Developed for dry, dull hair, this shampoo visibly transforms lacklustre lengths thanks to a 2% Gloss Complex, powered by glycolic acid. Glycolic acid nourishes all parts of the hair, encouraging instant luminosity and softness. The lightweight formula cleanses away impurities to grant a light-reflecting lustre. It gently cleanses and refreshes from root to tip, helping to transform your hair for up to 5 x washes, revealing a high-gloss, super sleek finish.