BIS-GLUTATHIONE TRISULFIDE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

BIS-GLUTATHIONE TRISULFIDE

Safety grade: A

A naturally derived antioxidant that helps protect skin from environmental damage and free radicals. It works to maintain skin's natural defense system and may help improve skin brightness and clarity over time. This ingredient is often found in serums and moisturizers aimed at anti-aging and radiance-boosting benefits.

Graded using: COSING.

Last verified: June 9, 2026