Extraordinarily Brilliant Colour with Synergy For maximum results, Echos Synergy Color Permanent Hair Colours must be mixed with Echos Synergy Color Hair Activators. The special composition boosts grey coverage, restructures and enhances glossiness. Echos Synergy Color Hair Activators can also be mixed with other brands of permanent hair colour and bleach to improve strength, stability and adherence for better lift. Features:
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