PQQ 20mg | Mitochondrial Biogenesis Activator | Pyrroloquinoline Quinone for Cellular Energy & Brain

The mitochondrial biogenesis layer most longevity stacks miss

30-second answer: Pyrroloquinoline quinone (PQQ) is the most direct nutritional lever known for mitochondrial biogenesis — the creation of new mitochondria inside existing cells. Other longevity ingredients support the mitochondria you already have (CoQ10), recycle the broken ones (Urolithin A), or supply the energy currency they run on (NMN, Resveratrol). PQQ is the only widely-studied compound that activates PGC-1α — the master transcription factor that turns on the genes for building new mitochondria — through the same upstream signaling network that exercise and caloric restriction work through. One 20mg capsule daily with a fat-containing meal. Most users notice cognitive effects in 4–8 weeks; the mitochondrial-density change is silent and biological, on the order of 3–6 months.

The mitochondrial biogenesis problem (and why most stacks ignore it)

Walk through any serious longevity stack and the mitochondrial coverage will look something like this: NMN or NR to raise NAD⁺, CoQ10 to support the electron-transport chain, sometimes Urolithin A to clear damaged mitochondria via mitophagy, sometimes Resveratrol or Spermidine to support sirtuins and autophagy. That covers fuel, machinery, cleanup, and renewal signaling. What it doesn't cover is population — the actual number of working mitochondria inside each cell.

And mitochondrial number is one of the most measurable things that declines with age. By the seventh decade of life, mitochondrial density in skeletal muscle is roughly half of what it was at twenty (Conley et al., Journal of Physiology, 2000). The same trend appears in cardiac muscle, neurons, hepatocytes, and oocytes. You can have perfectly maintained NAD⁺ levels and pristine CoQ10 status, but if your cells are running on a thinned-out mitochondrial population, they're producing less ATP per unit of tissue, generating more reactive oxygen species per unit of work, and failing earlier under load. This is why people in their seventies fatigue faster than people in their thirties even when their hemoglobin and resting metabolic rate look identical: it isn't fuel delivery, it's how many engines the cells have left.

PQQ is the most direct nutritional lever for this layer. The molecule was discovered in the 1970s as a redox cofactor in bacterial dehydrogenases, but its biological relevance for mammals only became clear in the 1990s when PQQ-deficient diets were shown to cause growth failure, immunosuppression, infertility, and dramatic loss of mitochondrial content in mice — and crucially, that all of these effects could be reversed by restoring PQQ to the diet (Steinberg et al., Experimental Biology and Medicine, 1994; Killgore et al., Science, 1989). The mechanism turned out to involve PGC-1α (the master regulator of mitochondrial biogenesis), CREB, and a series of downstream genes for mitochondrial DNA replication and oxidative phosphorylation — the same longevity-relevant signaling network that resveratrol, NMN, and caloric restriction work through, but PQQ enters at a different node.

The first major human supplementation study (Harris et al., The Journal of Nutritional Biochemistry, 2010) showed measurable increases in mitochondrial-related gene expression and reductions in plasma C-reactive protein in healthy adults after eight weeks of PQQ supplementation. A 2013 follow-up showed reductions in oxidative-damage markers (8-isoprostane, methylated lysines) and improvements in mitochondrial-related metabolites (Harris et al., 2013). Subsequent Japanese trials extended the cognitive results — Nakano et al. (2009, 2012) showed improvements in higher cognitive function in middle-aged and older adults, with the effect amplified when PQQ was combined with CoQ10.

How PQQ actually works inside the cell

1. PGC-1α activation — mitochondrial biogenesis. PQQ phosphorylates and activates CREB (cAMP response element-binding protein), which in turn activates PGC-1α — the transcription co-activator that turns on the entire genetic program for building new mitochondria, including nuclear respiratory factors NRF1 and NRF2 and mitochondrial transcription factor A (TFAM). This is the same pathway exercise activates. Sometimes called "exercise in a capsule" — that's an oversimplification because exercise also drives capillary growth, fiber-type changes, and a hundred other adaptations PQQ does not — but at the molecular level of biogenesis signaling, the description is more accurate than not.

2. Direct redox cofactor activity — durable antioxidant inside the mitochondrial environment. PQQ itself is one of the most catalytically efficient redox cofactors known. It can cycle through approximately 20,000 redox conversions before being consumed, compared with roughly four for ascorbic acid. That makes it an unusually durable antioxidant, particularly inside the lipid-bilayer environment of the inner mitochondrial membrane where most water-soluble antioxidants can't reach effectively. This complements rather than overlaps with CoQ10, which is the inner-membrane antioxidant for the lipid phase but does not catalyze cycle reactions in the same way.

3. NGF (nerve growth factor) upregulation — neuronal support. PQQ has been shown in cell-culture studies to stimulate NGF mRNA expression and protein release from astrocytes (Yamaguchi et al., Bioscience, Biotechnology, and Biochemistry, 1993). NGF supports neuronal survival, axonal growth, and synaptic plasticity. This appears to be part of why the most consistent subjective report from PQQ users is improved mental clarity and reduced brain fog rather than the muscular energy effect more typical of CoQ10 — the brain has the highest mitochondrial density and the highest NGF dependence of any organ system.

4. Synergy with CoQ10. The Nakano et al. (2009) trial in Functional Foods in Health and Disease tested PQQ alone (20mg/day), CoQ10 alone (300mg/day), and the combination in adults with cognitive complaints. Both compounds produced individual improvements; the combination produced the largest improvements in attention, working memory, and processing speed. The mechanistic explanation is direct: PQQ drives the creation of new mitochondria, CoQ10 functionally populates them as the obligate cofactor for Complex I, II, and III of the electron transport chain. Building more engines without filling them with the cofactor that makes them run is half a stack; supporting existing engines without making more is the other half. Together is the full picture.

5. mtDNA protection and biogenesis maintenance. Beyond turning on biogenesis, PQQ has been shown to reduce oxidative damage to mitochondrial DNA itself (Stites et al., Journal of Nutrition, 2006; Bauerly et al., PLOS ONE, 2011). Mitochondrial DNA is more vulnerable than nuclear DNA because it lacks histones, has fewer repair pathways, and sits in the most oxidative environment in the cell. Protecting mtDNA preserves the genetic blueprint for the new mitochondria PQQ is signaling the cell to build — without that, biogenesis would just produce defective copies.

Where PQQ fits in your stack — the four-layer mitochondrial protocol

Mitochondrial health is best understood as four distinct layers, each with a different lever:

• Population (how many you have): PQQ — biogenesis via PGC-1α / CREB / NRF1 / TFAM. Builds new mitochondria.
• Function (how well they run): CoQ10 / ubiquinol — Complex I, II, III electron-transport cofactor. Powers existing mitochondria.
• Cleanup (removing broken ones): Urolithin A — mitophagy via PINK1 / Parkin. Recycles defective mitochondria.
• Fuel (the energy currency they run on): NMN, NR, Liposomal NAD+, Resveratrol — NAD⁺ production, sirtuin activation. Supplies the substrate the mitochondria spend.

Most stacks cover one or two of these. The strongest mitochondrial protocols cover all four. PQQ is usually the missing piece because it's the newest of the major longevity ingredients to reach mainstream attention — the molecule was only formally recognized as a vitamin-like compound in 2003 (Kasahara & Kato, Nature), and the first major human supplementation study didn't appear until 2010. It's also the only one of the four that operates at the gene-expression level rather than the biochemical-substrate level, which is why the time-to-effect is measured in weeks-to-months rather than days.

One implication of the four-layer model worth naming directly: the layers are not interchangeable. NMN does not cover what PQQ covers. Urolithin A does not cover what PQQ covers. Stacking three NAD⁺ precursors together does not address mitochondrial number. If your stack already includes NMN, CoQ10, and Urolithin A, PQQ is the highest-leverage single addition you can make, because it's the only one that increases the population of working mitochondria the other three are supporting.

Why PQQ matters for fertility and reproductive health

Of all the cells in the human body, the oocyte (egg cell) contains by far the most mitochondria — roughly 100,000 of them, compared with about 1,000–2,000 in a typical somatic cell. That density is not accidental. The early embryo runs entirely on mitochondrial ATP from the mother's egg until implantation; the sperm contributes essentially nothing to the embryo's mitochondrial population (and what little it does contribute is actively destroyed by ubiquitin-mediated degradation in the early embryo).

The downstream implication is that mitochondrial quality and quantity in the oocyte is one of the strongest predictors of fertility outcomes, and the most consistent biological reason that egg quality declines with maternal age. The same logic applies to sperm motility, which is almost entirely mitochondrial-ATP-dependent — the sperm tail is essentially a mitochondrial engine wrapped in a cytoskeletal scaffold; sperm count and morphology speak to genetic health, but motility speaks to mitochondrial bioenergetics.

This is why CoQ10 (or its reduced form ubiquinol) has been a mainstream recommendation in reproductive endocrinology clinics for over a decade and is now standard adjunctive therapy in many IVF protocols. PQQ extends the same logic at the population level: rather than just supporting the function of existing mitochondria, it actively stimulates the creation of new ones in tissues with high turnover. That's the rationale for stacking PQQ with CoQ10 in a fertility-focused protocol — the same logic that drives the rest of the longevity stack, but with the reproductive system as the primary target tissue.

PQQ has not yet been studied head-to-head as a fertility intervention with the same depth as CoQ10, so this section is a mechanistic argument rather than a clinical-evidence claim. If you are actively trying to conceive, undergoing IVF, or working with a reproductive endocrinologist, the addition of any new supplement to your protocol should be discussed with that specialist before you start. We are providing the mechanism. Your clinician knows your case.

Brain and cognitive support — the most consistent subjective effect

The brain is roughly 2% of body weight but consumes around 20% of the body's resting energy — a per-gram metabolic rate higher than any other tissue. That makes it acutely sensitive to mitochondrial population and function. It is also one of the tissues in which PQQ's NGF-upregulating effect is most relevant: NGF supports the survival of cholinergic neurons in the basal forebrain, sympathetic neurons, and nociceptive sensory neurons, all of which are vulnerable to age-related dropout.

The Nakano et al. (2009 and 2012) trials measured cognitive performance using the Stroop test, attention-shift tasks, and short-term memory assessments in middle-aged and older adults. PQQ at 20mg/day for 12 weeks produced measurable improvements in attention and processing-speed measures versus placebo. The PQQ + CoQ10 combination amplified the effect. A separate trial in adults with subjective cognitive complaints (Itoh et al., Journal of Clinical Biochemistry and Nutrition, 2016) showed reductions in self-reported fatigue and improvements in sleep quality and concentration.

None of this is a claim of dramatic cognitive enhancement and PQQ is not a stimulant. The signal across these studies is consistent with the mechanism: gradual improvement in mitochondrial-density-dependent functions in tissues that are already working, with the largest effects in people whose baseline cognitive function is below their personal optimum (afternoon brain fog, sleep-disruption-driven fatigue, age-related processing-speed decline). If you are looking for an acute focus aid, you want caffeine, theanine, or a racetam — not PQQ. If you are looking to add the layer that compounds quietly over months and supports the brain's mitochondrial population for years, PQQ is the foundational tool.

Cardiovascular and metabolic effects

The heart is the second-most mitochondria-dense tissue in the body — cardiomyocytes are roughly 30–35% mitochondria by volume. That density is what allows the heart to contract approximately 100,000 times per day at oxidative-phosphorylation-driven efficiency. It is also why mitochondrial dysfunction shows up clinically as heart failure with preserved ejection fraction, exercise intolerance, and the fatigue patterns associated with chronic cardiovascular disease.

The Harris 2010 trial showed a measurable reduction in plasma C-reactive protein (CRP) — a systemic inflammation marker associated with cardiovascular risk — after eight weeks of PQQ supplementation. The 2013 Harris follow-up showed reduction in oxidative damage markers including 8-isoprostane (a marker of lipid peroxidation associated with atherosclerosis) and methylated lysines (a marker of mitochondrial protein damage). A 2015 Chinese trial (Zhu et al., Cardiovascular Drugs and Therapy) studied PQQ in patients with ischemia-reperfusion injury and found cardioprotective effects mediated by activation of PGC-1α and reduction of oxidative damage in cardiac tissue.

None of this is a claim of cardiovascular treatment. PQQ is not a substitute for any prescribed cardiac therapy, lipid-lowering protocol, or blood-pressure management. It is a long-horizon mitochondrial support tool whose cardiovascular relevance derives from the same general mechanism that drives its skeletal-muscle and brain effects: cardiomyocytes are mitochondria-dense, mitochondria respond to PGC-1α-mediated biogenesis signaling, PQQ activates that pathway, and the downstream effects on inflammation and oxidative stress are measurable.

What's in this bottle

• Pyrroloquinoline quinone disodium salt (PQQ): 20mg — pharmaceutical-grade BioPQQ™-grade material. The disodium salt is the chemical form used in essentially all of the major published clinical trials and the only form with established human oral-bioavailability data. The exact dose used in the Harris 2010 mitochondrial-density study and the Nakano 2009 and 2012 cognitive studies.
• BioPerine® black pepper extract: 5mg — standardized to 95% piperine. Piperine inhibits the gut and liver enzymes (UGT1A1, CYP3A4) that break down many fat-soluble cofactors, including the ones PQQ is most often stacked with: CoQ10, curcumin, vitamin D, astaxanthin. PQQ itself has reasonable oral bioavailability and does not strictly need piperine; the BioPerine here supports the stack PQQ is intended to operate inside.
• Vegetable cellulose capsule. No magnesium stearate. No titanium dioxide. No artificial colors. No silicon dioxide. No fillers, dyes, or excipients beyond the active ingredients.
• 60 capsules per bottle — two-month supply at the standard daily dose.

How to take it

Daily protocol (recommended): 1 capsule (20mg) taken in the morning with a fat-containing meal. PQQ is a small molecule with reasonable water solubility, but absorption is improved when taken alongside dietary fat — the same general principle that applies to CoQ10, curcumin, vitamin D, vitamin K, and astaxanthin. Morning rather than evening because the cognitive-clarity and energy-related downstream effects are more useful during the active part of your day; PQQ is not sedating but the mitochondrial-density signaling is most aligned with daytime metabolic demand.

Stacking notes: PQQ pairs naturally with CoQ10 — take both with the same fat-containing meal. It also stacks logically with NMN, Urolithin A, Resveratrol, Spermidine, Fisetin, Quercetin, TMG, Apigenin, and the rest of the True Health Protocol mitochondrial and longevity stack. Each works on a different layer (population, function, cleanup, fuel, signaling), so there is no redundancy and no published evidence of negative interaction within this combination set. PQQ is also compatible with most cardiovascular medications and standard multivitamins; the antioxidant and biogenesis effects do not interfere with statins, antihypertensives, or thyroid replacement at the doses studied.

Time to effect: Subjective cognitive effects (mental clarity, reduced afternoon fatigue, sharper attention) are typically reported between weeks 4 and 8. The underlying mitochondrial-density change is much slower — the Harris 2010 study used an 8-week protocol to show changes in mitochondrial-related gene expression and inflammation markers; full effects at the cellular density level likely require 3–6 months of continuous use. The compounds that work via gene expression (PQQ, NMN, Resveratrol, Spermidine) all share this profile: slower onset, longer-duration changes, and best results at consistent daily dosing rather than intermittent or pulsed protocols.

Cycling vs. continuous use: Unlike senolytics (Fisetin, Quercetin) which have a published rationale for monthly pulsing, PQQ is most effective as a continuous daily protocol. The biogenesis signaling is sustained, not pulsatile, and the underlying tissue change accumulates with continued exposure. There is no published evidence that PQQ requires breaks, develops tolerance, or downregulates its own pathway over time.

Who should not take this

• Pregnant or breastfeeding. PQQ has not been studied in human pregnancy. Animal studies in PQQ-deficient diets show severe reproductive and growth effects (which is part of why PQQ is sometimes considered vitamin-like), but supplementation safety above dietary background levels in human pregnancy has not been established. Do not use without medical supervision.
• Under 18. PQQ has not been studied in children or adolescents. Pediatric mitochondrial dysfunction is its own clinical area and any supplementation should be managed by a specialist.
• Anyone on chemotherapy or other treatment that depends on mitochondrial dysfunction in target cells. Some cancer therapies work by exploiting mitochondrial vulnerability in malignant cells; supporting mitochondrial biogenesis and antioxidant capacity during such treatment may interfere with therapeutic intent. Discuss with your oncology team before adding any antioxidant or mitochondrial supplement during active cancer treatment.
• Anyone scheduled for surgery within two weeks. The mild antioxidant activity of PQQ may theoretically affect surgical bleeding response or anesthesia metabolism. Stop two weeks before any planned procedure as a standard precaution and resume after your surgeon clears post-operative supplementation.
• Anyone with a known sensitivity to quinone-class compounds. PQQ is a quinone — chemically related to ubiquinone (CoQ10) and the K-vitamins. Rare individual sensitivities have been reported, typically presenting as nausea or mild headache at higher doses. Start at one capsule and monitor.
• Anyone on warfarin or other anticoagulant therapy. No published evidence of direct interaction, but quinone-class compounds participate in vitamin-K-related coagulation chemistry. If you are on warfarin, your INR should be monitored when adding any new antioxidant or mitochondrial supplement; talk with your prescriber first.

Frequently asked questions

Q: How is PQQ different from CoQ10?
They work on completely different layers of mitochondrial health, and the cleanest way to think about them is as the population-versus-function pair. CoQ10 sits inside the inner mitochondrial membrane and shuttles electrons through Complex I, II, and III of the electron transport chain — it is a functional cofactor for ATP production in existing mitochondria. PQQ doesn't do that. PQQ acts upstream at the gene-expression level, signaling the cell to build more mitochondria via PGC-1α activation. They're complementary, not redundant. The Nakano 2009 trial directly compared the two and found that the combination outperformed either alone on cognitive endpoints — that result is the empirical case for stacking them. If you can only take one, your decision should follow your symptom profile: CoQ10 if your concern is energy / heart / statin support, PQQ if your concern is age-related cognitive decline / long-term mitochondrial density.

Q: How is PQQ different from Urolithin A?
Urolithin A drives mitophagy — the controlled clearance of damaged mitochondria via the PINK1 / Parkin pathway. It removes broken units. PQQ drives biogenesis — the creation of new mitochondria via PGC-1α / CREB / NRF1. It builds new units. Together they form a renewal cycle: clear the broken ones (Urolithin A), build new ones (PQQ), keep the rest running (CoQ10), and supply the energy currency they all spend (NMN / NAD⁺). This is the four-layer model and stacking all four is the most complete mitochondrial protocol we publish.

Q: How is PQQ different from NMN, NR, or other NAD⁺ precursors?
NMN and NR raise NAD⁺, the substrate that mitochondria spend during oxidative phosphorylation and that sirtuin enzymes consume during cellular signaling. NAD⁺ is the energy currency. PQQ doesn't increase NAD⁺ — it increases the number of mitochondria that spend NAD⁺. If NAD⁺ is the dollar bills, PQQ is the staff that earns and spends them. Both layers matter; neither replaces the other. The Liposomal NAD+ Ultimate, Pure NMN, NMN 1000mg, NR Hard Capsules, NAD+ Daily Boost, Liquid NAD+, NAD+ Pure Focus, and NAD+ 5-in-1 in this catalog all address the fuel layer; PQQ addresses the population layer.

Q: Can I just get PQQ from food?
Technically yes — PQQ is present in trace amounts in fermented soybeans (natto), parsley, green tea, papaya, kiwi, and a few other plant foods. Practically no — the typical Western diet provides roughly 0.1–0.4mg per day, while the supplementation studies use 10–20mg per day. You'd need to eat several pounds of natto daily to reach the studied dose, which isn't a realistic protocol for most people, and the natto fermentation profile is not well tolerated by Western palates. The dose at which the published cognitive and biogenesis effects are seen is fifty to two hundred times the typical dietary intake. This is one of the cleaner "supplementation makes sense" cases in nutrition science.

Q: Is 20mg the right dose?
20mg per day is the dose used in the most-cited human studies, including the Harris 2010 mitochondrial-density / inflammation study, the Nakano 2009 PQQ + CoQ10 cognitive study, and the Itoh 2016 fatigue/sleep trial. Higher doses (40mg) have been used safely in some protocols but did not produce proportionally larger effects on the published endpoints; lower doses (10mg) underperformed. 20mg is the dose the published research converges on as the empirical sweet spot for healthy adults. If you have specific clinical reasons (mitochondrial myopathy, severe cognitive complaint, fertility protocol) to pursue a higher or lower dose, that decision should be made with a specialist.

Q: Will I feel anything from PQQ on day one?
Probably not. PQQ works by changing what genes your cells transcribe — that takes weeks. Most users report no immediate effect, then notice gradual improvements in mental clarity and afternoon energy somewhere between weeks 4 and 8. If you're looking for a same-day stimulant effect, PQQ is the wrong tool — caffeine, theanine, tyrosine, or the prescription nootropics will all be faster. PQQ is the long-horizon mitochondrial-density layer that compounds over months and supports the rest of your stack quietly. The clinical literature is consistent on this profile: gene-expression interventions take time and produce changes that are larger than they feel on any given day.

Q: Can I take PQQ with my fertility protocol?
PQQ is increasingly included in fertility-focused supplement protocols specifically because of its mitochondrial-biogenesis mechanism — oocytes contain roughly 100,000 mitochondria and sperm motility is almost entirely mitochondrial-ATP-dependent. It is commonly stacked with CoQ10 (or its reduced form, ubiquinol) in this context. That said, fertility is a medical area where any supplement should be discussed with your reproductive endocrinologist or fertility specialist, particularly if you are undergoing IVF or any active medical treatment. We provide the mechanistic rationale; your clinician knows your case, your medications, and your timeline.

Q: Why does it need BioPerine?
PQQ on its own has reasonable oral bioavailability — better than most flavonoids and roughly comparable to CoQ10 in lipid form. The BioPerine in this formula isn't strictly required for PQQ absorption itself; it's there to support the broader fat-soluble cofactor stack you're likely taking PQQ alongside (CoQ10, curcumin, vitamin D, vitamin K, astaxanthin) by inhibiting the gut and liver enzymes (UGT1A1, CYP3A4) that break those compounds down before they reach circulation. Same logic and same 5mg dose as the BioPerine in our Curcumin, Apigenin, Quercetin, and Fisetin formulas — the BioPerine works for the stack, not the single compound.

Q: What does the science actually show about mitochondrial number and aging?
The single best summary is the Conley et al. 2000 Journal of Physiology paper, which used 31-phosphorus magnetic resonance spectroscopy in living human muscle to show that mitochondrial oxidative capacity in skeletal muscle declines roughly 50% between the third and seventh decades of life. Similar declines have been documented in cardiac muscle (Lesnefsky et al.), in brain tissue (Manczak et al.), and in oocytes (Wang et al.). The decline is real, measurable, and one of the more consistent biological signatures of aging. PQQ is one of the cleanest direct nutritional levers known for that specific endpoint. It does not stop the decline, but the supplementation studies show measurable shifts in the mitochondrial-related gene-expression and inflammation signatures that track with the decline.

Q: Can I stack PQQ with my existing CoQ10?
Yes — that is the most-evidence-supported stacking pattern for PQQ, dating back to the Nakano 2009 trial. The two compounds work on adjacent layers: PQQ creates new mitochondria, CoQ10 functionally populates them as the obligate Complex I/II/III cofactor. Take both with the same fat-containing meal in the morning. Standard CoQ10 stacking dose is 100–400mg/day; our CoQ10 product is 400mg per capsule, which is in the upper range of the standard published dose. There is no published evidence of any negative interaction between PQQ and CoQ10 at the doses used here.

Q: What's the difference between BioPQQ™ and generic PQQ?
BioPQQ™ is the brand name for fermentation-derived PQQ disodium salt produced by Mitsubishi Gas Chemical in Japan, which is the form used in essentially all of the published human clinical trials. Generic PQQ refers to chemically synthesized PQQ from any other source. The disodium-salt chemistry is identical between the two; the difference is the manufacturing process and the supply-chain quality assurance. We use pharmaceutical-grade BioPQQ™ disodium salt because that is the form with the published bioavailability and clinical-effect data; if you compared a research paper on "PQQ supplementation" to the bottle in your hand, this is the form you would want to match.

Q: Are there any reported side effects?
At the 20mg/day dose, published trials report essentially no significant adverse effects — the safety profile in healthy adults is very clean. At higher doses (60mg+) there are isolated reports of mild gastrointestinal discomfort, headache, or transient sleep changes. Standing recommendations: start at one capsule per day, take with food, and if you tolerate it after a week, that is your protocol. There is no need to escalate above 20mg unless directed by a specialist.

Quality & sourcing

BioPQQ™-grade pyrroloquinoline quinone disodium salt, manufactured in a GMP-certified facility, third-party tested for identity, purity, heavy metals (lead, arsenic, cadmium, mercury), residual solvents, and microbial contamination (total plate count, yeast and mold, E. coli, Salmonella). No magnesium stearate. No titanium dioxide. No artificial colors. No silicon dioxide. No fillers, dyes, or excipients beyond the active ingredients. Vegan capsule (vegetable cellulose). Bottle is BPA-free. Made in the USA in a cGMP-certified facility.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult a healthcare professional before use, especially if you are pregnant, nursing, taking medication, scheduled for surgery, undergoing cancer treatment, or have an ongoing medical condition. Individual results vary. The references to clinical trials in this description are provided for mechanistic context and are not claims of treatment efficacy for any specific disease. PQQ is a dietary supplement, not a medication, and does not substitute for any prescribed therapy.