Sr-Polypeptide-1
A cosmetic ingredient used as hair conditioning, eyelash conditioning in skincare, haircare, and personal-care products sold in the European Union.
What is it?
sr-Polypeptide-1 is a single chain recombinant protein produced by fermentation in E. coli. The starting gene is synthetically produced. The peptide contains 1190 amino acids consisting of alanine, asparagine, glycine, histidine, isoleucine, methionine, phenylalanine, proline, serine, tyrosine and valine which may contain disulfide bonds and/or glycosylation.
What does it do?
Sr-Polypeptide-1 is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Hair conditioning
improves the appearance, feel, and manageability of hair
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Eyelash conditioning
improves the appearance, feel, or condition of eyelashes
EU regulatory status
Sr-Polypeptide-1 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 Sr-Polypeptide-1?
Sr-Polypeptide-1 is a cosmetic ingredient catalogued in the EU CosIng database. sr-Polypeptide-1 is a single chain recombinant protein produced by fermentation in E. coli. The starting gene is synthetically produced. The peptide contains 1190 amino acids consisting of alanine, asparagine, glycine, histidine, isoleucine, methionine, phenylalanine, proline, serine, tyrosine and valine which may contain disulfide bonds and/or glycosylation.
Is Sr-Polypeptide-1 allowed in cosmetics in the EU?
Yes. Sr-Polypeptide-1 is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Sr-Polypeptide-1 do in cosmetic products?
Sr-Polypeptide-1 is declared in the EU cosmetic ingredient inventory with these functions: hair conditioning, eyelash conditioning.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 04/04/2024