IMPROVED DECOLOURATION OF DYED KERATINOUS FIBRES Russian patent published in 2019 - IPC A61K8/44 A61K8/45 A61K8/46 A61Q5/08 

FIELD: cosmetic industry.

SUBSTANCE: group of inventions relates to the cosmetic industry, in particular to a kit for restorative decolouration of dyed keratin fibres, wherein separately packaged are: (I) container (A) containing cosmetic agent (a); (II) container (B) containing cosmetic agent (b); (III) container (C) containing an aqueous cosmetic agent (c); wherein means (a) in container (A) comprises (a1) a reducing agent which is selected from sodium dithionite; agent (b) in container (B) contains (b1) water and (b2) 1-hydroxyethane-1,1-diphosphonic acid and agent (c) in container (C) contains (c1) methanesulphonic acid and oxalic acid, (c2) one or more zwitterionic and/or amphoteric surfactants, and relates to a method for restorative decolouration of dyed keratin fibres.

EFFECT: group of inventions provides prolonged decolouration effect.

13 cl, 6 tbl