Deer antler spray — a supplement commonly used in the fitness and sports industries that has a long history of use in Eastern medicine — is pretty much as strange as it sounds. Derived from the tissue found inside deer antlers, it’s reported to work by providing IGF-1 (insulin-like growth factor), a natural growth hormone found inside the human body that has potential to increase muscle mass and support recovery from injuries.
According to an article published by Business Insider, between 20 to 40 percent of professional MLB and NFL athletes admit to purchasing and using deer antler spray (also called “deer antler velvet”). They hope to benefit from its performing-enhancing effects. (1) Some famous athletes turn to deer antler spray in hopes of promoting growth of new tissue cells or gaining strength due to more easily putting on lean muscle mass.