| abstract |
The present invention relates to an oxidative dyeing and oxidative bleaching composition for hair comprising an oxidant, a source of carbonate ions, an alkalinizing agent and certain dyes, as defined herein below, as 9.5. Utilized at the following pH, it improves color delivery and intensity, provides different colors / hues and chromophores, is compatible with current dyes and dye precursor systems, and fades and brightness for blonde hues Improved dye coverage and color and improved gray coverage. In addition, the compositions of the present invention also exhibit low odor and deliver high discoloration and brightness comparable to currently utilized ammonia / peroxide systems while reducing peroxide concentration. Reduce hair fiber damage. |