Rice Water Hydrating Shampoo Ingredients such as rice water and yuzu are the secret to not only strengthening the hair but improving hair growth, adding shine and reducing split ends. This shampoo not only smells amazing but will give your hair the boost it needs and deserves. How To Use Apply a generous amount of our Rice Water Hydrating Shampoo onto hands and massage into wet hair and scalp until lathers. For best results shampoo twice. Follow up with our Rice Water Clay Masque and other great products made with rice water for hair.