the production line).

CoQ10 400 mg — Electron Transport Cofactor

CoQ10 400 mg is ubiquinone, the electron shuttle between Complexes I/II and III. Endogenous synthesis declines steadily after the 20s; statins block synthesis at HMG-CoA reductase (Marcoff 2007). Mortensen 2014 Q-SYMBIO heart-failure trial used 100 mg three times daily for 2 years and showed a 43% reduction in major adverse cardiovascular events. Also the most-studied oocyte-quality cofactor in fertility (Bentov 2014, Xu 2018, Florou 2020 meta-analysis — see /collections/fertility). Take with a fat source — bioavailability roughly triples with food.

NMN — NAD+ Precursor (one step from NAD+)

Pure NMN 500 mg (β-nicotinamide mononucleotide) is one enzymatic step from NAD+ via NMNAT1/2/3. Yoshino 2021 (Science) at 250 mg/day for 10 weeks improved insulin sensitivity in postmenopausal women with prediabetes. Yamaguchi 2022 confirmed safety to 1250 mg/day. Igarashi 2022 (npj Aging) showed walking-speed and grip-strength gains in older men. Form matters — β-NMN, not α-NMN, is the bioactive anomer. See /collections/nmn and /collections/nad-family.

NR Hard Capsules — Niagen-class NAD+ Precursor

NR Hard Capsules use the patented Niagen-class nicotinamide riboside chloride with the largest published human safety and PK dataset of any NAD+ precursor. Trammell 2016 (Nat Commun) characterized the human PK; Conze 2019 confirmed safety; Martens 2018 reduced systolic blood pressure ~9 mmHg in adults with elevated baseline; Brakedal 2022 (NADPARK) showed brain NAD+ elevation on PET imaging in Parkinson's. Bundled with B-vitamin cofactors to support the methylation pool.

Liquid NAD+ — Drink-Format NR with B-Complex

Liquid NAD+ delivers NR in single-serve berry stick packs with B-vitamin cofactors. Same Niagen-class NR substrate as the hard capsules — the form is the difference, not the active. Suits users who don't tolerate capsules, travel, or pair their NAD+ precursor with morning coffee or a smoothie.

Liposomal NAD+ Ultimate 1000 mg — 10-Active Phospholipid Stack

Liposomal NAD+ Ultimate 1000 mg wraps 10 actives in phospholipid liposomes for lymphatic-bypass absorption: NMN + NR + trans-resveratrol + B-complex + CoQ10 + PQQ + quercetin + supportive antioxidants. For users who want one-bottle simplicity at the high tier, this replaces three or four separate bottles.

NAD+ 5-in-1 Complete — Selerb Co-Formulation

NAD+ 5-in-1 Complete is co-formulated with our manufacturing partner Selerb and bundles NMN + CoQ10 + B-complex + antioxidants + skin actives (HA, vitamin C, vitamin E). Itemized labeling — every active is listed with its full mg dose; no proprietary blends. See the manufacturing-partner detail at /pages/quality.

Alpha-Lipoic Acid 600 mg — Universal Antioxidant

Alpha-Lipoic Acid 600 mg is both fat- and water-soluble — works in mitochondrial membranes and cytosol simultaneously. ALA recycles oxidized glutathione, vitamin C, and CoQ10 (Packer 1995); chelates heavy metals (Hagen 1999); cofactor for pyruvate and α-ketoglutarate dehydrogenase. The 600 mg dose is the NATHAN1 (Ziegler 2011) and SYDNEY 2 trial level. Take on an empty stomach 30 minutes before food for the AUC peak.

Glycine 1500 mg — GlyNAC Glutathione Precursor

Glycine 1500 mg is half of the GlyNAC pair. Sekhar 2011 established that older adults' GSH deficit is driven primarily by glycine and cysteine shortage. Sekhar 2021 and Kumar 2022 (Clin Transl Med) showed GlyNAC restored intracellular glutathione, mitochondrial function, insulin sensitivity, walking speed, and multiple aging biomarkers in a 16-week trial in older adults. Glycine alone also extends slow-wave sleep (Yamadera 2007), when mitochondrial repair peaks.

Taurine 1000 mg — Foundational Sulfur Amino Acid

Taurine 1000 mg. Singh 2023 (Science) showed taurine levels decline ~80% with age across mice, monkeys, and humans, and that supplementation extended healthspan in multiple species. Taurine stabilizes the inner mitochondrial membrane, conjugates tRNAs that read mtDNA (Suzuki 2002), and modulates cardiac calcium handling (Schaffer 2018). 1 g/day is the consensus floor; cardiovascular trials run to 3–6 g/day.

Creatine Monohydrate 1000 mg — ATP Buffer (Creapure-spec)

Creatine Monohydrate 1000 mg uses AlzChem Creapure-spec ≥99.95%-pure micronized form. Phosphocreatine recharges ATP from ADP within seconds. Sarcopenia prevention is now a primary geriatric use case (Forbes 2022 Nutrients review of 19 RCTs); brain phosphocreatine increase (Roschel 2021); working-memory buffering under sleep deprivation (McMorris 2007). Maintenance floor 1 g/day; full saturation 3–5 g/day.

Spermidine 10 mg — Autophagy Inducer (Wheat-Germ Extract)

Spermidine 10 mg from concentrated wheat germ extract. The Bruneck cohort (Eisenberg 2018) found higher dietary spermidine intake predicted lower all-cause mortality across 20 years. Mechanism: spermidine triggers autophagy by inhibiting acetyltransferases (EP300) that suppress autophagy genes (Pietrocola 2014). Cardioprotective in mouse aging (Eisenberg 2016 Nat Med) and improved diastolic function in human RCTs (Schwarz 2022). 10 mg supplementation puts most adults in the Bruneck protective tertile.

Calcium Alpha-Ketoglutarate 1000 mg — Epigenetic Cofactor

Calcium Alpha-Ketoglutarate 1000 mg is α-ketoglutarate, a TCA-cycle intermediate and required cofactor for TET DNA demethylases, JmjC histone demethylases, and prolyl-hydroxylase enzymes. Asadi Shahmirzadi 2020 (Cell Metab) extended median lifespan and compressed morbidity in mice. Demidenko 2021 (Aging, TruDiagnostic-validated) showed ~8-year drop in DNA-methylation biological age in humans on a CaAKG-anchored regimen across 7 months. 1 g/day is the trial dose; calcium-bound form supplies ~200 mg elemental calcium per gram.

Three protocol tiers — entry, daily, full

Tier 1 — Entry (the two highest-ROI products)

If you're starting from zero and want the largest signal-per-dollar, the two-product entry stack is Urolithin A 500 mg + an NAD+ precursor (NMN or NR), both taken in the morning with food. Mitophagy clears the broken mitochondria; NAD+ keeps the surviving ones running. Run for 8–12 weeks before adding anything else. This pairing covers two of the four pillars (mitophagy and energy production) at trial-validated doses. Expected monthly cost: roughly the price of a mid-tier coffee subscription.

Tier 2 — Daily (foundational five-product daily mitochondrial protocol)

The daily tier adds CoQ10 (run the chain), ALA (universal antioxidant), and Glycine (glutathione substrate, slow-wave sleep). This is the reference protocol for adults 45+ who want to address the four pillars at maintenance dose without the full-stack complexity. Total: 5 products, 2 dosing windows (morning + evening).

Tier 3 — Full mitochondrial protocol (all 4 pillars at trial-grade dose)

The full protocol covers biogenesis (PQQ), mitophagy (Urolithin A + Spermidine), energy production (NMN/NR + CoQ10 + Creatine + Taurine), antioxidant defense (ALA + Glycine + GlyNAC if added separately), and the epigenetic-cofactor layer (CaAKG). This is the maximalist daily stack used by adults who treat longevity as a personal-health priority. 9–10 products, 3 dosing windows.

One-bottle alternative: Liposomal NAD+ Ultimate 1000 mg consolidates NMN + NR + CoQ10 + PQQ + trans-resveratrol + B-complex + quercetin + supportive antioxidants into a single liposomal carrier — useful if you want simplicity at the higher tier and don't want to manage 4–5 separate bottles. The liposomal form also bypasses some first-pass clearance for the fat-soluble actives.

Stacking guide — within and across collections

Mitochondrial × NAD+ Family / NMN. Heavy overlap — NAD+ is the substrate for SIRT3 (mitochondrial sirtuin) and the coenzyme that pulls electrons through Complex I. NMN, NR, Liquid NAD+, Liposomal NAD+ Ultimate, and NAD+ 5-in-1 sit in both collections.

Mitochondrial × Senolytics. Mitophagy clears damaged mitochondria from inside still-functional cells; senolytics clear senescent cells (past the point where mitophagy can rescue them) from tissue. Different scales of the same quality-control problem. Many users pair daily mitochondrial stack with monthly or quarterly senolytic pulses (fisetin, quercetin, apigenin).

Mitochondrial × Cardiovascular Longevity. Mitochondria are densest in heart muscle, so cardiac aging tracks mitochondrial aging closely. CoQ10 is the most-cited single supplement in the cardiac-mitochondrial literature (Q-SYMBIO). Taurine and omega-3 reinforce the cardiac-mitochondrial axis.

Mitochondrial × Metabolic. The AMPK/sirtuin axis sits between mitochondrial biogenesis and metabolic flexibility. ALA is both insulin sensitizer and mitochondrial cofactor; berberine activates AMPK; NMN/NR feed SIRT1 → PGC-1α → biogenesis.

Mitochondrial × Antioxidants. The antioxidant-defense pillar overlaps with the broader antioxidant-network program — vitamin C, vitamin E, glutathione, NAC, astaxanthin, polyphenol bioflavonoids.

Mitochondrial × Foundational Health. Vitamin D3, vitamin K2 (MK-7), magnesium glycinate, and TG-form omega-3 are the foundational layer underneath every more-specialized longevity program. A weak foundational floor caps mitochondrial-program efficiency.

Mitochondrial × Fertility. CoQ10, NAC, glutathione, ALA, and PQQ all appear in both literatures. The 60–90 day pre-conception window maps to spermatogenesis (74 days) and antral-follicle development (~85 days).

Mitochondrial × Brain & Cognitive Longevity. Brain is the most mitochondria-dense organ after heart muscle. Creatine increases brain phosphocreatine; CoQ10 and NMN cross the blood-brain barrier; PQQ has parallel CREB-mediated neurogenesis effects.

Week-by-week timeline — what to expect and when

Mitochondrial supplements operate on a longer arc than caffeine or stimulants — most of the published trial readouts hit between week 4 and month 6. Subjective shifts are usually felt earlier than the lab-measurable shifts; this is normal because some of the early effects are antioxidant-network restoration (ALA, glutathione) and substrate-replenishment (NAD+) rather than the slower biogenesis and mitophagy programs.

Weeks 1–2 — Tolerance and adherence window

Most users feel nothing dramatic in the first two weeks, which is the correct outcome. The point of weeks 1–2 is verifying tolerance — no GI upset (most likely from CoQ10 if taken without fat, or from ALA on an empty stomach in sensitive users), no flushing (rare with niacinamide, not relevant to NMN/NR), no allergic reactions, no sleep disruption (NMN is energizing for some users — take it in the morning rather than evening). If you're tolerating the stack at this point, the protocol is working as designed — the biology is queued, just not yet readable.

Weeks 3–4 — Antioxidant network and NAD+ early shifts

Glutathione restoration (GlyNAC) and NAD+ pool elevation (NMN/NR) typically read out subjectively at this stage as morning energy lift, mid-afternoon stamina, and slightly faster recovery from training. The Andreux 2019 mitophagy-gene-expression rewriting in muscle was measurable at 4 weeks, so the biological signal is real even if the subjective signal is mild. Some users notice sleep architecture shifts (more slow-wave sleep on the Glycine + Spermidine evening pair).

Weeks 5–8 — Mitochondrial biogenesis and endurance shifts

This is the window where the Andreux 2019, Singh 2022, and Liu 2022 endurance and aerobic-capacity readouts hit. Subjective: longer training tolerance, faster recovery between hard sessions, less mid-afternoon energy crash. The PGC-1α / NRF1 / Tfam axis takes weeks to translate into measurable new-mitochondria density — the biology is slower than the antioxidant-network adjustment.

Weeks 9–12 — Stable plateau and the assessment window

By week 12, the biological program has stabilized and the subjective signal is at its clearest. This is the natural assessment window — ask yourself: is mid-day energy better than the pre-stack baseline? Is recovery faster? Is sleep deeper? If yes, hold the protocol. If no, two diagnostic questions: (a) is the foundational micronutrient floor in place — vitamin D, magnesium, omega-3, sleep duration, protein floor? (b) is there a hidden upstream variable — undiagnosed thyroid, sleep apnea, B12 deficiency, alcohol load? Mitochondrial supplements work best on top of a foundational floor, not in place of one.

Months 4–6 — Biological-age clock readouts

The CaAKG and GlyNAC trials showed measurable epigenetic-age (Horvath, PhenoAge, GrimAge, DunedinPACE) shifts at 4–7 months. If you're tracking biological age via TruDiagnostic, Elysium, or similar, this is the readout window. Mitochondrial-quality biomarkers (acylcarnitine profile, PBMC NAD+ levels, citrate synthase activity in muscle biopsy) move on similar timelines.

Beyond month 6 — Maintenance vs. cycling

Most users hold the daily mitochondrial protocol indefinitely as a maintenance program — there's no published evidence of tolerance, downregulation, or diminishing returns in any of the trial extensions out to 12+ months. Some users cycle CaAKG (e.g., 3 months on, 1 month off) on first-principles grounds (epigenetic-cofactor saturation), though the published trial used continuous dosing without an off period. Urolithin A, NAD+ precursors, CoQ10, ALA, Glycine, Taurine, Creatine, PQQ, and Spermidine are all daily-continuous in the published literature.

Drug interactions and precautions

These compounds are food-grade nutrient cofactors at the doses shown in the cited human studies. The list below is operational — not exhaustive — and should not replace conversation with the prescribing clinician.

  • CoQ10 + warfarin. CoQ10 may reduce warfarin's anticoagulant effect at high doses. Talk to your prescriber and ask for an INR check 2–4 weeks after starting.
  • CoQ10 + statins. Beneficial pairing — statins block CoQ10 synthesis at HMG-CoA reductase (Marcoff 2007), so supplementation restores what the medication depletes (Mortensen 2014 Q-SYMBIO).
  • NAC + nitroglycerin. NAC potentiates nitroglycerin's vasodilation; avoid the combination unless coordinated with the prescribing cardiologist.
  • ALA + insulin or sulfonylureas. ALA improves insulin sensitivity, which can drop blood glucose in users on glucose-lowering medications. Check fasting glucose more frequently in the first 2–4 weeks.
  • ALA in users with seizure history. Case reports of seizures in patients with thiamine deficiency taking high-dose ALA. Discuss with neurologist before starting.
  • NMN/NR + chemotherapy. Discuss with the oncologist before initiating during active chemotherapy.
  • Spermidine + hydroxychloroquine/chloroquine. The autophagy-inhibitor pairing's net effect is uncertain. Discuss with prescribing rheumatologist.
  • Creatine + pre-existing kidney disease or nephrotoxic medication. Well-tolerated in healthy kidneys (Forbes 2022) but warrants creatinine and eGFR monitoring in CKD.
  • Pregnancy and lactation. Pause the full stack at conception and switch to the prenatal-vitamin floor + a fertility-clinic-approved CoQ10 dose (see /collections/fertility).
  • Children under 18. Not formulated for or studied in children. Doses on this page are for adults.

Who this collection is for — and who it isn't

The "early energy drift" cohort (35–50)

Adults 35–50 who notice the early energy drift — slower morning warm-up, longer recovery between workouts, less mid-afternoon stamina, "tired but wired" sleep, slightly slower bounce-back from a late night or a hard week. The biology is real (NAD+ is already ~30–40% off its 20-year-old level by 40, mitochondrial density in skeletal muscle is measurably lower), but the clinical thresholds for sarcopenia, cardiovascular disease, and metabolic syndrome haven't been crossed yet. This is the highest-leverage window for the entry-tier and daily-tier protocols.

The "address mitochondrial decline directly" cohort (50–70)

Adults 50–70 who want to address mitochondrial aging at its mechanism rather than symptom-by-symptom. NAD+ is now ~50% off the 20-year-old level; CoQ10 endogenous synthesis is at half-peak; glutathione is roughly 30% lower; SIRT3 substrate is starved. The full-stack protocol is the natural fit. Many users in this window are also on statins (CoQ10 restoration is well-documented) or pre-diabetic (ALA insulin-sensitization angle).

Athletes and serious trainees

The endurance, recovery, and sarcopenia angles are the relevant ones for serious trainees. Urolithin A's published trials on aerobic capacity (Andreux 2019, Singh 2022, Liu 2022) are the clearest endurance-specific signal in the catalog. Creatine for power output, lean-mass preservation, and sleep-deprivation cognitive buffering. CoQ10 for the cardiac-mitochondrial demand side. Taurine for inner-membrane stability and exercise-induced calcium handling. Glycine for slow-wave sleep restoration after training load.

Statin users

Statins block endogenous CoQ10 synthesis at HMG-CoA reductase (Marcoff and Thompson 2007). The CoQ10 restoration is well-supported in the cardiology literature; the Mortensen 2014 Q-SYMBIO heart-failure trial used 100 mg three times daily for 2 years with a 43% reduction in major adverse cardiovascular events. Most statin users tolerate the muscle side-effects better with CoQ10 supplementation, although the RCT evidence on statin-myalgia specifically is mixed (Banach 2015 meta-analysis showed modest benefit).

Pre-conception couples

CoQ10 (oocyte-quality cofactor — Bentov 2014, Xu 2018, Florou 2020), NAC (sperm membrane lipid-peroxidation defense — Ciftci 2009), glutathione (follicular-fluid antioxidant), and PQQ (mitochondrial-density ramp) all overlap with the fertility-collection program. The 60–90 day pre-conception window aligns with spermatogenesis (74 days) and antral follicular development (~85 days). See /collections/fertility for the reproductive-aging context.

Who this isn't for

Not a treatment for any disease. Mitochondrial myopathies (MELAS, MERRF, Leigh syndrome), primary CoQ10 deficiency, and other inherited mitochondrial disorders require physician-led care and often pharmacological doses far above what supplemental products provide. Active cancer patients should pause initiation until oncology coordination is in place. Active pregnancy and lactation — pause the stack and switch to the prenatal-vitamin floor (see /collections/fertility). Children and adolescents — not formulated for or studied in this group. Anyone with a serious chronic condition or on multiple prescription medications — coordinate with the prescribing clinician before adding more than one or two supplements at a time.

Quality standards — what every product on this page meets

Every product in this collection meets a five-test panel for third-party verification: HPLC/LC-MS/NMR identity confirmation; HPLC potency assay against label claim; ICP-MS heavy metals against California Proposition 65 limits (Pb≤0.5, Hg≤0.3–0.7, Cd≤4.1, iAs≤10 µg/day); USP <2021>/<2022> microbial limits including pathogen absence (Salmonella, E. coli, S. aureus); EU MRL pesticide screening + USP <467> residual solvents. Manufactured in cGMP-compliant facilities under 21 CFR Part 111. Per-batch CoA available on request via support@truehealthprotocol.health — supply the product name, the batch lot number printed on the bottle, the best-by date, and (optionally) your order number, and we return the original lab PDF plus a plain-English summary in one business day.

Named manufacturing partners and trial-grade raw materials referenced in this collection: Selerb co-formulation on NAD+ 5-in-1 Complete; Mitopure-spec Urolithin A reference on Urolithin A 500 mg; Niagen-class NR-Cl on NR Hard Capsules and Liquid NAD+; AlzChem Creapure-spec ≥99.95%-pure micronized creatine on Creatine 1000 mg; β-NMN pharma-grade on Pure NMN 500 mg; trans-resveratrol and trans-pterostilbene on Liposomal NAD+ Ultimate; EU wheat-germ–sourced spermidine on Spermidine 10 mg; fermentation-derived ubiquinone CoQ10 on CoQ10 400 mg. See /pages/quality for the full operational spec on the three-tier verification standard, the cGMP 21 CFR Part 111 nine-element checklist, the country-of-origin transparency table covering every active in the catalog, the bioavailable-form checklist (β-NMN vs α-NMN; trans-resveratrol vs cis; trans-astaxanthin vs synthetic; MK-7 vs MK-4; bisglycinate vs oxide; TG-form omega-3 vs ethyl ester; reduced-glutathione enteric-coated; ubiquinone vs ubiquinol), and the per-batch-CoA email-request flow.

How to measure mitochondrial improvement

Most trials don't have a single canonical biomarker. In practice, the subjective signal (energy, recovery, sleep, training tolerance) is the most actionable, and lab biomarkers are the slower confirmation.

Subjective trackers (free, weekly)

  • Morning energy 1–10, self-rated 30 minutes after waking, before caffeine.
  • Mid-afternoon stamina 1–10, self-rated at 2–4 PM. Most-reported subjective shift on the daily-tier protocol.
  • Recovery between training sessions — hours-to-feel-recovered or RPE at a fixed-load workout.
  • Sleep architecture — subjective wakefulness on rising; objective via Oura, WHOOP, or similar.

Standard lab biomarkers (routine annual labs)

  • Fasting glucose and HbA1c (ALA insulin sensitivity; NMN M-value — Yoshino 2021).
  • Blood pressure (NR reduced systolic ~9 mmHg in Martens 2018).
  • hsCRP — inflammaging marker; Singh 2022 reported CRP reductions on Urolithin A.
  • Comprehensive metabolic panel — tolerance verification in the first 3 months.

Specialized tests (optional)

  • DNA-methylation biological age (Horvath, PhenoAge, GrimAge, DunedinPACE) via TruDiagnostic or similar — Demidenko 2021 showed ~8-year DNAm-age drop. 4–6 month readout.
  • Plasma acylcarnitine profile — marker of incomplete fatty-acid β-oxidation. Andreux 2019 reported reductions on Urolithin A.
  • Whole-blood NAD+ levels via Jinfiniti or Genova — verifies NMN/NR is elevating the substrate pool.
  • VO2 max and resting heart rate — cardiopulmonary fitness tracks cardiac-mitochondrial density.

Common myths and corrections

"Antioxidants block exercise adaptation"

Partly true. The Ristow 2009 (PNAS) study showed high-dose vitamin C (1 g) + vitamin E (400 IU) blunted insulin-sensitivity gains from exercise in young, lean men. The signal doesn't extend cleanly to ALA, CoQ10, NAD+ precursors, Urolithin A, or PQQ at the doses on this page. Operational rule: take antioxidant-network products (ALA, NAC if added) outside the 60-minute window around training to preserve the ROS-mediated AMPK/PGC-1α signal.

"NMN is banned by the FDA"

The FDA's 2022 NDIN response on NMN reclassified the molecule as excluded from the dietary-supplement definition because it had been authorized for investigation as a drug before being marketed as a supplement. The status is contested (industry petition pending). NMN remains widely available in the US and is sold by major longevity brands. NR is FDA-NDI-cleared without similar contention.

"You should take NAD+ directly instead of a precursor"

Oral NAD+ itself is largely degraded to nicotinamide in the GI tract before absorption. The successful oral strategies (NMN one step away, NR two steps away) are designed around the GI degradation problem. IV NAD+ bypasses GI but is expensive and the half-life is short. Published trials use precursors, not NAD+ itself.

"Mitophagy = autophagy"

Related but not identical. Autophagy is the general "eat-yourself" recycling program. Mitophagy is the mitochondria-specific subset, gated by the PINK1/Parkin tagging system. Spermidine drives general autophagy with mitophagy cross-talk; Urolithin A is mitochondria-selective. Complementary, not redundant.

"More CoQ10 is always better"

Bioavailability ceilings exist. Plasma CoQ10 saturates around 200–300 mg/day in standard ubiquinone form; ubiquinol pushes the ceiling higher. Q-SYMBIO used 100 mg three times daily; typical longevity dose is 100–200 mg/day with food. Pushing past 400 mg ubiquinone rarely produces additional plasma rise.

Cost tiers and what each one buys you

  • Entry tier: Urolithin A 500 mg + NMN/NR. Two products, two pillars covered (mitophagy + energy production), trial-validated doses. Highest signal-per-dollar starting point.
  • Daily tier (~2× entry): Add CoQ10 + ALA + Glycine. Five products, four pillars, two dosing windows. Reference protocol for adults 45+.
  • Full tier (~3–4× entry): Add PQQ + Taurine + Creatine + Spermidine + CaAKG. 9–10 products, all four pillars at trial-grade dose.
  • Stack-bundle alternative: NAD+ 5-in-1 Complete consolidates NMN + CoQ10 + B-complex + antioxidants + skin actives in one capsule; Liposomal NAD+ Ultimate consolidates 10 actives in one liposomal carrier.

FAQ — mitochondrial renewal questions we get every week

If I can only afford two products, which two?

Urolithin A 500 mg + an NAD+ precursor (NMN or NR). Mitophagy clears the broken mitochondria; NAD+ keeps the surviving ones running. This pairing covers two of the four pillars at trial-validated doses. Run for 8–12 weeks before adding anything else; this gives you a clean baseline to evaluate.

NMN or NR — which is better?

Both work; they converge on the same NAD+ pool. NMN is one enzymatic step from NAD+; NR is two steps. NR has the larger published human-trial dataset (Trammell 2016, Conze 2019, Martens 2018, Brakedal 2022 NADPARK) and the patent-protected Niagen form; NMN has shorter-step substrate kinetics and a growing trial base (Yoshino 2021, Yamaguchi 2022, Igarashi 2022). Most users pick by price, format, and brand-trust history. Liposomal NAD+ Ultimate bundles both.

Should I take ubiquinone or ubiquinol CoQ10?

Both forms convert to each other inside the body. Ubiquinol has slightly better bioavailability in some PK studies, particularly in older adults. Ubiquinone is the form used in Q-SYMBIO and most cardiovascular literature. Our CoQ10 400 mg is ubiquinone; the higher dose compensates for the bioavailability difference. Take with a fat-containing meal — bioavailability roughly triples with food.

Why is Urolithin A so expensive?

Urolithin A is patent-class chemistry (Mitopure-spec is the original Amazentis IP behind the Andreux 2019 trial) with synthesis costs an order of magnitude above commodity vitamins. The endogenous-conversion alternative (eat ellagitannin-rich pomegranates and walnuts) only works for the ~30–40% of adults with the right gut microbiome, and even there the produced doses are far below the 500 mg trial dose. The price reflects the chemistry.

Do I need TMG with NMN or NR?

Some Sinclair-stack practitioners add trimethylglycine with NAD+ precursors to "preserve the methylation pool." The empirical evidence for clinically meaningful methylation depletion at the standard NMN/NR doses is mixed. If you're on a high NMN/NR dose (>500 mg/day for >6 months) and want to reassure yourself, methylated-folate + B12 + a B-complex covers the methylation-pool maintenance angle.

Can I take everything at once in the morning?

Operationally, yes — most users take the morning stack as a single hand-pile with breakfast and a fat source (CoQ10 needs fat for absorption; ALA prefers empty stomach but most users compromise for adherence). The exceptions: Glycine and Spermidine work best in the evening (Glycine for slow-wave sleep, Spermidine for autophagy windows aligned with the overnight fast). Creatine and Taurine timing are flexible.

How long until I feel something?

Subjective shifts at week 2–4. Endurance and recovery shifts at week 6–12 (Urolithin A trial readouts). Biological-age clock shifts at month 4–7. If you feel nothing at week 12, two diagnostic questions: (a) is the foundational micronutrient floor in place — vitamin D, magnesium, omega-3, sleep duration, protein floor? (b) is there a hidden upstream variable — undiagnosed thyroid, sleep apnea, B12 deficiency, alcohol load? Mitochondrial supplements work best on top of a foundational floor, not in place of one.

Should I cycle on and off?

Most products in this collection are daily-continuous in the published literature. There's no published evidence of tolerance or downregulation with NMN, NR, CoQ10, ALA, Glycine, Taurine, Creatine, PQQ, Spermidine, or Urolithin A. CaAKG was used continuously in Demidenko 2021; some users cycle it on first-principles grounds (3 months on, 1 month off), but the trial didn't.

I'm on a statin. Should I add CoQ10?

Statins block endogenous CoQ10 synthesis at HMG-CoA reductase (Marcoff and Thompson 2007). Mortensen 2014 Q-SYMBIO heart-failure trial used 100 mg three times daily for 2 years and showed a 43% reduction in major adverse cardiovascular events. Most cardiologists are comfortable with 100–200 mg CoQ10/day in statin users; some recommend it routinely.

Can I take this if I'm trying to conceive?

The fertility-specific subset of this collection (CoQ10, NAC, glutathione, ALA, PQQ) overlaps directly with the Fertility collection's pre-conception protocol — the 60–90 day pre-conception window for mitochondrial conditioning aligns with spermatogenesis (74 days) and antral-follicle development (~85 days). Once actively trying, pause Spermidine, CaAKG, and other actives without pregnancy-safety data, and switch to the prenatal-vitamin floor + a fertility-clinic-approved CoQ10 dose.

I'm vegan/vegetarian. Are these products compatible?

Most products in this collection use HPMC vegetarian capsules (Glycine, ALA, NMN, NR, PQQ, Taurine, Creatine, Spermidine, Urolithin A, CaAKG). CoQ10 in softgel format historically used bovine gelatin shells — verify the specific SKU on the product page. Spermidine source is wheat germ extract (not a vegan issue, but flagged for celiac/gluten-sensitive users — confirm specific SKU certification).

Can I get a CoA for my specific batch?

Yes. Email support@truehealthprotocol.health with the product name, the batch lot number printed on the bottle, the best-by date, and (optionally) your order number. We return the original lab PDF plus a plain-English summary in one business day. Pre-order representative-CoA requests are also supported. No-redaction policy.

Why don't you sell IV NAD+ or pharmacological doses?

IV NAD+ is a clinic-administered service, not a retail supplement product. Pharmacological-dose chemistry (rapamycin, metformin, dasatinib, GHK-Cu, BPC-157) is prescription-pharma territory and we don't carry any of those — see the catalog-exclusion principle in /pages/about.

Returns?

30-day satisfaction guarantee on all products in this collection. Contact support@truehealthprotocol.health for a refund — see /pages/guarantee and /policies/refund-policy for the operational detail. The longer-arc effects (mitophagy gene-expression rewriting, biological-age clock shifts) operate on 8–24 week windows; the 30-day window is for early-tolerance-and-evaluation, not full-effect timeline.

Reading list and primary references

The references below are the canonical reading order behind the claims on this page. Most are open-access PubMed entries; a few are paywalled but abstracts are available everywhere.

  1. López-Otín C, Blasco MA, Partridge L, Serrano M, Kroemer G. The hallmarks of aging. Cell. 2013;153(6):1194–1217.
  2. López-Otín C, Blasco MA, Partridge L, Serrano M, Kroemer G. Hallmarks of aging: an expanding universe. Cell. 2023;186(2):243–278.
  3. Sun N, Youle RJ, Finkel T. The mitochondrial basis of aging. Mol Cell. 2016;61(5):654–666.
  4. Andreux PA, Blanco-Bose W, Ryu D, et al. The mitophagy activator urolithin A is safe and induces a molecular signature of improved mitochondrial and cellular health in humans. Nat Metab. 2019;1(6):595–603.
  5. Singh A, D'Amico D, Andreux PA, et al. Urolithin A improves muscle strength, exercise performance, and biomarkers of mitochondrial health. Cell Rep Med. 2022;3(5):100633.
  6. Liu S, D'Amico D, Shankland E, et al. Effect of urolithin A supplementation on muscle endurance and mitochondrial health in older adults. JAMA Netw Open. 2022;5(1):e2144279.
  7. Tomás-Barberán FA, et al. Urolithins, the rescue of "old" metabolites: metabotypes as a nexus among phenolic metabolism, microbiota dysbiosis, and host health. Mol Nutr Food Res. 2017;61(1):1500901.
  8. Eisenberg T, Knauer H, Schauer A, et al. Induction of autophagy by spermidine promotes longevity. Nat Cell Biol. 2009;11(11):1305–1314.
  9. Eisenberg T, Abdellatif M, Schroeder S, et al. Cardioprotection and lifespan extension by the natural polyamine spermidine. Nat Med. 2016;22(12):1428–1438.
  10. Kiechl S, Pechlaner R, Willeit P, et al. Higher spermidine intake is linked to lower mortality. Am J Clin Nutr. 2018;108(2):371–380.
  11. Mortensen SA, Rosenfeldt F, Kumar A, et al. The effect of coenzyme Q10 on morbidity and mortality in chronic heart failure (Q-SYMBIO). JACC Heart Fail. 2014;2(6):641–649.
  12. Marcoff L, Thompson PD. The role of coenzyme Q10 in statin-associated myopathy. JACC. 2007;49(23):2231–2237.
  13. Bentov Y, et al. Coenzyme Q10 supplementation and oocyte aneuploidy in women undergoing IVF-ICSI. Clin Med Insights Reprod Health. 2014;8:31–36.
  14. Trammell SAJ, et al. Nicotinamide riboside is uniquely and orally bioavailable in mice and humans. Nat Commun. 2016;7:12948.
  15. Conze D, Brenner C, Kruger CL. Safety and metabolism of long-term administration of NIAGEN. Sci Rep. 2019;9(1):9772.
  16. Martens CR, et al. Chronic nicotinamide riboside supplementation is well-tolerated and elevates NAD+ in healthy middle-aged and older adults. Nat Commun. 2018;9(1):1286.
  17. Brakedal B, et al. The NADPARK study: a randomized phase I trial of NR in Parkinson's disease. Cell Metab. 2022;34(3):396–407.e6.
  18. Yoshino M, Yoshino J, Kayser BD, et al. NMN increases muscle insulin sensitivity in prediabetic women. Science. 2021;372(6547):1224–1229.
  19. Yamaguchi S, et al. Safety and efficacy of long-term NMN supplementation. Endocr J. 2022;69(10):1185–1193.
  20. Igarashi M, et al. Chronic NMN supplementation elevates blood NAD+ levels and alters muscle function in healthy older men. npj Aging. 2022;8(1):5.
  21. Camacho-Pereira J, et al. CD38 dictates age-related NAD decline and mitochondrial dysfunction through an SIRT3-dependent mechanism. Cell Metab. 2016;23(6):1127–1139.
  22. Massudi H, et al. Age-associated changes in oxidative stress and NAD+ metabolism in human tissue. PLOS One. 2012;7(7):e42357.
  23. Chowanadisai W, et al. Pyrroloquinoline quinone stimulates mitochondrial biogenesis through CREB phosphorylation and increased PGC-1α expression. J Biol Chem. 2010;285(1):142–152.
  24. Harris CB, et al. Dietary PQQ alters indicators of inflammation and mitochondrial-related metabolism in human subjects. J Nutr Biochem. 2013;24(12):2076–2084.
  25. Hwang PS, et al. Effects of PQQ supplementation on aerobic exercise performance and indices of mitochondrial biogenesis. J Am Coll Nutr. 2020;39(6):547–556.
  26. Ziegler D, et al. Efficacy and safety of antioxidant treatment with α-lipoic acid over 4 years in diabetic polyneuropathy: NATHAN 1. Diabetes Care. 2011;34(9):2054–2060.
  27. Ziegler D, et al. Oral treatment with α-lipoic acid improves symptomatic diabetic polyneuropathy: SYDNEY 2. Diabetes Care. 2006;29(11):2365–2370.
  28. Sekhar RV, et al. Deficient synthesis of glutathione underlies oxidative stress in aging. Am J Clin Nutr. 2011;94(3):847–853.
  29. Kumar P, et al. GlyNAC supplementation in older adults improves glutathione deficiency, oxidative stress, mitochondrial dysfunction, inflammation, insulin resistance, walking speed, and cognition. Clin Transl Med. 2021;11(3):e372.
  30. Singh P, Gollapalli K, Mangiola S, et al. Taurine deficiency as a driver of aging. Science. 2023;380(6649):eabn9257.
  31. Schaffer SW, et al. Physiological roles of taurine in heart and muscle. J Biomed Sci. 2010;17(Suppl 1):S2.
  32. Forbes SC, et al. Meta-analysis examining the importance of creatine ingestion strategies on lean tissue mass and strength in older adults. Nutrients. 2021;13(6):1912.
  33. Roschel H, Gualano B, Ostojic SM, Rawson ES. Creatine supplementation and brain health. Nutrients. 2021;13(2):586.
  34. Asadi Shahmirzadi A, et al. Alpha-ketoglutarate, an endogenous metabolite, extends lifespan and compresses morbidity in aging mice. Cell Metab. 2020;32(3):447–456.e6.
  35. Demidenko O, et al. Rejuvant®: ~8-year reduction in biological aging in the TruAge DNA methylation test. Aging. 2021;13(22):24485–24499.
  36. Ristow M, et al. Antioxidants prevent health-promoting effects of physical exercise in humans. PNAS. 2009;106(21):8665–8670.
  37. Yamadera W, et al. Glycine ingestion improves subjective sleep quality, correlating with polysomnographic changes. Sleep Biol Rhythms. 2007;5(2):126–131.
  38. Howitz KT, et al. Small molecule activators of sirtuins extend Saccharomyces cerevisiae lifespan. Nature. 2003;425(6954):191–196.
  39. Horvath S. DNA methylation age of human tissues and cell types. Genome Biol. 2013;14(10):R115.
  40. Belsky DW, et al. DunedinPACE, a DNA methylation biomarker of the pace of aging. eLife. 2022;11:e73420.

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FDA disclaimer: These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. Educational information, not medical advice. Consult a qualified healthcare provider before starting any supplement, particularly if pregnant, nursing, on prescription medication, with a chronic medical condition, or scheduled for surgery. Individual results may vary. Per-batch potency and contaminant testing — see /pages/quality.
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