Patent ID: 9700496
Date: 2017-07-11
CPC Classifications: A61K,A61P,A61Q

Claim:
1. A skin care method, comprising applying to keratin materials in which a disorder relating to an overproduction of melanin occurs, selected from the group consisting of pigmentary spots, hyperpigmented areas of skin, and the periphery of depigmented areas, of a subject in need thereof so as to reduce pigmentation of the pigmentary spots, hyperpigmented areas and periphery of depigmented areas, a cosmetic composition containing an effective amount of one pigmentation-reducing active agent, wherein the composition is applied to a keratin material having a disorder selected from the group consisting of contact dermatoses, drug-induced photodermatoses, melasma, keratoses, senile lentigo or solar lentigo, pigmentary spots resulting from scars or burns, pigmentary spots induced by allergic or phototoxic reactions, and leucoderma, wherein the active agent inhibits in melanocytes the expression of at least one selected from the group consisting of the gene encoding Tyrosinase Related Protein-1 (TRP-1) and the gene encoding tyrosinase, and wherein the active agent consists of a water having: a pH of between 7.6 and 10, and a total dissolved solids (TDS) concentration of between 10 and 250 mg/l, and comprising the following concentrations: calcium (Ca chloride (Cl magnesium (Mg potassium (K sodium (Na bicarbonates (HCO sulphates (SO