5-Hydroxytryptophan
5-HTPOxidized tryptophanTryptophan metabolite
Mood Enhancer
5-HTP is a chemical that your body makes from the amino acid tryptophan. It helps make serotonin, a brain chemical that can improve your mood.
Moderate Concern
Source: EFSA assessment
The concern is that high doses may interact with certain medications, such as antidepressants, and cause side effects like nausea and diarrhea.
No result found for this ingredient.
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Effects of 5-hydroxytryptophan on distinct types of depression: a systematic review and meta-analysis.
Javelle F, Lampit A, Bloch W
2020
Read on PubMedLast updated: May 16, 2026