Velvet antler is the whole cartilaginous antler in a precalcified growth stage of the Cervidae family including the species of deer such as elk, moose, and caribou. Velvet antler is covered in a hairy, velvet-like "skin" known as velvet and its tines are rounded, because the antler has not calcified or finished developing.
Velvet antler preparations are sold in China as part of traditional Chinese medicine, and in some countries as a dietary supplement. Marketing claims of health effects are not supported by research, and the Food and Drug Administration has warned companies selling the products about false advertising.