Is Cysteine Hydrochloride vegetarian?
Cysteine Hydrochloride
L-cysteine hydrochloride is the hydrochloride salt of L-cysteine, produced from L-cysteine by reaction with hydrochloric acid. It shares the same origins as L-cysteine (animal hair/feathers or synthetic) and is used as a dough conditioner and in pharmaceutical and cosmetic applications.
| Also known as | Cysteine HCl, Cysteine hydrochloride, L-Cysteine HCl, L-Cysteine Hydrochloride, L-Cysteine Monohydrochloride |
|---|---|
| INCI name | Cysteine Hydrochloride |
| CAS number | 52-89-1 |
| EC number | 200-157-7 |
| CosIng ID | 75423 |
| Last reviewed | 14 July 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
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