| abstract |
A powdered hair dyeing or bleaching composition comprising: a) at least one solid source of carbonate ions, carbamate ions, bicarbonate ions, or mixtures thereof; and b) at least one solid source of oxidants; c) at least one solid source of ammonium ions, and d) when the powder composition is mixed with water to provide a concentration of about 1% to about 3%, the dispersed composition is mixed with a Brookfield viscometer. A crosslinked carboxylic acid having a particle size of about 10 micrometers or less in an amount to give a viscosity of about 10,000 mPas to about 20000 mPas and a pH of about 8.5 to about 9.4 when measured at 0.5 rpm using spindle S52. A powder hair dyeing or decoloring composition comprising a polymer thickener. |