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

VALPROIC ACID

Safety grade: A

A synthetic ingredient used in small amounts to help stabilize and preserve cosmetic formulations, keeping products fresh and effective over time. It works by preventing unwanted chemical changes that can occur during storage.

Graded using: COSING.

Last verified: June 9, 2026