Does the subject want to ask "Wan Yi Black Lycium barbarum and Polygonum multiflorum Hair Care Cream, the official authentic herbal essence, can really make hair black?" You really can. According to official website's inquiry, Wan Yi Black Lycium barbarum L. nourishes hair cream. It has been tested by the national quality inspection department and has the certification certificate issued by the national quality inspection department. It is a good shampoo made of Lycium barbarum powder, raw milk, stabilizer and sweetener, so it can really make hair black.