Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine
A cosmetic ingredient used as skin conditioning - miscellaneous in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine is a peptide consisting of Tryptophan, Hydroxyproline, and Serine.
What does it do?
Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Skin conditioning - miscellaneous
improves skin condition through mechanisms not classified under the more specific emollient or humectant subcategories
EU regulatory status
Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine 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 Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine?
Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine is a cosmetic ingredient catalogued in the EU CosIng database. Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine is a peptide consisting of Tryptophan, Hydroxyproline, and Serine.
Is Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine allowed in cosmetics in the EU?
Yes. Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine do in cosmetic products?
Tryptophanyl Hydroxyprolyl Tryptophanyl Hydroxyprolyl Serine is declared in the EU cosmetic ingredient inventory with these functions: skin conditioning - miscellaneous.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 28/04/2025