CUTIBACTERIUM ACNES CA-21 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

CUTIBACTERIUM ACNES CA-21

Safety grade: A

A beneficial bacteria derived from human skin that helps balance your skin's natural microbiome. When used in skincare products, it works to support healthy skin flora and may help reduce problematic bacteria that contribute to breakouts and irritation. This ingredient promotes a more balanced complexion.

Graded using: COSING.

Last verified: June 9, 2026