Our black hair dyeing shampoo (purple) contains ginseng extract and Ganoderma lucidum. It can nourish the hair making it soft and shiny. Its usage method is very simple: Keep your hair dry put on gloves apply an appropriate amount of shampoo to your hair gently massage your hair until the shampoo is evenly spread wait for 15 to 20 minutes then wash your hair and blow it dry. And it can nourish the scalp and is less likely to itch.