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Is Calcium Hydroxymethionine vegetarian?

Calcium Hydroxymethionine

Vegetarian Vegetarian
Vegan Vegan

Calcium Hydroxymethionine is the calcium salt of hydroxy analogue of methionine, a synthetic organic compound used in cosmetic and nutritional applications.

Also known as 225-455-4, 4857-44-7, Calcium bis(2-hydroxy-4-(methylthio)butyrate), calcium bis[(±)-2-hydroxy-4-(methylthio)butyrate, Calcium bis[(±)-2-hydroxy-4-(methylthio)butyrate]
INCI name Calcium Hydroxymethionine
CAS number 922-50-9
EC number 213-075-1
CosIng ID 86135
Last reviewed 4 July 2026

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

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