Is 5-Hydroxytryptophan vegan?

5-Hydroxytryptophan

Vegan

5-Hydroxytryptophan (5-HTP) is a naturally occurring amino acid and metabolic intermediate in the biosynthesis of serotonin from tryptophan; it is commercially produced from the seeds of Griffonia simplicifolia or synthetically.

Also known as 5-Hydroxytryptophan, Hydroxytryptophan, Oxitriptan
INCI name 5-Hydroxytryptophan
CAS number 4350-09-8
EC number 200-284-8
CosIng ID 82883
Last reviewed 10 July 2026

Sources

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