Bleaching Powder Sarah K BOMBASTIC has in its formula Keratin, which is essential to strengthen the hair. It is the perfect choice for all the whitening techniques in resistant hair and to those hairs that are difficult to lighten with others powders, it acts faster and at the same time protects the hair , in its formula has hydrolyzed keratin, letting the hair more malleable and shiny. It has high power of lightening up to 9 tones in natural or colored hair with the Dust Free system