Achieve long-lasting smoothness with Tresemme Keratin Smooth Finishing Hair Oil. Featuring Marula Oil, this professional-quality hair treatment provides up to 72 hours of frizz control* when used with Tresemme Keratin Smooth Shampoo and Conditioner, transforming frizzy hair into a luxuriously smooth and sleek look. Our hair care experts carefully select every ingredient to ensure your hair receives the best possible care. For a salon-quality finish, rub 1–3 pumps of oil between the palms of your hands and apply throughout the lengths and ends of wet or dry hair.