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

CHLOROUS ACID

Safety grade: A

A mild antimicrobial compound that helps keep cosmetic products fresh by preventing bacteria and mold growth. It works by breaking down harmful microorganisms on skin, making it useful in cleansers and skincare products designed to reduce blemishes and maintain product stability.

Graded using: COSING.

Last verified: June 9, 2026