Gently cleanse and add substantial strength to dry hair with Redken Extreme Shampoo. A proprietary RCT protein complex sets this product apart as the best shampoo for dry hair. Fortify every strand of dry or damaged hair and seal in moisture simply by washing every day or as needed.This formulation is an innovative SMART haircare product developed by Redken scientists. All of the products in the SMART line contain new technologies that can help maintain the looks you love while improving the overall health and resilience of hair. This shampoo includes amino acids and ions, arginine, sepicap, and soy proteins for improving hair health.Apply this shampoo to wet hair, lather, and rinse. For the most drastic results, follow with Redken Extreme Conditioner and Anti-Snap styling treatment. Even the driest and most heavily damaged hair can grow healthier and stronger with regular use of these expertly formulated professional haircare products. Redken has been making discoveries in haircare science since 1960.