Brain & Cognitive Longevity

Your brain ages faster than your body — and most longevity stacks ignore it. By age 60 the average human brain has lost 15–20% of its volume in regions that matter most for memory, judgement, and decision-making. The hippocampus shrinks roughly 1–2% per year after age 40 (Raz 2005). Mitochondrial output in cortical neurons drops faster than in any other tissue. Chronic low-grade neuroinflammation — the same "inflammaging" process that drives joint pain, cardiovascular disease, and metabolic decline — is now considered an upstream driver of Alzheimer's pathology (Heneka 2015). And the brain consumes roughly 20% of your daily energy despite being only 2% of body weight, which means cellular-energy decline hits the brain first and hardest.

The good news: a small number of compounds have real, replicated human evidence for protecting the upstream drivers of brain aging. Not nootropics for a single afternoon's "focus" — actual cellular interventions that protect neurons, fuel neuronal mitochondria, repair membranes, dampen neuroinflammation, and clear out senescent cells over decades. The Brain & Cognitive Longevity collection is the curated set of those compounds — every SKU here has either a published randomised controlled trial in cognitive endpoints, a mechanistically validated role in a brain-aging hallmark, or both. No racetam analogues, no proprietary blends, no "memory-supporting herbal complex" with undisclosed doses. Ten products, ten mechanisms, every dose anchored to a published trial.

This page is built to be the most thorough brain-longevity reference on the open internet for non-clinicians. It is long on purpose. If you are short on time, the 60-second answer below tells you what to do this afternoon. If you have ten minutes, the table of contents lets you jump to the section that fits your situation. If you have an hour and you want to understand why these particular ten compounds and not the dozens you have read about elsewhere, read it through. Every claim is mechanistically grounded; every dose is anchored to a published trial; every product link goes to a SKU we stock and ship.

The 60-second answer

  • Two non-negotiable foundations — Omega-3 EPA/DHA 2000 mg ($24.99, neurons are 30% DHA by weight) and Creatine 5 g/day ($29.99, the most-replicated cognitive supplement in the literature). Start here. Skip everything else if you have to.
  • Add inflammation control with Curcumin 1000 mg + BioPerine ($26.99) — one of a tiny set of polyphenols that crosses the blood–brain barrier in measurable concentrations and downregulates NF-κB.
  • Add mitochondrial biogenesis with PQQ 20 mg ($29.99) — the only widely-studied oral compound that triggers new mitochondria at clinical doses by activating PGC-1α.
  • Add NAD+ restoration via NAD+ Pure Focus Formula ($22.99), NR Hard Capsules ($44.99), or Liquid NAD+ Berry Sticks ($39.99) — neurons are NAD+-hungry and crash NAD+ first. The full NAD+ ladder lives in NAD+ Family.
  • Layer cellular cleanup with Spermidine 10 mg ($34.99) for autophagy, and rotate through the Senolytics stack (Fisetin + Quercetin + Apigenin) and Mitochondrial Renewal protocol (Urolithin A + PQQ + CoQ10).
  • Resilience layer — Ashwagandha KSM-66 600 mg ($26.99) for cortisol/sleep. Chronic cortisol elevation atrophies the hippocampus directly; you cannot supplement around poor sleep.
  • SIRT1 activation — Pterostilbene 100 mg ($32.99) is more bioavailable than resveratrol and crosses the blood–brain barrier more efficiently.
  • Realistic timeline: energy and sleep changes in 1–2 weeks, sustained focus and recall improvements in 6–12 weeks, structural protection on a multi-year timescale.
  • Backed by our 30-Day Keep-the-Bottle Guarantee, third-party HPLC potency testing (Quality & Sourcing), and full Ingredient Sourcing transparency.

On this page

Why brain longevity is its own discipline

Most longevity content treats "the brain" as a downstream organ — keep your heart healthy, your gut healthy, your sleep dialed-in, and your brain follows. That is true on paper. It also means most people start cognitive interventions a decade later than they should. The brain is metabolically the hungriest organ in the body and the slowest to repair: when neurons die they are not replaced (with the limited exception of the hippocampus and a couple of other niches), when myelin degrades it is rebuilt only sluggishly, and when mitochondrial output drops in cortical neurons the consequences (FDG-PET hypometabolism) appear decades before symptoms.

The corollary is that brain-specific protection is the rare longevity domain where being early matters more than being intense. A modest, consistent, mechanistically-correct stack started in your 30s and 40s does more than a heroic stack started after symptoms appear. Every product on this page is a candidate for a multi-decade investment, not a one-shot intervention.

What "brain longevity" means in this catalog

We use a narrower definition than most:

  • Hallmark-based. Every active in this collection maps to one of the López-Otín hallmarks of aging (mitochondrial dysfunction, loss of proteostasis, deregulated nutrient sensing, cellular senescence, etc.) as expressed in neurons. See Our Science for the full hallmarks framework.
  • Trial-anchored. Every dose recommended on this page comes from a published human trial measuring a relevant cognitive or biomarker endpoint — not extrapolation from cell culture or rodent dosing.
  • Mechanism-distinct. No two products in the collection do the same thing in the same way. There is no "second creatine," no "second omega-3." Every SKU earns its place by occupying a unique mechanistic niche.
  • Multi-decade safe. No nootropic stimulants, no racetam analogues, no compounds that desensitise receptors over time. Everything here is designed for daily use over decades.

What we explicitly do not sell

  • Racetams (piracetam, aniracetam, oxiracetam) — minimal long-term safety data, weak human cognitive endpoints in healthy adults.
  • Stimulant-class "focus" compounds (modafinil, methylphenidate analogues, high-dose caffeine combinations) — borrow energy from the future, do nothing for cellular aging.
  • Proprietary nootropic blends with undisclosed doses — the catalog principle is "single-ingredient, trial-validated dose, third-party tested." Blends are explicitly disclosed (e.g., the multi-active NAD+ Pure Focus Formula has every ingredient and dose printed on the label).
  • Compounds without human evidence at the dose sold (looking at you, "memory mushroom" extracts at 50 mg/day in a market where the trial doses are 1.5–3 g/day).

Five mechanisms of brain aging — and what in this collection targets each

1. Mitochondrial decline (the energy crash)

Neurons cannot store glucose like muscle cells can; they burn ATP in real time. As mitochondrial efficiency drops with age, the brain compensates by recruiting more glucose — until it can't. This is one of the earliest measurable changes in age-related cognitive decline (Mosconi 2008: FDG-PET hypometabolism appears 15–20 years before clinical Alzheimer's symptoms). The fix is a layered approach: raise the substrate pool (Creatine increases brain phosphocreatine ~5–10% in 28 days at 5 g/day, per Avgerinos 2018 meta-analysis of 16 RCTs), raise the cofactor pool (NAD+ via NR or NAD+ formulas — every mitochondrial enzyme in the electron transport chain needs NAD+), and build new mitochondria (PQQ at 10–20 mg/day activates PGC-1α, the master regulator of mitochondrial biogenesis, per Chowanadisai 2010; Itoh 2016 showed measurable cognitive improvements at 20 mg/day in older adults).

2. Membrane fluidity loss (the DHA gap)

Neuronal membranes are roughly 30% DHA by weight. DHA is the longest, most-unsaturated fatty acid in the human body — 22 carbons, six double bonds — and it is what lets neurons fire fast and synaptic membranes flex during plasticity. As DHA levels drop with aging or low-fish diets, membranes stiffen, neurotransmitter receptors function less well, and synaptic plasticity degrades. Omega-3 EPA/DHA at clinically-studied doses (1–3 g/day combined) is the single most-cited supplement for slowing age-related cognitive decline. The American Heart Association recommends ≥1 g/day for cardiovascular health alone; brain trials (e.g., Yurko-Mauro 2010: 900 mg DHA daily for 24 weeks improved age-related cognitive decline in the MIDAS trial) typically use 2–3 g/day for measurable cognitive endpoints.

3. Neuroinflammation (the microglia problem)

The brain has its own resident immune cells called microglia. When they shift to a chronically activated ("M1-like") state — driven by visceral fat, gut permeability, viral exposure, or aging itself — they release IL-1β, IL-6, and TNF-α directly into brain tissue. This is now considered an upstream driver of Alzheimer's pathology (Heneka 2015 in Lancet Neurology). Curcumin with BioPerine is one of a small number of compounds that crosses the blood–brain barrier in measurable concentrations and directly downregulates NF-κB, the master inflammation switch (Small 2018: 18-month RCT showed memory and attention improvements at 90 mg twice daily of bioavailable curcumin in 40 non-demented adults aged 51–84). The piperine in BioPerine raises systemic curcumin bioavailability by roughly 20× (Shoba 1998). For broader anti-inflammatory layering, the Spermidine-driven autophagy mechanism and the Senolytics protocol both reduce SASP cytokines that contribute to neuroinflammation.

4. NAD+ collapse (the cofactor crash)

NAD+ levels drop ~50% between age 20 and 60 in most tissues — but neurons crash earlier and harder, because they're the most metabolically active cells in the body. Without NAD+, sirtuins can't deacetylate, PARPs can't repair DNA, and the electron transport chain stalls. Restoring NAD+ via precursors (NR, NMN) is the single most-studied longevity intervention of the last decade (Martens 2018, Yoshino 2021, Conze 2019, and many more). The NAD+ Family in this collection — NAD+ Pure Focus Formula (NR + Resveratrol + PQQ + Quercetin in a daily drink mix), NR Hard Capsules (300 mg patented NR + B-vitamin cofactors), and Liquid NAD+ Berry Sticks (NR delivered in a stick-pack format with no caffeine) — gives you three different format/dose options for the same mechanism. The catalog also stocks NMN 500 mg and NMN 1000 mg if you prefer the NMN precursor route.

5. Cellular accumulation (zombie cells & broken mitochondria)

The aging brain accumulates senescent ("zombie") cells that won't die but won't function — they secrete inflammatory SASP cytokines that damage neighbours. It also accumulates damaged mitochondria that should have been recycled by mitophagy. Spermidine at 1.2–10 mg/day induces autophagy (the cellular cleanup pathway) — observational data from Kiechl 2018 linked higher dietary spermidine to roughly 5–7 year mortality reductions, and the Schwarz 2018 SmartAge trial showed memory improvements in older adults at risk for dementia. For deeper cleanup, layer in the broader Senolytics protocol (Fisetin + Quercetin + Apigenin) and the Mitochondrial Renewal stack (Urolithin A + PQQ + CoQ10).

The four pillars of brain longevity

Every supplement on this page falls under one or more of four functional pillars. If your stack is missing a pillar, that gap is doing more damage than over-dosing on whatever you already take.

Pillar 1 — Substrate & cofactor (raw materials)

Neurons need glucose, ATP, phosphocreatine, NAD+, B-vitamins, and DHA membrane lipids in stoichiometric amounts. Run any of those low and the brain throttles. The substrate-and-cofactor pillar is filled by Creatine (phosphocreatine reserve), Omega-3 EPA/DHA (DHA membrane substrate), and the NAD+ trio of NAD+ Pure Focus Formula, NR Capsules, and Liquid NAD+. Cross-collection: Magnesium Glycinate and TMG from Foundational Health are the methylation and Mg cofactors that make the NAD+ pathway run.

Pillar 2 — Inflammation & oxidative stress control

Microglial activation, blood–brain barrier dysfunction, and ROS damage compound across decades. The inflammation-control pillar is filled by Curcumin + BioPerine (NF-κB downregulation), Omega-3 (resolvins and protectins), and Pterostilbene (SIRT1 activation, anti-inflammatory). For deeper oxidative-stress coverage layer in NAC + Glycine (the GlyNAC pair raises endogenous glutathione), Alpha-Lipoic Acid (universal antioxidant, mitochondrial cofactor), and Astaxanthin (one of the few BBB-crossing membrane-anchored antioxidants).

Pillar 3 — Cellular cleanup (autophagy, mitophagy, senolysis)

The aging brain accumulates broken proteins, broken mitochondria, and senescent cells. The cleanup pillar is filled directly by Spermidine (autophagy), and indirectly by the Senolytics protocol (Fisetin, Quercetin, Apigenin) and Urolithin A (mitophagy). The catalog principle is that cleanup compounds rotate — most evidence is for pulsed dosing rather than daily-forever administration.

Pillar 4 — Resilience & HPA-axis modulation

Chronic cortisol elevation atrophies the hippocampus directly. Sleep fragmentation impairs glymphatic clearance of amyloid-β. You cannot supplement around poor sleep or chronic stress; the brain-aging clock simply runs faster. The resilience pillar is filled by Ashwagandha KSM-66 (cortisol modulation, sleep quality, BDNF), Glycine (slow-wave sleep induction), and Magnesium Glycinate (GABA-A modulation, sleep architecture).

The ten actives in this collection — what each one does, what it doesn't

Omega-3 Fish Oil 2000 mg (EPA/DHA)

Omega-3 Fish Oil 2000 mg — $24.99 — is the membrane substrate. EPA and DHA are the two long-chain omega-3 fatty acids the brain cannot synthesise efficiently from short-chain ALA (conversion is ~5% in healthy adults, much lower in older adults and almost nil in vegan diets unless supplemented with algal DHA). DHA accumulates in the synaptic membrane; EPA acts upstream on inflammation via the resolvin/protectin pathway. The MIDAS trial (Yurko-Mauro 2010) used 900 mg DHA/day for 24 weeks and showed improved learning and memory scores in older adults. The OmegAD 2006 trial used 1.7 g DHA + 0.6 g EPA for 6 months in mild Alzheimer's. What it does: repairs membrane fluidity, dampens neuroinflammation, supports cardiovascular delivery to the brain. What it doesn't do: raise NAD+, induce autophagy, or activate sirtuins — those are separate pillars.

Creatine Monohydrate (5 g/day)

Creatine Monohydrate 1000 mg — $29.99 — is the most-replicated cognitive supplement in the literature. It is also the cheapest and the safest. Avgerinos 2018 meta-analysis of 16 RCTs in healthy adults: small-to-moderate cognitive improvements, strongest in sleep-deprived states and older adults. Rae 2003: 5 g/day for 6 weeks improved working memory and intelligence test performance in vegetarians. What it does: raises brain phosphocreatine reserve ~5–10%, buffers ATP regeneration during high cognitive demand, may have antioxidant effects in mitochondria. What it doesn't do: work for everyone — non-responders are real, particularly in already-saturated meat-eaters. Loading is optional; 5 g/day for 28 days reaches saturation.

Curcumin 1000 mg + BioPerine

Curcumin 1000 mg + BioPerine — $26.99 — is the brain-targeted anti-inflammatory. The fact pattern: curcumin alone is poorly absorbed, but co-administering with piperine (the active in BioPerine) raises systemic bioavailability roughly 20× (Shoba 1998). The Small 2018 RCT in 40 non-demented adults aged 51–84 used 90 mg twice daily of bioavailable curcumin for 18 months and found memory and attention improvements plus reduced amyloid/tau accumulation in the amygdala and hypothalamus on PET. What it does: downregulates NF-κB, reduces COX-2 expression, supports endothelial function. What it doesn't do: work fast — meaningful neuroinflammation reduction takes 8+ weeks. Take with a fatty meal or in capsule format with included BioPerine.

PQQ 20 mg (Pyrroloquinoline Quinone)

PQQ 20 mg — $29.99 — is the mitochondrial-biogenesis trigger. PQQ activates PGC-1α (the master regulator of mitochondrial biogenesis), CREB, and NRF2 (Chowanadisai 2010). Itoh 2016 in 41 older adults at 20 mg/day for 12 weeks: improved Stroop and visuospatial task performance, with effects observable on fMRI. PQQ is found in trace amounts in food (parsley, green peppers, fermented soy) but not in clinically-relevant doses. What it does: stimulates new mitochondria, raises antioxidant defence, may support nerve growth factor expression. What it doesn't do: replace existing mitochondria — pair with Urolithin A for the recycling side of the equation.

Spermidine 10 mg (wheat-germ extract)

Spermidine 10 mg — $34.99 — is the autophagy inducer. Spermidine is one of a small number of caloric-restriction mimetics that triggers autophagy without you needing to fast (Eisenberg 2016). The Kiechl 2018 Bruneck cohort study linked higher dietary spermidine intake to roughly 5–7 year mortality reductions; the Schwarz 2018 SmartAge trial in older adults at risk for dementia showed memory improvements at 0.9–3.3 mg/day. The 10 mg dose on this page reflects the higher end of trial dosing. What it does: induces autophagy, supports mitochondrial fission/fusion balance, may protect cardiovascular function. What it doesn't do: work fast — autophagy biomarkers shift on a 4–8 week timescale.

NAD+ Pure Focus Formula (drink mix)

NAD+ 1000 mg Pure Focus Formula — $22.99 — is the NAD+ entry SKU. It combines NR (NAD+ precursor), trans-resveratrol (SIRT1 activator), PQQ (mitochondrial biogenesis), and quercetin (CD38 inhibition + senolytic) in a daily drink mix. The combo logic: NR raises NAD+ substrate, resveratrol activates the sirtuins that need NAD+, PQQ builds the mitochondria that consume NAD+ for ATP, quercetin slows CD38-driven NAD+ degradation. What it does: delivers a four-active NAD+ stack in a single morning drink. What it doesn't do: hit dose ceilings — for higher NR or NMN doses see the standalone NR Capsules or NMN 1000 mg SKUs.

NR Hard Capsules (Patented NR)

Nicotinamide Riboside Hard Capsules — $44.99 — is the trial-anchored standalone NR SKU. NR is the patented (NIAGEN-class) NAD+ precursor used in the majority of human NAD+-raising trials: Martens 2018 in older adults at 500 mg twice daily for 6 weeks raised whole-blood NAD+ ~60% and lowered systolic BP. Conze 2019: similar NAD+-raising at 100–1000 mg/day. What it does: raises NAD+ via the salvage pathway, supports sirtuin function, includes B-vitamin methylation cofactors. What it doesn't do: bypass methylation — high-dose NAD+ pathways consume methyl groups, so layering with TMG is recommended at sustained doses ≥600 mg/day.

Liquid NAD+ Berry Sticks

Liquid NAD+ Anti-Aging Drink — $39.99 — is the no-caffeine NR delivery format. Stick packs dissolve in water, taste like berry, and deliver an NR-class NAD+ precursor in a format that travels well and is easy to take consistently. What it does: raises NAD+ via the same salvage-pathway mechanism as the capsule SKU. What it doesn't do: contain stimulants — this is intentionally the "afternoon-friendly" NAD+ format if you don't want capsules with breakfast.

Pterostilbene 100 mg (trans-pterostilbene)

Pterostilbene 100 mg — $32.99 — is the resveratrol cousin with a methoxy substitution that makes it ~7× more bioavailable, with a ~4× longer half-life and a measurable BBB-crossing fraction (Kapetanovic 2011). McCormack 2013 review: pterostilbene activates SIRT1 in vitro and in vivo at doses comparable to or lower than resveratrol's. Riche 2013 in 80 hypercholesterolaemic adults at 100–250 mg/day for 6–8 weeks: blood pressure and lipid effects with good tolerability. What it does: activates SIRT1, may support memory and mood via BDNF expression, lipid-friendly. What it doesn't do: raise NAD+ on its own — pair with one of the NAD+ precursors above.

Ashwagandha KSM-66 600 mg

Ashwagandha KSM-66 600 mg — $26.99 — is the resilience anchor. KSM-66 is the most-trial-cited ashwagandha extract on the market (16+ published RCTs). Chandrasekhar 2012: 300 mg twice daily reduced perceived stress and morning cortisol significantly versus placebo. Salve 2019: similar dose reduced morning cortisol ~22% in a stress-cohort. Ng 2020: 600 mg/day improved sleep latency and quality. What it does: dampens HPA-axis hyperreactivity, lowers morning cortisol, improves sleep architecture, supports healthy testosterone in men. What it doesn't do: sedate acutely — this is HPA-axis modulation, not benzo-class sedation. Most trials show effects at 4–8 weeks.

Per-product trial evidence

Every dose recommended on this page is anchored to a published human trial. The table below summarises the strongest single citation per active. The full citation list is in the Reading list section.

Product Headline trial Dose used Duration Endpoint moved
Omega-3 EPA/DHA Yurko-Mauro 2010 (MIDAS) 900 mg DHA/day 24 weeks Learning & memory in older adults
Creatine Avgerinos 2018 meta-analysis 5 g/day (range 2–20 g) 4–24 weeks Working memory, reasoning (16 RCTs)
Curcumin + BioPerine Small 2018 90 mg bioavailable curcumin × 2/day 18 months Memory, attention, amyloid-β PET
PQQ Itoh 2016 20 mg/day 12 weeks Stroop, visuospatial, fMRI activation
Spermidine Schwarz 2018 (SmartAge) 0.9–3.3 mg/day 12 months Memory in at-risk older adults
NAD+ Pure Focus Martens 2018 (NR base) 500 mg NR × 2/day 6 weeks +60% whole-blood NAD+, lowered SBP
NR Capsules Conze 2019 100–1000 mg/day 8 weeks Dose-dependent NAD+ rise, well-tolerated
Liquid NAD+ Trammell 2016 PK study 100–300 mg single dose Single-dose PK Whole-blood NAD+ rise within hours
Pterostilbene Riche 2013 100–250 mg/day 6–8 weeks BP, lipids; good tolerability
Ashwagandha KSM-66 Chandrasekhar 2012 300 mg × 2/day 60 days −27.9% morning cortisol vs placebo

Three protocol tiers — entry, daily, full

The three tiers below correspond to budget, capsule-load tolerance, and how aggressive a longevity stance you want to take. Pick a tier and stay on it for at least 90 days before judging effect — most trial endpoints take 6–12 weeks to move.

Tier 1 — Entry brain stack (~$80/month)

What this tier covers: two of the four pillars (substrate + inflammation control). What it does not cover: NAD+ restoration, autophagy, resilience. This is the floor — under-spending below this line means you are not really running a brain-longevity protocol.

Tier 2 — Daily brain stack (~$140/month)

What this tier covers: three of the four pillars (substrate + inflammation + mitochondrial biogenesis + NAD+). NAD+ is delivered through the multi-active drink mix, which also provides Resveratrol and Quercetin in a single SKU. What it does not yet cover: dedicated cellular cleanup, dedicated resilience layer.

Tier 3 — Full brain protocol (~$220/month)

What this tier covers: all four pillars. Inflammation control is doubled (Curcumin + Pterostilbene), cellular cleanup is added (Spermidine), and the resilience/sleep layer is added (Ashwagandha). For deeper cleanup add the Senolytics rotation (Fisetin/Quercetin/Apigenin) and the Mitochondrial Renewal stack (Urolithin A) on a quarterly pulse schedule.

Quarterly senolytic pulse (add to any tier)

  • One weekend every 3 months: Fisetin 500 mg × 2 capsules daily for 2 days.
  • Or rotate Quercetin 500 mg on the same pulse schedule.
  • Why pulsed: the strongest mouse and current human senolytic evidence is for short-pulse dosing rather than daily-forever. See Senolytics for the full protocol.

Stacking with sister collections — eight directions

The brain pillar interacts with every other longevity pillar. The eight stacking directions below are the most common ways customers extend the brain protocol.

1. Brain + NAD+ Family

The brain stack already includes one or two NAD+ SKUs in Tier 2. To go deeper on NAD+ — particularly if you are over 50 or you want to test dose-response — add NMN 1000 mg or Liposomal NAD+ Ultimate from NAD+ Family. Pair with TMG if you exceed 600 mg/day NMN-class precursor.

2. Brain + Mitochondrial Renewal

PQQ alone builds new mitochondria but does not recycle the broken ones. Add Urolithin A 500 mg from Mitochondrial Renewal to activate mitophagy (PINK1/Parkin-driven recycling). The pair is mechanistically complementary: PQQ pushes biogenesis up, Urolithin A pushes mitophagy up, and the net effect is a younger mitochondrial population.

3. Brain + Senolytics

The aging brain accumulates senescent microglia and astrocytes that drive neuroinflammation through SASP cytokines. Pulsed Fisetin or Quercetin from Senolytics targets the SASP-secreting cells directly. Daily curcumin in this collection works alongside; senolytic pulses are quarterly.

4. Brain + Foundational Health

The brain stack assumes basic foundational coverage: Vitamin D3 + K2 MK-7, Magnesium Glycinate, and Glycine (slow-wave sleep). Vitamin D deficiency is independently linked to faster cognitive decline. Magnesium is the cofactor for the NAD+-using enzymes you are stacking on top. See Foundational Health.

5. Brain + Cardiovascular Longevity

Brain perfusion is what delivers all of the above. Cardiovascular insufficiency is the single biggest reversible upstream risk factor for late-life cognitive decline. Add CoQ10 400 mg and Taurine 1000 mg from Cardiovascular Longevity. The Omega-3 in this brain stack already serves both pillars.

6. Brain + Antioxidants

The brain produces more ROS per gram than any other tissue. The full Antioxidants protocol — NAC + Glycine (GlyNAC), Glutathione, Alpha-Lipoic Acid, Astaxanthin, Liposomal Vitamin C — gives you the master antioxidant pool the brain depends on.

7. Brain + Metabolic

Insulin resistance is increasingly recognised as "type 3 diabetes" of the brain. Berberine 500 mg from Metabolic activates AMPK and improves glucose disposal — this directly protects neurons from glucose-driven AGE damage. CaAKG rounds out the metabolic-epigenetic axis.

8. Brain + Most-Popular & bundles

If you would rather start from a bundle than a custom stack, the Longevity Stack Bundle ($74.99) and the Most Popular collection give you a curated 2–3 SKU starting point that overlaps with this brain protocol.

Week-by-week realistic timeline

What follows is a realistic week-by-week expectation curve for a Tier-2 protocol started at week 0. Effects are average across customer reports and trial endpoints — individual response varies and the strongest cellular protection is on a multi-year timescale that you will never feel acutely. Do not judge effect at 2 weeks. Most published trials measure endpoints at 6, 12, or 24 weeks for a reason.

Week 1–2 — saturation phase (no expected effect)

Creatine is reaching brain-tissue saturation (~28 days at 5 g/day). Omega-3 is replacing membrane phospholipids on a slow rolling basis. NAD+ precursors raise whole-blood NAD+ within hours to days, but downstream sirtuin and mitochondrial effects lag. Curcumin and PQQ have not had time to shift inflammation or biogenesis markers. What to expect: nothing or very mild energy changes.

Week 2–4 — energy and sleep window

Most customers notice the energy/sleep layer first. NAD+ effects on perceived energy and sleep quality are often the earliest signal. Ashwagandha (if added) is starting to lower morning cortisol. Creatine is fully saturating. What to expect: better afternoon energy, mild improvements in sleep latency, less "9 AM grogginess" feel.

Week 4–8 — focus and inflammation window

This is where curcumin starts to move the inflammation marker pool (CRP, IL-6, hs-CRP). PQQ-driven mitochondrial biogenesis becomes biochemically detectable. Pterostilbene-driven SIRT1 activation is detectable in some markers. What to expect: better sustained focus on long tasks, fewer "fog" episodes, mild improvements in working memory under cognitive load.

Week 8–12 — memory and recall window

Most published cognitive trials hit their primary endpoints in this window. Omega-3 is now structurally embedded in synaptic membranes. Subjective recall and word-finding tend to improve here in those with measurable baseline deficits. What to expect: measurable improvements on cognitive testing if you bother to test.

Month 3–6 — protocol stabilisation

The stack is now operating in steady-state. Most customers settle into a maintenance dose pattern. This is the right time to add the senolytic pulse (one weekend per quarter) and to test biomarkers. What to expect: a stable cognitive baseline that holds under stress, improved sleep architecture, faster recovery from cognitive overload.

Year 1+ — structural protection

The structural-protection benefits — slower hippocampal atrophy, lower rate of microglial activation, preserved white-matter integrity — operate on a timescale you cannot feel acutely. Trial endpoints at 18+ months (Small 2018 curcumin, OmegAD 2006 omega-3) consistently show widening separation from controls. The right way to evaluate at year 1+ is biomarkers and cognitive testing, not subjective feel.

Drug interactions and precautions — read this section before starting

This section is comprehensive but not exhaustive. If you take prescription medication, are pregnant, are nursing, or have a serious medical condition, talk to your physician before starting any of the products on this page.

Omega-3 EPA/DHA

Theoretical bleeding risk at high doses (>3 g/day) when combined with anticoagulants (warfarin, apixaban, rivaroxaban) or antiplatelets (aspirin, clopidogrel). Modern systematic reviews suggest the actual clinical bleeding risk is low at doses ≤4 g/day. Pause omega-3 5–7 days before elective surgery on physician advice.

Creatine

Generally well-tolerated. Drink an extra litre of water daily during loading. Caution in advanced kidney disease (consult nephrologist).

Curcumin + BioPerine

Piperine inhibits CYP3A4 and P-glycoprotein, which can raise levels of medications metabolised by those pathways (some antihypertensives, calcium-channel blockers, some statins, certain antibiotics, certain immunosuppressants). If you take medication metabolised through CYP3A4, talk to your prescriber. Curcumin itself has mild antiplatelet activity at high doses.

PQQ

No significant drug interactions documented in the published literature at the 10–20 mg dose range. Mild stimulating effect in some people — if it impacts sleep, move to a morning dose.

Spermidine

Wheat-germ-derived; not suitable for those with diagnosed wheat or gluten allergy. No documented drug interactions at the 10 mg dose. Pregnancy/lactation: insufficient safety data, avoid.

NAD+ precursors (NR, NMN, NAD+)

Generally well-tolerated. Some users report mild flushing with high-dose NMN. Methylation cofactor depletion at sustained doses ≥600 mg/day; pair with TMG. Caution in active oncology — consult oncologist before starting any NAD+ precursor.

Pterostilbene

Riche 2013 noted small LDL increases at the 250 mg/day dose without statin co-administration. Use the 100 mg dose unless monitored. Mild blood-thinning at very high doses; standard anticoagulant caution.

Ashwagandha KSM-66

May lower TSH and modestly raise thyroid hormone production — caution in active hyperthyroidism. May lower blood sugar — caution in those on insulin or sulfonylureas. May increase the effect of sedative medications. Pregnancy: avoid. Autoimmune conditions: discuss with your physician.

Stacking caution — methylation budget

Sustained high-dose NAD+ precursors (NR or NMN at ≥600 mg/day) consume methyl groups. Pair with TMG 1000 mg as a precaution.

Stacking caution — antioxidant timing around exercise

High-dose antioxidants (NAC, Vitamin C, glutathione precursors) taken in the immediate post-workout window may blunt the hormetic ROS signal that drives mitochondrial biogenesis. Time antioxidants in the morning or with non-workout meals.

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

This collection is built for

  • Adults aged 30–75 who are cognitively intact and want a multi-decade investment in slowing the upstream drivers of brain aging — not treating an existing diagnosis.
  • People with a family history of late-life cognitive decline who want to start protective interventions decades earlier than their relatives did.
  • Athletes and high-cognitive-load professionals (founders, surgeons, traders, academics, pilots) who want to protect peak cognitive output across their career.
  • People recovering from cognitive insults — long COVID, post-concussion, chemo-brain — where mitochondrial and neuroinflammatory mechanisms apply. These customers should also work with a clinician.
  • Vegetarians and vegans for whom omega-3, creatine, and B-vitamin cofactors are particularly important supplementation targets.
  • Customers running adjacent longevity protocols — NAD+, senolytics, mitochondrial — who want their brain pillar to be mechanism-distinct rather than redundant.

This collection is not for

  • People seeking acute "focus" effect on a specific afternoon. Try a coffee or accept that real cognitive protection works on weeks-to-months timescales.
  • People with active dementia diagnoses — supplements are not Alzheimer's treatment. The trials cited on this page are in non-demented or pre-clinical populations.
  • People taking interacting prescriptions (see interactions section) without first checking with their prescriber.
  • Pregnant or nursing women — pregnancy/lactation safety data is insufficient or lacking for several products on this page.
  • Children or adolescents under 18 — these products are dosed for adult brains.
  • People who want a "one pill that does everything" solution. The brain has at least four pillars; no single SKU covers them all.

Quality and sourcing standards

Every SKU on this page meets the same quality bar that makes a multi-decade brain protocol viable. The full standard is documented at Quality & Sourcing.

Identity and potency

  • Every active is identity-confirmed by HPLC, GC-MS, or comparable analytical methodology before lot release.
  • Every active is dosed at or above the trial-anchored dose printed on the label. Underdosed actives are the single biggest reason "supplements don't work" — we will not stock a SKU that fails this test.
  • Branded forms (KSM-66 ashwagandha, BioPerine piperine, NIAGEN-class NR) are used where the trial evidence is for the branded form specifically.

Contaminants and purity

  • Heavy-metal testing on every botanical lot — particularly relevant for ashwagandha, curcumin, and any soil-grown plant material.
  • Pesticide residue panels on imported botanicals; mycotoxin screening on grain-derived ingredients (relevant for spermidine wheat-germ extract); microbial limits per USP standard.
  • Allergen disclosure on every label (relevant: wheat-germ-derived spermidine, fish-oil-derived omega-3).

Manufacturing and country of origin

  • cGMP-registered manufacturing facilities. Excipient minimisation — capsule fill is the active, the carrier (often vegetable cellulose or rice flour), and as little else as the formulation tolerates.
  • Country of origin per active ingredient is listed for every catalog SKU at Ingredient Sourcing.

How to measure cognitive change — biomarkers and at-home tracking

"How will I know if it's working?" is the most common question we get on this collection. The honest answer is that the strongest cellular protection is structural and you will not feel it acutely. There are three categories of measurement that work, in increasing order of rigour.

Subjective tracking (free, low rigour, useful for trends)

  • Sleep latency and quality (Oura, Whoop, or paper journal).
  • Afternoon energy crash (1–10 scale, daily).
  • Word-finding fluency (subjective; useful in the >50 cohort).
  • Stress reactivity (1–10 daily check-in).

At-home cognitive testing (low cost, moderate rigour)

  • Cambridge Brain Sciences battery — measures working memory, reasoning, attention. Test at baseline, 3 months, and 6 months.
  • Stroop test (free online) — well-validated for executive function and processing speed.
  • n-back task (free online) — working memory load test.

Biomarker testing (higher cost, highest rigour)

  • hs-CRP, IL-6, TNF-α — systemic inflammation panel. Curcumin and omega-3 should bend these down within 8–12 weeks at clinically-studied doses.
  • Whole-blood NAD+ — direct readout of NAD+ precursor effect (Conze 2019 used this endpoint).
  • HOMA-IR (fasting glucose × insulin / 405) — insulin sensitivity. HOMA-IR > 2.5 is a brain-aging risk factor.
  • Lipid panel + ApoB — cardiovascular delivery to the brain.
  • Omega-3 Index — direct readout of membrane DHA status. Target ≥8%.
  • Homocysteine — single-best methylation-status biomarker. Target <9 µmol/L.

Common myths and corrections

Myth: "If a supplement doesn't make me feel sharper today, it isn't working."

The most-cited cognitive supplements (omega-3, curcumin, creatine, NR) measure their primary endpoints at 6–24 weeks for a reason. Acute "feel sharper today" is largely placebo, caffeine, or stimulant. Real cellular protection produces a slowly-widening separation from your future-self-without-the-stack — you will not notice it acutely.

Myth: "Higher dose is always better for the brain."

It isn't. PQQ above 30 mg/day shows diminishing returns. Pterostilbene above 250 mg/day raises LDL in some users (Riche 2013). High-dose antioxidants in the immediate post-workout window may blunt the hormetic ROS signal that drives mitochondrial biogenesis. The trial-anchored doses on this page are at the published efficacy floor, and pushing significantly higher is rarely the right move.

Myth: "If I take an NAD+ precursor, I don't need anything else."

NAD+ precursors raise the substrate pool. They do not build new mitochondria (PQQ does), they do not repair membranes (omega-3 does), they do not dampen neuroinflammation (curcumin does), and they do not induce autophagy (spermidine does). Single-pillar protocols miss most of the upstream targets.

Myth: "Resveratrol is the SIRT1 activator."

Resveratrol activates SIRT1 in vitro. Its bioavailability is poor (~70% first-pass metabolism) and many human trials at common doses (~100–500 mg/day) show small or no effect on cognitive endpoints. Pterostilbene is the methylated cousin with ~7× better bioavailability and a measurable BBB-crossing fraction. We stock trans-resveratrol for completeness, but if you can take only one for brain effect, pterostilbene is mechanistically stronger.

Myth: "Creatine is just for athletes."

Creatine has more replicated cognitive trials than almost any other compound on this page (Avgerinos 2018 meta-analysis, 16 RCTs). Vegetarians and older adults — not athletes — show the largest cognitive effects. The 5 g/day dose is the same.

Myth: "Coconut oil / MCT oil is the same as omega-3 for the brain."

It isn't. MCTs raise blood ketones, which the brain can burn — there is some evidence of acute cognitive effect in mild cognitive impairment. But MCTs do not provide DHA, do not get incorporated into synaptic membranes, and do not have the long-term randomised evidence that EPA/DHA omega-3 has. The two are complementary categories, not substitutes.

Myth: "If I sleep poorly, supplements can fix it."

They can soften the edges. They cannot replace the function of sleep. The glymphatic system clears amyloid-β during slow-wave sleep; chronic sleep restriction is one of the most-replicated risk factors for late-life cognitive decline. Ashwagandha and glycine help; they do not replace 7–9 hours of sleep.

Cost tiers — what each one buys you

Tier Monthly cost Pillars covered Best for
Tier 1 (Entry) ~$82 Substrate + Inflammation First-time customers, cost-sensitive, baseline brain protection
Tier 2 (Daily) ~$135 + Mitochondrial biogenesis + NAD+ Most customers; covers four pillars at moderate cost
Tier 3 (Full) ~$230 + Cellular cleanup + Resilience + SIRT1 Aggressive longevity stance; layered protection across all four pillars
+ NAD+ deep stack +$55–80 NMN dose escalation, methyl support Customers over 50 or running a 6-month NAD+ trial
+ Quarterly senolytic pulse +$33 (one weekend) Senolysis Anyone running Tier 2 or higher for >6 months
+ Antioxidant overlay +$50–90 Master antioxidant pool (GlyNAC, ALA, Astaxanthin) Higher oxidative-stress contexts: long flights, heavy training, urban pollution

The Tier 2 bundle is the right starting point for most customers. It is mechanism-complete on the four pillars except cellular cleanup and resilience, both of which can be added later as the protocol stabilises. Almost no one needs to start at Tier 3 on day one; the smarter pattern is to ladder up from Tier 1 → 2 → 3 over 6–12 months as you read your own response and biomarker data.

Frequently asked questions

How quickly will I notice anything?

Energy and sleep changes — typically 1–2 weeks. Sustained focus and word-finding — typically 6–12 weeks. Structural protection — multi-year and not subjectively detectable. The single biggest mistake customers make is judging a brain protocol at 2–4 weeks; most published trial endpoints are at 8–24 weeks.

Should I take Omega-3 with food?

Yes. EPA and DHA are fat-soluble; absorption roughly doubles with a meal containing 10–20 g of dietary fat versus on an empty stomach. Breakfast or dinner is fine; consistency matters more than time of day.

Should I load creatine?

Optional. Loading (20 g/day in 4×5 g doses for 5–7 days, then 5 g/day) reaches saturation in about a week. Skipping the loading phase and taking 5 g/day reaches the same saturation in about 28 days. Loading is faster but has more GI side effects; non-loading is the simpler default.

Can I take all these in the same morning?

Mostly yes. The exception is the antioxidant timing rule: high-dose antioxidants immediately after a workout may blunt mitochondrial biogenesis adaptation. The brain stack proper (Omega-3, Creatine, Curcumin, PQQ, NAD+ formula, Spermidine, Pterostilbene) is fine to take together at breakfast. Ashwagandha is the one product most customers move to dinner because of its sleep-supporting effect.

Why is your NR more expensive than other "NAD+" products on Amazon?

Two reasons. First, the SKU on this page uses patented (NIAGEN-class) NR — the same form used in Martens 2018 and most other published NAD+ trials. Second, we test every lot for identity and potency. Many "NAD+ supplements" on the open marketplace are nicotinamide (a B3 form, not NR) sold at NR pricing; we will not stock those.

Is NMN or NR better for the brain?

Genuinely open question. NR has more published human trial data; NMN has more recent industry interest and a few well-controlled trials (Yoshino 2021, Igarashi 2022). Mechanistically they enter the NAD+ salvage pathway at slightly different points. The catalog stocks both — see NAD+ Family.

Do I need TMG?

If your sustained NAD+ precursor dose is below 500 mg/day, no. At 600+ mg/day for months, yes — methyl-donor depletion is a real concern. TMG 1000 mg is cheap insurance.

Will Curcumin upset my stomach?

Capsule format minimises this. If you experience GI upset, take with a fatty meal. The piperine in BioPerine is what raises absorption — it can intensify the effect of some prescription meds, see the interactions section.

Can I take this stack while drinking coffee?

Yes. None of the products on this page have caffeine, and none of them have a documented adverse interaction with caffeine.

I am vegetarian/vegan. What changes?

Two notes. First, omega-3: vegan customers should look for an algal DHA source. Second, creatine: vegetarians have very low baseline creatine and tend to show the largest cognitive effects on supplementation — keep this product. Everything else on this page is vegan-compatible.

Can I take this stack alongside a statin or blood pressure medication?

The Curcumin + BioPerine entry has a CYP3A4 interaction note — most statins and several blood pressure medications metabolise through that pathway. Talk to your prescriber. Most other products on this page have no documented prescription-drug interactions at the labelled dose.

Do I need cycling or "off-time"?

Most actives on this page are designed for continuous use. The two exceptions are senolytics (pulsed quarterly, see Senolytics) and possibly NAD+ precursors at very high doses. Curcumin, omega-3, creatine, PQQ, spermidine, and ashwagandha do not require cycling.

What if I am over 70?

Start gently. Tier 1 for the first 4–6 weeks. Add NAD+ precursor (Tier 2) only after baseline tolerance is established. Senolytic pulses in this cohort should be discussed with a clinician given concomitant medications.

What if it doesn't work for me?

The catalog backs every order with a 30-Day Keep-the-Bottle Guarantee — full refund, original shipping refunded, no return required.

Reading list and primary references

Selected primary trials and reviews behind the dose recommendations on this page. One strong citation per active so a curious customer can read the underlying evidence directly.

Omega-3 EPA/DHA

  • Yurko-Mauro et al. (MIDAS), 2010 — 900 mg DHA/day, 24 weeks, improved learning and memory in older adults.

Creatine

  • Avgerinos et al. 2018 — meta-analysis of 16 RCTs, cognitive endpoints in healthy adults.

Curcumin

  • Small et al. 2018 — 90 mg bioavailable curcumin × 2/day, 18 months: memory, attention, amyloid/tau PET reductions in 40 non-demented adults.

PQQ

  • Itoh et al. 2016 — 20 mg/day, 12 weeks, cognitive task performance and fMRI activation in older adults.

Spermidine

  • Kiechl et al. 2018 — Bruneck cohort, dietary spermidine and all-cause mortality.
  • Schwarz et al. 2018 (SmartAge) — spermidine and memory in at-risk older adults.

NR / NMN / NAD+

  • Martens et al. 2018 — 500 mg NR × 2/day, 6 weeks, +60% NAD+ in older adults, lowered SBP.
  • Conze et al. 2019 — dose-response of NR (100–1000 mg/day) on whole-blood NAD+.

Pterostilbene

  • Riche et al. 2013 — 100–250 mg/day, 6–8 weeks, hypercholesterolaemic adults.

Ashwagandha KSM-66

  • Chandrasekhar et al. 2012 — 300 mg × 2/day, 60 days, −27.9% morning cortisol.
  • Ng et al. 2020 — 600 mg/day, 8 weeks, sleep latency and quality.

Background — brain aging hallmarks

  • López-Otín et al. 2013 / 2023 — "The Hallmarks of Aging" — the foundational framework.
  • Heneka et al. 2015 — neuroinflammation in Alzheimer's pathology (Lancet Neurology).

Sister collections

Reference pages

Policies

Disclaimer: The statements on this page have not been evaluated by the FDA. The products on this page are not intended to diagnose, treat, cure, or prevent any disease. The cited trials are educational, not medical advice. Consult your physician before starting any supplement if pregnant, nursing, on prescription medication, or with a serious condition.
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