The full Nexxus AMINO BOND collection can penetrate deep into your hair to help strengthen each strand and its bond from the core. When hair damage occurs, bonds break, and amino acids are lost throughout your hair, from the core to the outer cuticle layer. But the AMINO BOND collection is designed specifically for damaged hair, to repair up to 5 types of hair damage in minutes for your healthiest, strongest hair. Our restoring shampoo features our exclusive ProteinFusion blend with 5 amino acids and Keratin Protein to penetrate deep to rebuild and strengthen bonds. Our patented bond-building technology rebuilds broken bonds and generates new ones at the innermost core. The AMINO BOND Shampoo will gently lift impurities and prep your hair, while also repairing up to two years of protein loss after one use — leaving hair stronger and more damage resistant. Our Nexxus collections are scientifically proven to support hair health over time. Crafted with our H4 Complex, our formulas restore and protect the four signs of hair health: moisture, strength, shine, and elasticity. Our Amino Bond collection is formulated with our H4 Complex and features a custom ProteinFusion blend designed for all hair types to rebuild existing bonds and generate new ones, leaving hair stronger and more damage-resistant with every use. To use this sulfate-free shampoo, you should message it into our scalp, giving it time to lather so it can start to nourish dry and damaged strands. Then rinse. For best results, use this hair shampoo with our AMINO BOND Conditioner and Intense Bond Treatment. Born in salons and perfected by science, each Nexxus system is crafted with protein blends from nature's most precious ingredients and infused with high performing technologies to bring your hair back to life. Our Nexxus collections were formulated by our team of experts using protein science to identify the precise solutions your hair needs. Discover your collection today.