Abstract: Methods of treating skin and for stimulating filaggrin synthesis are described wherein skin is contacted with a soluble protein fraction, preferably extracted from leguminous seeds, and wherein the fraction (i) exhibits at least one band under non-reducing conditions in polyacrylamide gel electrophoresis with sodium dodecyl sulfate, (ii) has an average molecular weight of 500 to 500,000 dalton, (iii) has a total nitrogen content of from 0.005 to 0.5% by weight based on the percentage protein content and an amino nitrogen content of from 0.0005 to 0.01% by weight; and (iv) wherein the fraction is soluble in water and aqueous electrolyte solutions and insoluble in ethanol or acetone, and (v) wherein the fraction forms deposits in aqueous solution with a reactant selected from the group consisting of trichloroacetic acid and picric acid.

Abstract: A matrix for preparing microparticles or nanoparticles, method for making the particles and resulting particles, more particularly a matrix for forming microparticles or nanoparticles by hot dispersion in a non-miscible gas or liquid medium, characterised in that it consists of at least a solid hydrophobic element at room temperature and of at least a liquid element, hydrophobic and/or lipophilic, hot mixed by solubilizing the solid element(s) in the liquid element(s), the matrix having a melting point ranging between 25° C. and 85° C.

Abstract: Cosmetic preparations are disclosed, containing: (a) extracts of Waltheria indica and (b) ascorbic acid, ferulic acid and/or kojic acid.

Abstract: A process is provided for the production of glycogens or an extract rich in glycogens from yeast cells, and a cosmetic composition containing them. A given quantity of yeast cells, from a specific culture or recovered as residues of a fermentation process, is subjected to an operation of enrichment in intracellular glycogens by culturing in two phases in the presence of a carbon source. The metabolism of the yeast cells is then stopped. The membranes of the yeast cells are then at least partially disintegrated to free intracellular substances, and the freed intracellular substances are subjected to at least one precipation to precipitate glycogens. A cosmetic composition comprising the glycogens is formulated in admixture with a dermatologically acceptable excipient.

Abstract: The invention relates to a composition promoting photo-pigmentation and/or photo-protection of the epidermis by exposure to sun or UV rays.The composition comprises at least a natural substance homologous or analogous to those normally present in the epidermis, said homologous substance being constituted by an aminoacid or a derivative thereof acting, directly or indirectly, onto the melanogenesis.This composition is usable notably as a cosmetic product under topical application onto the epidermis.

Abstract: A chemical compound of the formula: ##STR1## wherein X is a halogen selected from bromine, chlorine, iodine and fluorine, and preferably bromine; Z is selected from the group constituted by --CHO, --CH.dbd.NOH, --C.tbd.N; n is an integer from 1 to 11; m.sub.1 and m.sub.2, identical or different, are integers from 1 to 4.