Insight Anti-Yellow Shampoo 400ml is a specific shampoo for natural, colored or highlighted blond hair. It gently cleanses, giving brightness to blond tones. It contrasts the undesired yellow tones, the dullness and the brilliance loss. Insight is an organic ethical brand of hair products that are Paraben, SLS & SLES, Colourant Petrolatum and Fragrance Free plus they are 100% cruelty free!