Added to the colouring cream and activator mixture, it reduces the application time to 15 minutes, granting grey hair full coverage and the usual natural Vitality’s hair colouring. The innovative formulation delays the reaction between the colouring cream and the activator, so that the molecules, small sized, could start their action, only when the mixture is applied to the hair. In this way,the mixture can enter the cortex, by allowing the penetration in-depth. AS A RESULT, THE COLOUR APPEARS DEEP, RICH AND BRILLIANT. The colour is sealed into the hair, ensuring a better wash resistance and an extra hair shine 100ml