Allowed in EU

Hydroxytryptophan

A cosmetic ingredient used as skin conditioning in skincare, haircare, and personal-care products sold in the European Union.

What is it?

5-Hydroxytryptophan

What does it do?

Hydroxytryptophan is listed in the EU cosmetic ingredient inventory with the following declared functions:

EU regulatory status

Hydroxytryptophan is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.

Frequently asked questions

What is Hydroxytryptophan?

Hydroxytryptophan is a cosmetic ingredient catalogued in the EU CosIng database. 5-Hydroxytryptophan

Is Hydroxytryptophan allowed in cosmetics in the EU?

Yes. Hydroxytryptophan is allowed for use in cosmetic products in the EU under Regulation 1223/2009.

What does Hydroxytryptophan do in cosmetic products?

Hydroxytryptophan is declared in the EU cosmetic ingredient inventory with these functions: skin conditioning.

What is the CAS number of Hydroxytryptophan?

The CAS (Chemical Abstracts Service) number for Hydroxytryptophan is 56-69-9.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 15/10/2010