Use this specially formulated MeiBo ShouWu shampoo to help your hair from turning white. The special ingredient of Shou-Wu will help protect your hair and provide the essential nutrients to help you get the original hair color back. Repeated use of this product for several months is required in order to have the herbs penetrate the scalp. It nourishes and enhances direct absorption of hair, improves hair structure and manageability, it effectively prevents the formation of grey, yellow and greasy hair.