PQQ vs Quercetin
A side-by-side research comparison of PQQ and Quercetin across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | PQQ | Quercetin |
|---|---|---|
| Full name | Pyrroloquinoline Quinone (BioPQQ) | Quercetin (Flavonoid Senolytic) |
| Category | Detox & Antioxidant | Detox & Antioxidant |
| Status | Dietary supplement (GRAS) | OTC supplement |
| Mechanism | Activates PGC-1α (master mitochondrial biogenesis regulator) via CREB phosphorylation. Catalytic antioxidant that undergoes 20,000+ redox cycles vs one-time use of vitamin C. Stimulates NGF synthesis for neuroprotection. | Selectively induces apoptosis in senescent cells by inhibiting pro-survival (SCAP/BCL) pathways, especially when paired with dasatinib. Also scavenges free radicals, inhibits mast-cell histamine release, and modulates NF-kB inflammatory signaling. |
| Molecular weight | 330.21 Da | 302.24 Da |
| Half-life | ~3-5 hours | ~11-28 hours |
| Bioavailability | ~60% oral | Low; improved by phytosome/bromelain formulations |
| Typical dose | 10-20 mg | 500-1000 mg per day (daily) or high-dose pulsed (senolytic) |
| Frequency | Daily | Daily or intermittent |
| Route | Oral capsule | Oral capsule |
PQQ reported benefits
- Mitochondrial biogenesis (new mitochondria)
- Potent antioxidant (catalytic)
- Nerve growth factor stimulation
- Improved sleep quality
- Enhanced cognitive function
- Cellular energy optimization
Quercetin reported benefits
- Senolytic (clears senescent cells)
- Antioxidant and anti-inflammatory
- Natural antihistamine
- Cardiovascular support
- Immune modulation
- Synergy with fisetin/dasatinib
Related comparisons
Research and educational reference only. Not medical advice.