The coloured hair must be washed and looked after carefully for better preserving their glare and their strength. Daily aggressions (too aggressive pollution, sun, shampoos,…) cause a degradation of the pigments: the dark hair gradually loses the force of their colour. Based on plant extracts, Les 3 Chênes Color & Soin Dark Coloured Hair Shampoo 250 ml protects the capillary pigments. The naturalness and the intensity of your dark colour are preserved as at the first day of your colouring.