Ergothioneine Research Guide
Full name: L-Ergothioneine
A rare sulfur-containing amino acid derived from mushrooms and certain bacteria, dubbed "the longevity vitamin." The body has a dedicated transporter (OCTN1) that concentrates it in tissues under oxidative stress, and low levels correlate with age-related disease.
How Ergothioneine Works
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.
Dosing Protocol
- Typical dose: 5-25 mg per day
- Frequency: Once daily
- Duration: Ongoing
- Route: Oral capsule
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
Potential Side Effects
- No established side effects
- Considered very well tolerated
Research Citations
- Ergothioneine as a longevity vitamin (2020) - Proposed as a diet-derived compound whose deficiency is linked to increased risk of age-related chronic disease.
- Low ergothioneine predicts cardiovascular risk (2019) - Higher plasma ergothioneine was associated with lower cardiovascular and all-cause mortality in a large cohort.
Related Detox & Antioxidant Compounds
View full Ergothioneine profile with 3D molecule viewer →