The fast-acting PAUL MITCHELL Smooth Sealing Rinse smooths and softens hair after the very first use, reduces frizz, evens the hair surface and gives it a healthy shine. Squalane, obtained as a by-product of olive oil production, restores the hair’s natural moisture balance, smooths the hair fiber and seals the cuticle layer, making hair more manageable and reducing the appearance of split ends. Suitable for all hair types, including color-treated hair. Vegan formula. May create a slight warming sensation while working.