Antioxidants

Cysteine Hcl

INCI: CYSTEINE HCL
CAS 52-89-1 EC 200-157-7
Cysteine hydrochloride
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

Antioxidant, Hair Conditioning, Hair Waving Or Straightening, Reducing
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Cysteine hydrochloride

Reference

Identifiers

CAS Number
52-89-1
EC Number
200-157-7
INCI
CYSTEINE HCL
Category
Antioxidants
Updated
Apr 23, 2026