A METHOD OF PREPARING A COSMETIC END FORMULATION IN THE FORM OF A NANODISPERSION

摘要

"A method of preparing a cosmetic end formulation in the form of a nanodispersion" This invention relates to a method of preparing a cosmetic end formulation, as herein described comprises the steps of: (i) mixing the components (a) 0.1-30 % by weight of a phospholipid, (b) 1-50 % by weight of polyethoxylated fatty alcohols, polyethoxylated fatty acids, polyethoxylated vitamin E derivatives, polyethoxylated lanolin and the derivatives thereof, polyethoxylated fatty acid partial glycerides, polyethoxylated alkylphenols, sulphuric acid monoesters of polyethoxylated fatty alcohols and the salts thereof, polyethoxylated fatty amines and fatty acid amides, polyethoxylated carbohydrates, block polymers of ethylene oxide and propylene oxide, (c) 0.1 - 80 % by weight of a natural or synthetic or partially synthetic di- or triglyceride, a mineral oil, silicone oil, wax, fatty alcohol, guerbet alcohol or ester thereof, a lipophilic functional cosmetic active agent or a mixture of these substances, and (d) a C2-C8 alcohol, with usual stirring apparatus until a homogeneous clear liquid is obtained, and (ii) adding the liquid obtained in step (i) to the water phase to obtain the said formulations.