Cosmadex
Allowed in EU

Sr-Spider Polypeptide-4

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

What is it?

sr-Spider Polypeptide-4 is a single chain recombinant spider protein, produced by fermentation in E. coli. The starting gene is a synthesized copy of the gene from Araneus diadematus which codes for Dragline Silk Protein Spidroin 1. The protein contains a maximum of 617 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.

What does it do?

Sr-Spider Polypeptide-4 is listed in the EU cosmetic ingredient inventory with the following declared functions:

EU regulatory status

Sr-Spider Polypeptide-4 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-Spider Polypeptide-4?

Sr-Spider Polypeptide-4 is a cosmetic ingredient catalogued in the EU CosIng database. sr-Spider Polypeptide-4 is a single chain recombinant spider protein, produced by fermentation in E. coli. The starting gene is a synthesized copy of the gene from Araneus diadematus which codes for Dragline Silk Protein Spidroin 1. The protein contains a maximum of 617 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.

Is Sr-Spider Polypeptide-4 allowed in cosmetics in the EU?

Yes. Sr-Spider Polypeptide-4 is allowed for use in cosmetic products in the EU under Regulation 1223/2009.

What does Sr-Spider Polypeptide-4 do in cosmetic products?

Sr-Spider Polypeptide-4 is declared in the EU cosmetic ingredient inventory with these functions: skin conditioning.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 04/03/2016