For best results we recommend shampooing your hair twice after applying the Hello Hair Hydrating Mask. Please keep in mind that this product is pure oil, so thoroughly shampooing your hair with high-performance products is definitely encouraged. The Hello Hair Natural Hydrating Shampoo is the perfect high-performance and natural shampoo to cut through the oils of the Hydrating Masks. If you are still having trouble, try using bicarb soda as a substitute for shampoo. Bicarb soda is a great natural way to clarify your hair - just mix it with enough water to make a paste and use in place of shampoo.