Special Blonde colour nuance ratio (1:2). Special Blonde: 1 part Koleston Perfect, 2 parts Welloxon Perfect 9 % for three tones of lightening or 12 % for four/five tones of lightening. - Perfect, uniform and modern colour results. 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 prior to any colouring. Carefully follow the safety instructions. If you have already experienced allergic reactions to hair colourants in the past, you should not colour your hair. ME+ is contained in certain nuances of Koleston Perfect's Pure Naturals, Rich Naturals, Vibrant Reds, Special Blondes and Deep Browns.

Less hair damage with each use* (*Compared to previous version of Koleston Perfect. Applies to Koleston Perfect with Pure Balance technology.). you should not colour your hair. ME+ is contained in certain nuances of Koleston Perfect's Pure Naturals, Rich Naturals, Vibrant Reds, Special Blondes and Deep Browns. which can sometimes be severe. Perform an allergy test 48 hours prior to any colouring. Carefully follow the safety instructions. If you have already experienced allergic reactions to hair colourants 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 has been developed with ME+ technology. Perfect, uniform and modern colour results.