The Sebastian Professional No.Breaker Leave-In Spray works to fortify weakened hair, supporting up to 99% less breakage*. Designed to be kind to your locks, the dual-benefit formula also acts as a styling aid. Apple acid and styling polymers target the cuticle, helping to reinforce hair bonds while restoring the look of dry, damaged strands. Perfect for hair compromised by hot tools and chemical treatments, the hybrid bonding and leave-in spray works to promote a strong, healthy-looking mane. *vs a low conditioning shampoo.