OUAI Detox Shampoo in Beauty: NA. OUAI Detox Shampoo in Beauty: NA. Been on a dry shampoo binge? Time for a detox. OUAI's Detox Shampoo is formulated with Apple Cider Vinegar to act like a toner for the scalp by restoring the natural pH levels, preventing moisture loss to keep hair healthy and shiny, while Micellar Water acts like a magnet for dirt, oil, and other impurities to deeply cleanse them away. It also removes buildup from styling products or hard water deposits, leaving hair feeling refreshed & super clean. Here's your fresh start, see you next week.. Suitable for normal hair. Cruelty-free. Free of Formaldehydes, Formaldehyde Releasing Agents, Phthalates, Mineral Oil, Retinyl Palmitate, Oxybenzone, Coal Tar, Hydroquinone, SLS, SLES, Triclocarban and Triclosan. 10 fl oz/ 300 ml. Thoroughly wet hair from roots to ends with lukewarm water and squeeze out excess moisture. Lather a quarter size amount of shampoo in hands, part hair using fingers and apply as close to the scalp as possible. Let set for 1 - 3 minutes, then rinse. Rinse with cold water to close the hair cuticle and add shine. OUAR-WU86. FG-0129-A-00. Founded by hair stylist to the stars Jen Atkin, OUAI - pronounced way - originated HAIRGOALS. The mane addicts at OUAI believe that life is hard and looking good should be easy. That's why their line of luxury shampoos, conditioners, and styling products was designed to nourish hair and bring out its natural beauty - no glam squad necessary.