Schwarzkopf Igora ROYAL Oil Developer 1L/ 33.81 oz (6% /20
VOLUME) 3%/10Vol: For coloring darker, tone-on-tone or pastel coloring (with 9.5 -shades) on previously bleached or highlighted hair.
6%/20Vol: For coloring up to 1-2 levels lighter and the coverage of white hair.
9%/30Vol: For coloring up to 2-3 levels lighter, or for covering resistant white hair.
12%/40Vol: For coloring up to 3-4 levels lighter