Oil developer 33.8 FL oz.nProfessional usenSchwarzkopf igora royal developernSchwarzkopf 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.