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COLOR HD contains a minimum amount of ammonia, about half the amount of conventional permanent dyes, which ensures that COLOR HD has a moderate alkaline consistency. Ammonia, being a volatile gas, does not leave any residues in the hair at the end of the process, but at the same time ensures good brilliance and coverage even in the most difficult situations.
USAGE GUIDELINES: The principle and purpose of ammonia in COLOR HD colours is
– to support the appearance of cosmetic pigment;
– to start the process of opening the cornea to ensure the transport of the tensides into the hair and ensure good colour coverage and depth;
– being an evaporative molecule, it achieves maximum results without leaving residues on the skin and hair after evaporation.
APPLICATION: mixing ratio 1:1,5, 1:2 for high brightness colours. Working time 35-45 minutes.
