Patent ID: 7226486

Claim:
A ready-to-use composition for bleaching human keratin fibers, comprising: i) at least one anhydrous bleaching composition, in paste form, comprising: at least one peroxygenated salt; at least one alkaline agent; and from 15% to 35% by weight of at least one inert organic liquid; and ii) at least one hydrogen peroxide oil-in-water emulsion comprising: at least one first surfactant chosen from nonionic and anionic surfactants and at least one copolymer comprising (a) at least one unit derived from a salified or non-salified (meth)acrylic acid and (b) at least one unit derived from esters of (meth)acrylic acid and at least one first fatty alcohol chosen from saturated and unsaturated, linear and branched, ethoxylated C 8 -C 30 fatty alcohols, wherein said at least one anhydrous bleaching composition and said at least one hydrogen peroxide oil-in-water emulsion are mixed together before use.