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Is Undecylenoyl Phenylalanine vegan?

Undecylenoyl Phenylalanine

Vegan Vegan
Vegetarian Vegetarian

Undecylenoyl Phenylalanine is a synthetic compound formed by the acylation of the amino acid phenylalanine with undecylenic acid, a fatty acid typically derived from castor oil. It is used in cosmetics as a skin-conditioning and anti-aging agent.

Also known as L-Phenylalanine, N-(1-Oxo-10-Undecenyl)-
INCI name Undecylenoyl Phenylalanine
CAS number 175357-18-3
CosIng ID 59985
Last reviewed 4 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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