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

HISTIDINE HYDROCHLORIDE

Safety grade: A

Histidine hydrochloride is an amino acid salt derived from histidine, one of the building blocks of protein. It helps protect cosmetic products and skin from oxidative damage caused by exposure to air and light.

This ingredient acts as an antioxidant and reducing agent to prevent product degradation and help protect skin from free radical damage that can lead to premature aging.

Graded using: COSING.

Last verified: May 26, 2026

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