Histidine HCl is a cosmetic ingredient used as hair conditioning, skin conditioning. Also known as L-Histidine hydrochloride. Rated low hazard by EWG. Assessed as safe by the CIR.
Formula
C6H10ClN3O2
Mol. Weight
191.61
CAS #
645-35-2, 5934-29-2
Form
Powder
State
Fine white crystals; [Sigma-Aldrich MSDS]
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
The hydrochloride salt form of the amino acid histidine, developed for cosmetic formulations to improve stability and skin penetration. Used since the 1970s in anti-aging and moisturizing products.