Schwarzkopf Igora Royal Developer 3%/10Vol: For colouring darker. For pastel colouring (with 9.5-shades) on previously bleached or highlighted hair. 6%/20Vol: For colouring tone-on-tone up to 1 level lighter and the coverage of white hair with the Color of Rhapsody, Harmony, Lust, Perfection and Serenity. Exclusion from the Color of Serenity: -00 shades (always use 9%/30Vol.). 9%/30Vol: For colouring up to 1-2 levels lighter with shades from the Color of Rhapsody, Harmony, Lust, Perfection and Serenity. For lightening 2-3 levels with 10- series. For lightening 3-4 levels with 12- series. For covering resistive white hair with ?00 shades. For covering white hair with the Color of Commitment. 12%/40Vol: For colouring up to 2-3 levels lighter with the Color of Rhapsody, Harmony, Lust, Perfection and Serenity. For lightening 3-4 levels with 10- series. Recommended application for 10- series: natural base 7-0 and lighter. For lightening 4-5 levels with 12- series. Recommended applicatio