SOLID COSMETIC AND THERAPEUTIC COMPOSITIONS SUITABLE FOR APPLICATION ON HUMAN SKIN AND ARE ABLE TO FORM A GEL IN CONTACT WITH WATER

摘要

1. Cosmetic and therapeutic compositions suitable for application to human skin, characterized in that they are in a solid state, are able to form a gel upon contact with water and containing from 6.0 to 40% hyaluronic acid or its alkaline salts, from 5 to 70% inert powder with a particle size of less than 150 microns and from 6.0 to 40% bound water, and the percentages are by weight relative to the weight of the solid composition. ! 2. The composition according to p. 1, characterized in that they contain at least one more component selected from the group consisting of emulsifying, moisturizing and pharmaceutical substances. ! 3. The composition of claim 1, wherein said inert powder is selected from the group consisting of mica, talc, silica, polymethyl methacrylate, lauroyl lysine and corn starch powders. ! 4. The composition according to p. 2, characterized in that said emulsifying substances are selected from the group consisting of partial esters of sorbitan polyethoxylate with fatty acids and partial esters of glycerol polyethoxylate with fatty acids. ! 5. A method of obtaining a solid composition, forming a gel in water, in accordance with which hyaluronic acid or its sodium salts are dispersed in a mixer containing water, preheated to a temperature of from 50 to 70 ° C, which is then mixed to obtain a clear gel free of lumps, an inert powder and other possible components that must be present in the solid composition are then slowly added dropwise to the mixer, and slow stirring is continued until the powder is completely dispersed, then eremeshivanii done slowly COOLING