Schwarzkopf Igora Lightener 450gr Blue Extra lightener that can be used for lightening processes - it lightens the hair up to 7 tones in a controlled manner. It offers opening performance enriched with wheat starch. It creates exactly the desired natural tones. It does not dry out - it maintains its softness as long as it stays on the hair - it holds on where it is applied. Since the hair bleaching process is a professional application, it is recommended to be applied only by experts. Mixture: In a non-metallic container, add 35gr (1 scoop) of IGORA Vario Blond Extra Power dust-free lightener and 70ml (1:2) of 3%-6% or maximum 9% IGORA Colorist's Color&Care Developer, depending on the desired degree of lightening. Mix until it reaches the consistency.