Snapshot
- Overview
- A stable antioxidant that helps skin look fresher and more resilient.
- Category
- Antioxidant, Sensitive Skin, Skin Conditioning
- Type
- Antioxidant
Ergothioneine
Ergothioneine is a water-soluble, sulfur-containing amino acid derivative used in cosmetic formulations. It's chosen for stable antioxidant performance, protecting the formula and supporting a resilient-looking finish.
Like this ingredient?
Our take
Is Ergothioneine a Good Ingredient?
Rated Good because it is a stable, water‑soluble antioxidant with supportive in‑vitro and formulation data, and it’s typically low‑irritating. While it helps defend against oxidative stress, topical human evidence for anti‑aging outcomes is moderate rather than definitive.
What it does
Skin Benefits
Helps defend skin from oxidative stress, supporting a fresher, more radiant look. Can aid in maintaining a healthier-looking tone under daily environmental exposure.
Where you'll find it
Uses in Skincare & Cosmetics
Common in antioxidant serums, eye creams, and sunscreens to complement daily protection routines.
Before you use it
Safety
Generally well tolerated with low irritation potential in leave‑on products. No common regulatory restrictions are associated with cosmetic use at typical levels.
Products with Ergothioneine
