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

OYSTER SHELL EXTRACT

Safety grade: A

Oyster shell extract is a substance derived from the hard outer shells of oysters. It contains minerals and compounds that have been used traditionally in skincare and wellness products.

Oyster shell extract is used in cosmetics for its mineral content, which may provide skin conditioning and antioxidant benefits, though its specific cosmetic function has not been formally reported or standardized.

Graded using: COSING, FDA.

Last verified: May 26, 2026