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Is 11alpha-Hydroxyprogesterone vegan?

11alpha-Hydroxyprogesterone

Not Vegan

11α-Hydroxyprogesterone is a steroid hormone metabolite of progesterone, typically produced via microbial biotransformation or from animal/plant steroid precursors; it and its esters are restricted substances in cosmetic products.

Also known as 11-alpha-Hydroxypregn-4-ene-3,20-dione, 11alpha-Hydroxyprogesterone; Pregn-4-ene-3,20-dione, 11-hydroxy-, (11alpha)-, Pregn-4-ene-3,20-dione, 11-hydroxy-
INCI name 11alpha-Hydroxyprogesterone
CAS number 80-75-1
EC number 201-306-9
CosIng ID 28727
Last reviewed 9 July 2026

Sources

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