Patent ID: 8815787
Filing Date: 2014-08-26
Classification: A61K,A61Q,C11D

Abstract:
1. A skin cleanser, comprising the following components (A) to (D): (A) from 1 to 30% by weight of a fatty acid or a salt thereof comprising a linear alkyl group having from 11 to 23 carbon atoms; (B) from 0.5 to 10% by weight of a polyoxyethylene alkyl ether carboxylic acid or a salt thereof; (C) from 0.1 to 10% by weight of an amphiphilic substance, wherein the amphiphilic substance is at least one selected from the group consisting of a polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, a polyoxyethylene hydrogenated castor oil, a (di)glycerin monofatty acid ester, a (di)glycerin monoalkyl ether, a branched fatty acid, and a branched higher alcohol, wherein the amphiphilic substance has an iorganic organic balance value (IOB) of from 0.25 to 1.2; and (D) from 1 to 25% by weight of water-insoluble particles having an average particle diameter of from 50 to 500 μm, wherein the water-insoluble particles are a water-insoluble powder selected from the group consisting of an inorganic powder, a silicone powder, a silk powder, a hemp powder, an organic powder of saccharide, a synthetic polymer, and a granulated powder obtained by using the water-insoluble particles as primary particles and a binder, wherein a weight ratio between the components (A) and (B), (A)/(B), is from 1/2 to 10/1.