Main Reaction: Tryptophan >> 5-Hidroxytryptophan

Reference: PubMed ID: 28799779
Authors: Domingos ALG, Hermsdorff HHM, Bressan J
Title: Melatonin intake and potential chronobiological effects on human health.
Published: 2017 Aug 11

Tryptophan --> 5-Hidroxytryptophan