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home > FAQ > New Product > What is Ergothioneine? Benefits for Cellular Protection and Antioxidant Support

What is Ergothioneine? Benefits for Cellular Protection and Antioxidant Support

2026-04-15

What is Ergothioneine?

Ergothioneine (EGT) is a naturally occurring amino acid derivative found in certain mushrooms, beans, and other foods. It is a unique antioxidant that is specifically transported into cells via the OCTN1 transporter. Ergothioneine accumulates in tissues with high oxidative stress and plays a crucial role in cellular protection and mitochondrial health.

Key Health Benefits

Cellular Protection: Protects cells from oxidative damage and free radicals
Mitochondrial Support: Supports healthy mitochondrial function and energy production
Anti-Aging: Supports healthy aging at the cellular level
Brain Health: Supports cognitive function and neuroprotection
Skin Health: Protects skin from UV damage and supports healthy aging

Main Applications

Anti-aging and longevity supplements
Cellular health formulations
Brain health and cognitive support
Sports nutrition and recovery
Skin health and beauty supplements

Why Choose Greensky Bio Ergothioneine?

High purity Ergothioneine (99%+)
Natural fermentation production
Third-party tested for identity and purity
GMP and ISO22000 certified manufacturing
Superior bioavailability and cellular uptake

Product Specifications

Parameter	Specification
Product Name	L-Ergothioneine (EGT)
Molecular Formula	C9H15N3O2S
Molecular Weight	229.30 g/mol
Purity	99%+ (HPLC)
Appearance	White to off-white powder
Test Method	HPLC
CAS Number	497-30-3

Packaging & Storage

Packaged in 1kg aluminum foil bags or 25kg drums. Store in a cool, dry place away from light and moisture. Shelf life: 24 months when properly stored.