Acidic composition based on lipid vesicles and its use in topical application

摘要

A composition containing a dispersion of lipid vesicles with an aqueous core and/or of lipid vesicles with an oily core. At least one acidic compound is present in the dispersion in an amount which is sufficient to impart a pH of less than 5 to the composition. The lipid membrane of the vesicles with an aqueous core does not contain: (a) acidic amphiphilic lipids (b) or non-hydrogenated soya lecithin in the presence of glycerol in the dispersion. The composition is stable and may be stored for several months.