HAIR DYEING COMPOSITION Russian patent published in 2018 - IPC A61K8/04 A61K8/38 A61Q5/10 

FIELD: cosmetology.

SUBSTANCE: invention relates to the hair dyeing composition, consisting of two phases - Phase A and Phase B, placed separately from each other and mixed immediately before use. Phase B is the oxidizing agent in the form of the aqueous solution, containing hydrogen peroxide, pH=2.5-5.0. The phase A is the gel, containing the gellan gum as the gelatinizing agent, the xanthane gum as the thickener, the ammonium hydroxide as alkaline agents, 25% solution, the oxidation dyes and/or its salts and its mixtures with dyes of direct action as the dye components, the propylene glycol as the solvent, the polyvinylpyrrolidone as the nonionogenic polymer, the sodium sulfite, the sodium erithorbate, the sodium bisulfite, or its mixtures as the reducing agent, the tetrasodium salt of the ethylene diamine tetracidic acid as complexion, the PEG-12 dimethicone, dimethicone PEG-8 medofoamate or its mixtures, perfume composition and water in the certain amount as the conditioning agent.

EFFECT: invention provides the stable water gel receipt, that does not contain surfactants and acrylate polymers, causing the gel rheology change at storing and increasing the probability of precipitation, and getting sustainable gel in the presence of salts-electrolytes, used as antioxidants and assisting its uniform and deep colouring of the hair.

3 cl, 3 tbl, 3 ex