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Is Guanidine HCl vegetarian?

Guanidine HCl

Vegetarian Vegetarian
Vegan Vegan

Guanidine HCl (guanidinium chloride) is the hydrochloride salt of guanidine, a synthetic organic compound used as a protein denaturant and in hair-styling and cosmetic formulations.

Also known as Guanidinium Chloride
INCI name Guanidine HCl
CAS number 50-01-1
EC number 200-002-3
CosIng ID 34173
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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