INCI name

POTASSIUM UNDECYLENATE

This entry shows data from the EU CosIng database. An editorial description has not been written and reviewed yet.

Functions

Surfactant – emulsifying
Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
Preservative
Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.
Surfactant – cleansing
Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).

EU regulation

EU · Annex V, entry 18Undec-10-enoic acid and its salts
Maximum concentration
0.2% (as acid)
As of
3 November 2026 · (EC) 2009/1223
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