Deer antler velvet is seen as a possible steroid alternative because it includes something call insulin-like growth factor or IGF-1, which is said to regulate human growth hormone in the body. It’s also seen as somewhat detection free since it can only be discovered through a blood test,

Deer antler velvet is supposed to help you build muscle. It allegedly elevates levels of IGF-1, an important hormone that helps you pack on mass. As “side effects” you also should see improvements in strength and endurance.

In short, it helps to build muscle and improve endurance at the same time!