Fortify weakened hair with protein power using Redken's Extreme Gift Set, featuring the award-winning Anti-Snap leave-in treatment that provides 5-in-1 protection for sensitised hair. The Extreme Shampoo is formulated with Redken's Strength Complex which contains Amino Acids and Arginine to strengthen and fortify the hair, and Citric Acid to condition and add smoothness. The conditioner detangles and reinforces sensitized hair, leaving it feeling supple and more resilient. Finally, seal in your routine with Redken's Extreme Anti-Snap treatment. This best-selling treatment is enriched with strengthening ceramide and an interlock protein network which helps to 'rebuild' the surface and strengthen the hair's core. After use, hair is fortified against breakage, split ends and mechanical damage, leaving hair with a healthy looking shine.