Cover Line is an oxidative hair colour and requires a deveoper to activate. Please refer to our products to find the developers 100 millillitre. Cover Line delicate creme colour is produced in Italy by one of the most advanced, extensively certified and exclusively designed production technologies in the world. Contains natural vitamins and plant phyto-proteins to provide added strength to the hair. Provides 100% grey coverage Easy to apply formula moisturises and adds condition whilst colouring.