Extreme shampoo by Redken. A fortifying shampoo to treat, repair and clean damaged hair. This shampoo for daily use has a delicate but deep cleansing action on the hair and scalp, leaving them totally free from impurities and residues. Furthermore, it also exercises a total fiber restoration, providing strength and nutrition, from root to tip. After use, the weakened areas return to their natural state and the hair acquires renewed softness and shine.