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

GLUTATHIONE

Safety grade: A

Glutathione is a naturally occurring antioxidant compound found in your body that helps protect cells from damage. In skincare products, it's used to help brighten the skin and reduce the appearance of dark spots and uneven tone.

As a reducing agent, glutathione helps brighten skin by inhibiting melanin production and protecting against oxidative stress and free radical damage.

Graded using: COSING, FDA.

Last verified: May 26, 2026