Goldwell kerasilk colour structure balance treatment is a balancing leave-in treatment spray for colour-treated hair. Helps even out hair structure for balanced colour penetration from regrowth to tips.contains keratin & tamanu oil to actively interact with hair’s structure. Helps condition & moisturize hair. Provides long-lasting colour depth & brilliance. Blended with colour caring silk to protect colour from fading out.leaves hair shiny & healthy looking.