Velvet antler [1] refers to the young horn of sika deer or red deer that is not ossified but has fluff, and it is a valuable Chinese herbal medicine. Pilose antler contains phospholipids, glycolipids, colloids, hormones, fatty acids, amino acids, protein, calcium, phosphorus, magnesium, sodium and other components, among which amino acids account for more than half of the total components. Ancient doctors believed that the essence of deer lies in the horn, while velvet antler is the bud of horn, and its qi is not vented, so it is the most powerful for strengthening yang and benefiting blood. Li Shizhen in Ming Dynasty said in Compendium of Materia Medica that velvet antler "is good at tonifying kidney and strengthening yang, producing lean blood, nourishing marrow and strengthening bones". [2]

Deer is a traditional precious medicinal animal in China. In the existing literature, there is a saying that "a deer is a treasure" in the literature of Han Dynasty, which is a symbol of a panacea. Compendium of Materia Medica records antler, antler, antler glue, antler cream, deer blood, deer brain, deer tail, deer kidney, deer tendon, deer fat, deer meat, deer head meat, deer bone, deer teeth and deer marrow. Can be used as medicine, has extremely high medicinal value and health care function, and can prevent and treat various diseases. And the deer's newborn horn-velvet antler is regarded as "the treasure among treasures".