Schwarzkopf Igora Royal 6% 20 Volume Colorists Color And Care Developer 1000mlThis product is the perfect accompaniment to the existing Schwarzkopf Igora Royal hair colour range.The fabulous formulation locks in the colour ensuring a long lasting result.Available in various volumes at 3%, 6%, 9% and 12%.It is a conditioning, caring peroxide which works gently on the hair. Instruction:Use 3%/10 Volume: For coloring darker.Use 6%/20 Volume:For coloring 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.).Use 3%/10 Volume: For coloring 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.Use 12%/40 Volume: For coloring 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 application for 12- series: natural base 6-0 and lighter.