There is no such thing as the “most powerful” herb to tonify Liver-Yang. Herbs to tonify Liver-Yang include Ox Knee and Deer Velvet Antler, etc. Doctors will decide on the use of medication based on the patient’s specific condition. 1. Cow’s Knee: It can expel blood stasis and clear the channels (remove blood stasis and dredge the channels), nourish the liver and kidney, strengthen the tendons and bones, and induce blood to flow downward. It is used in treating menorrhagia, dysmenorrhea, lumbar and knee pain, weakness of muscles and bones, headache, dizziness, toothache, mouth sores, vomiting of blood, epistaxis and so on. 2. Deer antler: it can strengthen kidney yang, benefit essence and blood, strengthen muscles and bones, and regulate Chong Ren. It is used in treating deficiency of kidney yang (lack of yang energy in kidney), deficiency of essence and blood, impotence and slippery spermatozoa, infertility with cold uterus, lethargy, fatigue, fear of cold, dizziness, tinnitus, deafness, cold pain in waist and spine, impotence of tendons and bones, and disintegration of menstruation (excessive menstruation or more than a few drops of menstruation) with leucorrhea. 3. Cinnamon: It can tonify fire and help Yang (replenish Yang energy in the body), induce fire to return to the source (inhibit the rise of fire in the kidneys), dissipate cold and relieve pain (relieve pain by removing cold in the body), and warm the meridians. It is used in treating impotence and coldness in the uterus, cold pain in the waist and knees, dizziness and redness in the eyes, cold pain in the heart and abdomen (cold pain felt at the location of the heart and abdomen), vomiting and diarrhea due to deficiency and cold, cold hernia and abdominal pain (acute abdominal pain caused by coldness in the internal organs and feeling the coldness of the wind from the external sources), and dysmenorrhea with menstrual cramps and menstrual closure. The use of herbs should be under the guidance of traditional Chinese medicine, do not blindly use your own medicine, so as not to delay the condition or cause adverse reactions.