Cleanse hair with an OUAI shampoo selected for your hair type or wash-day needs. Follow with a matching conditioner or treatment.OUAI Fine Hair ShampooFrom $16.00Sale Pricesize*SelectQuantity*Add to CartBuy NowHow to use Thoroughly wet hair from roots to ends.Lather a quarter-size amount in your hands, then work into roots and anywhere hair touches the scalp.Rinse shampoo. Make sure to squeeze out excess moisture before pairing with Fine Conditioner.