Simply Smooth xtend keratin replenishing deep conditioner restores depleted keratin into hair fibers, strengthening elasticity. This new, smooth hair is easier to comb; reducing future damage. Unusual velvety balm dramatically hydrates thirsty locks, smoothes damaged hair and improves overall structure leaving a uniquely light, soft feel to the hair. Consistent use will result in an overall improvement of the texture and quality of hair. Xtend keratin replenishing deep conditioner, with its light, delicate fragrance, is safe on all hair types and is 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. Adds weightless hydration to thirsty, dry hair. Seals hair cuticle, reduces frizz and tames fly-aways. Detangles and heals split ends. Builds body and improves overall manageability. Especially beneficial for fine, thin, lifeless and color treated hair.