Nexxus Amino Bond Shampoo has been specially formulated to help with hair repair for all types of damaged hair. Using the Nexxus exclusive hair care PROTEINFUSION blend with keratin protein and amino acids, this silicone and sulfate-free shampoo cleanses damaged hair, rebuilds broken hair bonds and repairs up to 2 years of protein damage after one use for strong, healthy-looking hair. Using new patented technology featuring 5 key amino acids, glutamic acid, cysteine, histidine, serine, glycine, our bond repair system will help make your hair stronger and smoother with fewer split ends and less breakage. Restoring and protecting the four signs of healthy hair, moisture, strength, shine and elasticity will also prepare it for easier styling. To use, apply shampoo to wet hair, massage into a rich lather, and rinse thoroughly. Follow with Nexxus Amino Bond Conditioner for optimal results. Nexxus relies on science when developing hair products that can help replenish the strength, shine, and vibrancy your hair was meant to have. We know that hair is made of almost 90% proteins, which is why we use advanced scientific methods to identify the protein needs of each hair type and create customized formulas with proteins to repair hair damage and bring your hair back to life.