Sodium Undecylenate
A cosmetic ingredient used as preservative, surfactant - cleansing, surfactant - emulsifying in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Sodium undec-10-enoate
What does it do?
Sodium Undecylenate is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Preservative
prevents microbial growth in cosmetic products, extending shelf life and protecting users
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Surfactant - cleansing
surfactant whose primary cosmetic role is cleansing — the active workhorse in soaps, shampoos, and body washes
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Surfactant - emulsifying
surfactant that forms and stabilises emulsions of oil and water — without it, creams and lotions would separate
EU regulatory status
Sodium Undecylenate is listed in Annex V of EU Cosmetics Regulation 1223/2009 as a substance permitted for the corresponding category of use.
Frequently asked questions
What is Sodium Undecylenate?
Sodium Undecylenate is a cosmetic ingredient catalogued in the EU CosIng database. Sodium undec-10-enoate
Is Sodium Undecylenate allowed in cosmetics in the EU?
Yes. Sodium Undecylenate is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Sodium Undecylenate do in cosmetic products?
Sodium Undecylenate is declared in the EU cosmetic ingredient inventory with these functions: preservative, surfactant - cleansing, surfactant - emulsifying.
What is the CAS number of Sodium Undecylenate?
The CAS (Chemical Abstracts Service) number for Sodium Undecylenate is 3398-33-2.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 10/08/2020