Repeated studies have been conducted on the interactions of Velvet Antler and hormones, and all studies have found that this supplement has failed to increase circulating hormone levels. One study found a highly variable increase in power output, which is antagonized by another study suggesting no significant increase in power. For the purposes of performance enhancement, the evidence does not currently support Velvet Antler as a supplement.
Physical Vigor and Stamina: You don’t have to be an athlete to appreciate more energy and stamina. You may have long hours at the office, at home with kids, or at school, in training or partying. Without the energy you need to get through the day, nothing is fun-even the fun stuff. Unlike caffeine or energy boosting drinks which give you a temporary boost, Deer Antler Velvet changes you from the inside out, making increased vigor and stamina a part of your body’s natural response to the demands you place on it.
Currently, one study that induced a fracture unto a rat bone and injected 20mg/kg of Velvet Antler polypeptides into the area every other day for 7 weeks noted that fracture healing rate was dose-dependently increased at weeks 4-7 relative to control and that the bone loading weight was increased following rehabilitation with 10mg/kg (60.7%) and 20mg/kg (93% more than control) after 7 weeks.[29] An in vitro study suggested that this was due to a concentration-dependent mitogenic activity on osteoblastic precursors and chondrocytes.[29]
Tanejeva also tested the effect of deer antler velvet in athletes running three kilometer races. In the experiment, 50 men ran the distance and their completion time was recorded. Deer antler velvet extract was administered to half of the runners and the participants repeated the race.  The group receiving the Pantocrin completed the subsequent race in a faster average time.
Velvet antler is the whole cartilaginous antler in a precalcified growth stage of the Cervidae family including the species of deer, 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 the United States and some other countries as a dietary supplement.
Deer antler velvet can play a pivotal role in helping to not only relieve the symptoms of diseases that affect joints, such as osteoarthritis, they can possibly eliminate them entirely. The way it may do this is through the introduction of chondroitin sulfate and glucosamine sulfate into the body. Both of these compounds are abundant in deer antler velvet. 
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