SCHWARZKOPF IGORA ROYAL OIL DEVELOPER 6% 20 VOL 900ML

It comes in 4 strengths: 3% (10 vol) 6% (20 vol) 9% (30 vol) 12% (40 vol) 3% for darker or pastel colouring and for covering 100% white hair; 6% for tone-on-tone colouring, white hair coverage and lightening 1–2 levels; 9% for lifting 2–3 levels (3–4 levels with the Special Blondes), colouring with -00 shades and white hair coverage with the Absolutes; 12% for lifting up to 5 levels and for colouring with the Fashion Lights. Available in 900ml.