Schwarzkopf Professional cares for light colours from blonde to grey with even colour protection. At the same time, the hair is strengthened and the colouring result is prolonged. The professional formulas of the Premium Developer are easy to use and intensively nourish the light-coloured or naturally grey hair structure.Let light hair shine for a long time with even colourSchwarzkopf Professional has developed this premium activator for all light colourations. When used, the colour achieved is not changed, but the colour result is emphasised. Grey hair does not shimmer in dull nuances, but shines with vitality thanks to the gentle formula. The Premium Developer six percent tones discoloured hair and gently lightens it. Even frizzy, damaged or very fine hair is given colour protection for longer durability and structural protection against styling stresses and environmental influences. Frizzy hair retains its elasticity, is easy to comb and full of radiance.Schwarzkopf Professional is easy to prepare for use on coloured or grey hair. The creamy texture is simply mixed thoroughly one-to-one in a plastic or ceramic bowl. The Premium Developer is then applied to the hair strand by strand as usual. The application time depends on the instructions on the colouring/blonding product. For a more intensive shine and protective result, the mixing ratio can be adjusted to individual preferences.