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.
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Ingredient Snapshot

Overview
A stable antioxidant that helps skin look fresher and more resilient.
Category
Antioxidant, Sensitive Skin, Skin Conditioning
Type
Antioxidant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

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.

Uses In Skincare & Cosmetics

Common in antioxidant serums, eye creams, and sunscreens to complement daily protection routines.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally well tolerated with low irritation potential in leave‑on products. No common regulatory restrictions are associated with cosmetic use at typical levels.

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.

Products with Ergothioneine

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