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Is Lysine Carboxymethyl Cysteinate vegan?

Lysine Carboxymethyl Cysteinate

Lysine Carboxymethyl Cysteinate is a compound formed from the amino acid lysine and S-(carboxymethyl)-L-cysteine, used in cosmetics as a conditioning agent; amino acids used may be of synthetic, plant, or animal origin.

Also known as 256-425-9, 49673-81-6, DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1)
INCI name Lysine Carboxymethyl Cysteinate
CAS number 79458-68-7
EC number 279-164-2
CosIng ID 35066
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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