Most of the world's supply of velvet antler comes from Sika deer, red deer and elk or wapiti, including a large deer ranching industry in New Zealand. New Zealand is the world’s largest producer of velvet, producing 450-500 tons of red deer velvet antler annually. China produces 400 tons of predominantly Sika deer velvet antler annually. Russia produces 80 tons annually. United States and Canada each produce 20 tons annually.
One double-blind study published in the International Journal of Sports Nutrition and Exercise Metabolism tested whether or not deer antler velvet powder or extract had an impact on aerobic performance, endurance and “trainability of muscular strength” compared to a placebo. The subjects were adult males. They were given either a placebo, or deer antler extract or powder supplementation over a 10-week period while undergoing a strength-building routine. The men were measured for muscular strength, endurance, and VO2max before and after using deer antler. These results were determined by measuring circulating levels of testosterone, insulin-like growth factor, erythropoietin, red cell mass, plasma volume, and total blood volume.
I have not felt much differently since I started taking the deer antler however I did notice that when I do the arm bike I can do it faster and longer without weakness. Now you would say so big deal. For me that is a huge difference that I am tracking. I NEVER was good on the arm bike even when I was in shape it felt more labored. I am horribly out of shape for me and yet I can do this with comfortable effort. I also have taken the REM product Anna Nova health offers. Now this is where I DO notice a difference again but much more that the daily effect. My sleep has regulated to where most nights I have been able to sleep at least 5-6hrs straight. I have done that in the past. What I notice is that my body actually FEELS rested like i went into a deeper sleep. I have tried everything to sleep. Some things that are suppose to help actually work the opposite. Most all drugs have horrible effects on me and I NEVER wake up rested. I wake up foggy doppy and irritable-if I sleep. I have to say something about this works. Maybe it effects my body chemistry in manner it needs. I don’t know but its not because I WANT it to work. I have taken all this stuff tried all this stuff expecting failure. I have not slept well my whole life. Since the head injury even if I do sleep I’m not rested nor do I feel that my body relaxes. Since I have taken this after two weeks I noticed a big difference. 5hrs for most people is horrible- for me its good 6 is great and my ideal sleep. I am staying on it for another couple months to see if I feel or notice any other differences. As far as helping “heal” my body WIM hof cold exposure works the best for my brain so far. Brain injury/neck injury people are different from those without. We have dysfunctional nerves neurotransmitters and path waves that cause things to happen that we need to find other ways to fix. Drs just don’t listen and pay attention to people who are in tune with their bodies. Its too bad cause they could learn a lot from us.
Deer antler velvet has been used in China for over 2,000 years. More recently, Soviet scientists in the 1980s tested the effects of deer antler velvet on the performance of elite Russian athletes, and the results were astonishing. Deer antler velvet helped increase the strength and muscle mass of Russian athletes, and speed their recovery time from exercise.
A study conducted in rowers given 560mg Velvet Root for 10 weeks of training has failed to find improvements in rowing performance or other parameters of strength (bench press and leg press) in both sexes. 1350mg of Velvet Antler twice daily (daily dose of 2,700mg) for 10 weeks was noted to increase leg strength (assessed via leg press) more than placebo with no differences in the bench press; this study had a 44% dropout rate and conclusions that can be drawn are limited.
Assuming that deer antler velvet is the next biggest thing in muscle building and athletics isn’t just a massive leap of faith, it’s something that can’t be supported by science in any way, shape, or form. So why is it illegal? Because it’s still a synthetic, man-made growth hormone precursor. Those are illegal, according to most professional sports.
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.
In September, 2013, the headquarters of S.W.A.T.S. was raided and ordered to be shut down by Alabama's attorney general citing "numerous serious and willful violations of Alabama’s deceptive trade practices act". Among the violations were "claims that the company made about a number of products that were unsupported by scientific research. Some of these products were marketed as 'dietary supplements.'"  The assistant Alabama attorney general "says that Deer Antler Spray is dangerous and its sellers are law-breakers." 
Joint Health & Injury Recovery* - Due to certain constituents recognized by the government one will benefit by better joint health, plus the content of proteins similar to our own bodily structures are plentiful within deer antler supplements, such as type II collagen.* Another involved and interesting cellular activator known as hyaluronic acid has many additional benefits for repair and regeneration.
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.