Rankings / Mitochondria & Cellular Energy
Pyrroloquinoline quinone (PQQ)
Mitochondria & Cellular Energy · Mitochondrial biogenesis cofactor
Tier B-
Bottom line
Read Off Label grades Pyrroloquinoline quinone (PQQ) as B- (6.2/10) based on weak-moderate evidence, low-moderate benefit magnitude, and a low-risk safety profile.
Popular in mitochondrial-focused biohacker stacks (often paired with CoQ10 and Urolithin A).
Studied, labeled, or reported-use context: 10-20 mg/day; some products use BioPQQ or MitoQuinone-branded forms — OTC; not individualized guidance.
What the evidence says
Popular in mitochondrial-focused biohacker stacks (often paired with CoQ10 and Urolithin A). Rucker 2009 PNAS argued PQQ might be a vitamin (deficiency caused growth defects in mice) but FDA has not designated it as essential. Modest human RCT base — most positive trials are small and from Japanese cosmetic ingredient sponsors. Human evidence is limited to small studies of mitochondrial and fatigue-related biomarkers; clinical outcome evidence is absent.
Mechanism
Redox-active quinone cofactor; modulates PGC-1α (master regulator of mitochondrial biogenesis), CREB, and SIRT1/3; antioxidant; promotes mitochondrial number and density in cell culture; small fraction of dietary intake from fermented foods, kiwi, parsley, green tea
Studied, labeled, or reported dose & route
10-20 mg/day; some products use BioPQQ or MitoQuinone-branded forms
This records doses and routes described in studies, approved labeling, clinical practice, or documented use. It is not individualized guidance and does not establish safety; context changes with indication, formulation, health history, monitoring, and other medicines.
Citations
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Common questions
- What does the evidence show about Pyrroloquinoline quinone (PQQ)'s effects?
- Read Off Label rates the evidence for Pyrroloquinoline quinone (PQQ) as Weak-Moderate and the benefit magnitude as low-moderate, producing an overall grade of B- (6.2/10). Popular in mitochondrial-focused biohacker stacks (often paired with CoQ10 and Urolithin A).
- What safety findings are reported for Pyrroloquinoline quinone (PQQ)?
- Pyrroloquinoline quinone (PQQ) has a low risk profile in the database. Low (very well-tolerated in trials up to 60 mg/day; theoretical concern about pro-oxidant activity at very high doses) Legal status: OTC.
- What doses or routes are reported for Pyrroloquinoline quinone (PQQ)?
- 10-20 mg/day; some products use BioPQQ or MitoQuinone-branded forms This is context from studies, approved labeling, clinical practice, or documented use; it is not individualized guidance and does not establish safety.
- How does Pyrroloquinoline quinone (PQQ) work?
- Redox-active quinone cofactor; modulates PGC-1α (master regulator of mitochondrial biogenesis), CREB, and SIRT1/3; antioxidant; promotes mitochondrial number and density in cell culture; small fraction of dietary intake from fermented foods, kiwi, parsley, green tea
This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.