Er Zhi Wan does not treat hair loss, this product is used for conditions caused by yin deficiency of the liver and kidneys (insufficient yin fluid in the liver and kidneys) and should be used in accordance with your doctor’s instructions. Erzhi Pill is composed of (steamed) chasteberry and Murraya japonica. It has the effects of nourishing yin to stop bleeding (nourishing yin fluid to stop bleeding) and tonifying the liver and kidneys. It is used for dizziness and tinnitus, soreness and pain in the waist and knees, dry throat and nose, and heavy menstruation caused by yin deficiency in the liver and kidney. Adverse effects of this product are not clear, and it is forbidden for those who are allergic to Er Zhi Wan. People with cold and fever should not take this product. Therefore the drug has no significant role in the treatment of hair loss. Hair loss is caused by congenital factors, systemic diseases, infections, neuropsychiatric factors, endocrine disorders, skin diseases, drugs and other reasons, should be standardized under the guidance of the doctor for the cause of the treatment.