HYDROXYTRYPTOPHAN
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
HYDROXYTRYPTOPHAN is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.
Hydroxytryptophan (5-hydroxytryptophan or 5-HTP) is an amino acid derivative and direct precursor to serotonin, increasingly used in topical formulations for potential calming effects on skin. The ingredient is not subject to specific EU cosmetic restrictions and is considered safe for topical use within normal concentration ranges.
Skin benefits
- Amino acid derivative with potential skin-soothing properties
- Component of normal protein metabolism
Known concerns
- Limited cosmetic-specific safety data
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Check your shelf
Find HYDROXYTRYPTOPHAN in your products.
Scan any cosmetic product with LuxSense to see if it contains HYDROXYTRYPTOPHAN and get a full ingredient breakdown with safety scores.
This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.