It should be Yi Kidney and Wu Hair Oral Liquid, which has the efficacy and effect of tonifying the liver and kidney, and making hair black. Yi Kidney and Hair Oral Liquid is a proprietary Chinese medicine, which is composed of Radix Polygoni Multiflori, Radix Angelicae Sinensis, Radix Polygoni Multiflori, Fructus Lycii, Radix Aromaticae Sinensis, Poria, and Radix Achyranthis Bidentatae. In this medicine, bone marrow tonic warms the kidney and helps yang (warming and tonifying the yang qi of the kidney); wolfberry nourishes the liver and kidney, benefits the essence and brightens the eyes (tonifying the essence and promoting the recovery of vision); Sha Yuan Zi nourishes the kidney and helps yang, nourishes the liver and brightens the eyes. In addition, in this medicine, Cow’s Knee nourishes the liver and kidney and strengthens the muscles and bones; Poria relieves water and seeps out dampness (promoting the flow of water to dispel dampness), strengthens the spleen and calms the heart; Polygonum multiflorum detoxifies the toxin and eliminates carbuncle; Angelica sinensis nourishes blood and activates blood circulation, regulates menstruation and relieves pain (regulating menstruation and relieving menstrual pain). The combination of the above herbs is effective in nourishing the liver and kidney and making hair gray, and is often used in the treatment of symptoms such as hair loss and premature graying caused by deficiency of the liver and kidney. The adverse effects of this product are not known. Attention to allergy to this product is prohibited, pregnant women are prohibited from taking, cold and fever patients should not take, hypertension and other chronic diseases, children should be taken under the guidance of a physician. It is recommended that patients in need of treatment seek medical attention in a timely manner, do not take medication without authorization.