Redken Blondage High Bright Shampoo 1L gives blonde hair the opportunity to maintain its perfect color without unwanted undertones or dullness. Namely, this shampoo deeply washes the entire length of the hair and the scalp keeping the blonde radiant and neutralized. In turn, powered by Vitamin C and Redken's Brightening Care Complex, this product does not need to contain pigments for this neutralization to take place. In this case, these two components end up washing away buildup and impurities in the hair, brightening dulled, darkened, or mattified blonde hair caused by dulling agents and pollution. On the other hand, this shampoo can also seal the hair fiber cuticles and fill in hair porosity to lock out dullness. In the end, all blonde hair looks brighter, silky, and soft.