Koleston Perfect Base & Welloxon Perfect (1:1). Mixing ratio: brightening by three tones: 1 part Koleston Perfect, 1 part Welloxon Perfect 12%. Two tone lightening: 1 part Koleston Perfect, 1 part Welloxon Perfect 9%. 1 tone brightening / grey/white coverage of the same level or darker: 1 part Koleston Perfect, 1 part Welloxon Perfect 6%. Visit the corresponding product pages for specific recommendations and mixing ratios for the product used. Perfect, even and modern colour result. Less hair damage with each use. * (*Compared to previous Koleston Perfect. Valid for Koleston Perfect with Pure Balance technology). Me+ reduces the risk of developing a new allergy to hair colour. ** (**For people who are not allergic to hair dyes. Although the risk of developing new allergies is reduced, there is still a risk of allergic reactions, which can sometimes be severe. Perform an allergy test 48 hours before any colouring. Carefully follow the safety instructions. If you have already experienced allergic reactions to hair dye in the past, you should not colour it. ME+ is contained in certain nuances of Koleston Perfect brand's Pure Naturals, Rich Naturals, Vibrant Reds, Special Blondes and Deep Browns.

Less hair damage with each use (compared to previous Koleston Perfect. Valid for Koleston Perfect with Pure Balance technology). you should not colour. ME+ is contained in certain nuances of Koleston Perfect brand's Pure Naturals, Rich Naturals, Vibrant Reds, Special Blondes and Deep Browns. which can sometimes be severe. Perform an allergy test 48 hours before any colouring. Carefully follow the safety instructions. If you have already experienced allergic reactions to hair dye in the past,. Me+ reduces the risk of developing a new allergy to hair colour (for people who are not allergic to hair dyes). Although the risk of developing new allergies is reduced, there is still a risk of allergic reactions. The colour is made with ME+ technology. Perfect, even and modern colour results.