Phellodendron is an herb that, if applied topically, has the main effect of removing local oil and at the same time has the effect of improving local blood circulation. If the hair is washed with Phellodendron Bark, it can help to relieve the oil in the scalp area and promote the blood circulation in the scalp. For seborrheic dermatitis of the scalp or hair loss due to the head, it has a certain treatment and relief effect. However, it is not reliable to rely completely on the hair wash to treat hair loss and seborrheic dermatitis, if you need to use Chinese medicine treatment, it is best to also cooperate with other Chinese medicine comprehensive treatment, identification and treatment.