Simply Smooth xtend keratin replenishing shampoo Tropical restores depleted keratin into hair fibers, enhancing hair strength and elasticity while adding briliant shine. Consistent use will transform hair's texture and overall appearance as well as protect hair from future damage. Xtend keratin replenishing shampoos, with their enticing fragrances, are safe on all hair types and are formulated to benefit hair whether or not a Simply Smooth treatment has been applied. When used after a Simply Smooth treatment, it will prolong its duration. Sodium chloride-free and color safe. Promotes smoothness, reduces frizz and adds briliant shine. Strengthens, restores elasticity and prevents future damage. Impres texture and quality of hair.