Is KL vegan?

sh-Nonapeptide-4 is also known as KL.

sh-Nonapeptide-4 is a synthetic peptide produced to be identical to a 9-amino-acid portion of the human protein Klotho, consisting of aspartic acid, cysteine, glycine, isoleucine, proline, serine and tyrosine residues. It is manufactured synthetically and used in cosmetic formulations for skin conditioning.

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