Cosmetic and/or pharmaceutical composition containing a dispersion of lipid vesicles, process for the preparation of the said dispersion and dispersion of lipid vesicles

A composition comprising, in an aqueous dispersion phase, a dispersion of lipid vesicles encapsulating an aqueous phase, said lipid vesicles comprising a lipid phase containing (a) an ionic amphiphilic lipid or (b) a nonionic amphiphilic lipid, or a mixture of (a) and (b), together with (c) a compound having the formula

• wherein
• (a) W represents --CH.sub.2 OH, --COOM or --(CH.sub.2).sub.2 --COOM, wherein M represents H, alkali metal or alkaline earth metal and X, Y, Z and V, each independently, represent hydrogen or hydroxyl, with the proviso that when W represents --CH.sub.2 OH at least one of X, Y, Z or V represents hydroxyl, or
• (b) W represents --CH.sub.3 and X, Y, Z and V represent H or OH combined as shown in each line of the table below:
• ______________________________________ X Y Z V ______________________________________ OH OH OH OH H OH OH H H H OH OH OH H OH H ______________________________________
• with the proviso that the compound of formula (I) is not phytanetriol;
• 3-hydroxymethyl-7,11-15-trimethyl-1,2,4-trihydroxyhexadecane;
• 5,9,13,17-tetramethyloctadecanoic acid or 3,7,11,15 tetramethyloctadecanoic acid.