Schwarzkopf Professional Igora Royal Oil Developer 9% is an easy-to-apply oil consistency activator that ensures ideal and 100% even hair color coverage. The new Igora Royal 9% activator is used for hair lightening, with the help of this activator it is possible to lighten hair by 4-5 tones. The color pigments are locked inside the hair, and the hair itself is strengthened and protected from damage. This activator for professional use is intended for use with Igora Royal hair dye. The microparticles in the Igora Royal oil activator form an iridescent color crystal complex and enhance the intensity of the color. Miracle tree proteins strengthen the hair structure, while cationic ingredients act as conditioners, ensuring comprehensive color care, amazing shine and long-lasting results. Now with Schwarzkopf Professional Igora Royal Oil Developer 9% activator, the dyeing result is even more impressive and the hair is silky soft. Usage: Schwarzkopf Professional Igora Royal activator is recommended to be used only with Schwarzkopf Professional Igora hair dye. The mixing ratio is indicated on the product packaging. 9% activator is used for hair lightening. Not suitable for coloring gray hair and tone-on-tone coloring. Contains hydrogen peroxide. Follow the instructions for use.