Fine dispersion of melanin pigments, its preparation and its use in cosmetics

Abstract

The invention relates to a dispersion of melanic pigments containing in a medium selected amongst: a) the straight or branched monoalcohols comprising at least 3 carbon atoms; the straight or branched polyols comprising at least 2 carbon atoms; the saturated or unsaturated cycloaliphatic alcohols comprising at least 6 carbon atoms; the aromatic alcohols comprising at least 6 carbon atoms; the C.sub.8 -C.sub.22 fatty acid esters and C.sub.1 -C.sub.6 alcohol esters or the C.sub.2 -C.sub.6 polyol esters; the C.sub.1 -C.sub.6 aliphatic acid esters or the C.sub.8 -C.sub.22 aromatic acid and fatty alcohol esters; the C.sub.8 -C.sub.22 fatty acid esters and the C.sub.8 -C.sub.22 fatty alcohol esters, the C.sub.6 -C.sub.22 polyacid and alcohol esters, the hydroxylated fatty acid diesters; the straight or branched paraffins comprising at least 8 carbon atoms; the silicone oils; and the mixture of these different organic compounds, or b) an emulsion comprised of a liquid defined under a), non water miscible, water and an emulsifying agent, a melanic pigment in the form of particles in which at least 75% of the particles have a grain size smaller than 10 microns. The invention also relates to a method for the preparation and the utilization of such dispersion in cosmetics.

Dependencies are inferred from the claim text.