Ergothioneine vs PQQ
A side-by-side research comparison of Ergothioneine and PQQ across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Ergothioneine | PQQ |
|---|---|---|
| Full name | L-Ergothioneine | Pyrroloquinoline Quinone (BioPQQ) |
| Category | Detox & Antioxidant | Detox & Antioxidant |
| Status | OTC supplement | Dietary supplement (GRAS) |
| Mechanism | Accumulates via the OCTN1 transporter in mitochondria and other high-stress cellular compartments, where it scavenges reactive oxygen species, chelates metals, protects DNA and mitochondria, and preserves other antioxidants. | 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. |
| Molecular weight | 229.30 Da | 330.21 Da |
| Half-life | Very long (weeks; retained in tissue) | ~3-5 hours |
| Bioavailability | Good oral via OCTN1 transporter | ~60% oral |
| Typical dose | 5-25 mg per day | 10-20 mg |
| Frequency | Once daily | Daily |
| Route | Oral capsule | Oral capsule |
Ergothioneine reported benefits
- Potent cellular and mitochondrial antioxidant
- Long tissue retention
- DNA and lipid protection
- Neuroprotective potential
- Associated with lower age-related disease risk
- Anti-inflammatory
PQQ reported benefits
- Mitochondrial biogenesis (new mitochondria)
- Potent antioxidant (catalytic)
- Nerve growth factor stimulation
- Improved sleep quality
- Enhanced cognitive function
- Cellular energy optimization
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Research and educational reference only. Not medical advice.