Keratin One 'n Only Brazilian Tech Sulfate-Free Smoothing Conditioner is a daily conditioner that helps replenish moisture levels to nourish dull, weak, aging hair. Helps to restore elasticity, strength and vibrancy. Helps to restore youthful shine to hair. Formulated for straightened, permed or color-treated hair. Hydrating properties leave hair feeling renewed and restored with youthful radiance.