| abstract |
The invention relates to undecylenic acid derivatives characterized in that they are the product obtained from the reaction of undecylenic acid with a hydrophilic organic macromolecule having primary alcohol and/or primary amine groups. Conveniently, the reaction product is further subjected to a lyophilisation step. Said derivatives have anti-sudation, anti-dandruff, anti-acne activities and can also be a main or auxiliary preservative and emulsioning agent in cosmetic or pharmaceutical compositions. |