Schwarzkopf Igora Royal Highlifts 12-21 Super Lightening Blonde Ash Cendré 60ml - permanent colouring
The system is based on a combination up to 4 numbersThe number before the dash indicates the tone level of the shadeThe number after the dash indicates the primary highlight, the second number after the dash indicates the secondary highlight, two identical numbers after the dash indicate the reinforced main highlight; the third number after the dash indicates the minor highlight
Mixing ratio 1:1Apply first to mid-lengths and ends, after 10-15 minutes apply to rootsApplication time: 30 minutes ( 10 volumes) 30-45 minutes ( 20 volumes) 30-45 minutes ( 30 volumes) 30-45 minutes ( 40 volumes)