More recent tests (Slievert, 2003) confirm deer antler velvet’s effects on muscle strength and endurance. In a randomized, double blind, placebo controlled experiment, 18 males entered a 10 week strength training program. Those who took deer antler velvet showed an increase in maximal aerobic capacity, an increase in strength in the bench press and leg squat, and decrease in body fat relative to the placebo group.
As men and women get older, they naturally start producing less Human Growth Hormone (HGH). So levels of IGF-1 also decline with age. The liver produces IGF-1 when HGH is released. HGH is converted to IGF-1. Aside from someone’s age, IGF-1 levels will vary depending on a person’s sex (men generally have more), level of activity, their diet, genetics and lifestyle.
Using deer antler velvet benefits sexual functions and libido by helping to increase gonadotropin hormones which include luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Luteinizing hormone (LH) and follicle-stimulating hormone are hormones that stimulate the sex glands. The stimulation of the sex glands is pivotal for sexual reproduction. Without the presence of the gonadotropin hormones, the sexual organs will fail at their purpose and the individual will be considered infertile. As the deer antler velvet promotes an increase in LH, the LH causes the testes to produce more testosterone.
On January 30, 2013, Vijay Singh professional PGA Tour golfer was caught unaware and openly admitted to the personal use of deer antler spray which contained a banned substance at the time. A week later the World Anti-Doping Agency (WADA) lifted the ban on deer antler spray, but with urgency, "Deer Antler Velvet Spray may contain IGF-1 and WADA recommends therefore that athletes be extremely vigilant with this supplement because it could lead to a positive test."  The consensus opinion of leading endocrinologists concerning any purported claims and benefits "is simply that there is far too little of the substance in even the purest forms of the spray to make any difference,"  and "there is no medically valid way to deliver IGF-1 orally or in a spray." 
The latest and greatest performance enhancer, if you've been living under a rock, is deer antler velvet. On the surface, it seems like it could make sense. The coating on the antlers of young male deer that contribute to the growth of that part of their body could help athletes. First, the NFL prohibited Oakland Raiders coach Hue Jackson from endorsing it. Now, according to SI.com, Major League Baseball is warning players about using it.
*DISCLAIMER: Testimonials may not reflect the typical user's experience and are not intended to represent or guarantee that anyone will achieve the same or similar results. The statements made are not to be construed as claims made by Antler Farms®. Individuals may have different responses or results than those indicated. Some customers have received free product, discounted product and/or compensation for their honest testimonials. All thoughts and opinions expressed herein are their own and not influenced by Antler Farms® in any way.
In a randomized, placebo controlled test in 2004, researchers at the University of Alberta, Canada, placed 18 males from the Edmonton Police Force into a 9 week strength training program. The results showed that deer antler velvet increased the strength and endurance of the subjects relative to the control group. The researchers found that use of deer antler velvet significantly increased blood plasma testosterone levels.