Non-irritant aqueous liposome dispersions containing alpha-hydrocarboxylic acids alpha-ketocarboxylic acids and/or salicylic acid in their salt forms

摘要

The present invention relates to an aqueous liposomal dispersion of phospholipids comprising: (a) one or more alpha -hydroxycarboxylic acids, one or more alpha -ketocarboxylic acids, or salicyclic acid or mixtures therefrom and (b) one or more alcohols, said dispersion having a physiological pH value in the range from 5 to 7.5 and said acids being present nearly completely in salt form. The liposomal dispersion is nonirritant and has a beneficial effect on the skin.