Our Polygonum multiflorum shampoo soap contains polygonum multiflorum extract, ginseng extract and rosemary oil. It can re-darken and brighten hair, repair hair structure, eliminate hair mites, reduce dandruff, tighten hair and prevent hair loss. The way to use it is simple: first wet your hair with warm water, then rub soapy lather into the palm of your hand, apply the lather evenly to your hair, massage it off, and finally rinse the lather with clean water. Consistent use can promote the production of melanocytes, repair the scalp structure of hair, eliminate hair mites, and make your hair thicker and darker.