WHAT IT IS A keratin infused anti-breakage sealant. WHAT IT DOES Keratin protein one of the primary building blocks of hair penetrates the hair shaft bonding repairing and smoothing while adding strength elasticity moisture and shine and protecting against further structural trauma. This light weight serum reinvents dry damaged hair while instantly mending split ends and reducing breakage. Panthenol and Silicones improve moisture soften smooth and add shine to hair while providing thermal protection. Polyphenol Flower Extracts Blend an anti oxidant blend of sunflower seed extract lavender clover carnation and marigold extract helps prevent color fading. Repair Serum is made with an alcohol-free formula in a soothing base that won rsquo t dry out hair.