Deer antler velvet may help to increase macrophage activity. Macrophages are a type of white blood cell (immunity cell) that digests cellular debris, foreign substances, cancer cells, and other microorganisms. Macrophages help to stimulate defense mechanisms in the body by recruiting immune cells such as lymphocytes. With this increased number of white blood cells, your immunity system becomes strengthened and will have a better chance at fighting off a sickness or infection.
Although the site states that this product shouldn’t cause ill side effects, most western medical practitioners would dissuade you from taking this because the components found in deer antlers haven’t been approved by the FDA. More importantly, IGF-1 has been proven unstable. So, it’s best to speak to your physician, especially when you’re currently taking other forms of medication.
But when it comes to sprays or pills, there’s little evidence that deer antler offers performance enhancing benefits of any kind, says Alan Rogol, M.D., an endocrinologist at the University of Virginia. Rogol is also part of a small team of doctors that assists anti-doping agencies in determining if and when athletes can use certain controversial substances.
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." 
Keeping true to our original Deer Antler Spray formula, Deer Antler Velvet Extract HERS is all-natural and contains the same amount of Deer Antler Velvet as the original, coming to us straight from red deer in New Zealand. Like the original, our new product is high in the growth hormone IGF-1. This new spray, however, is testosterone free and contains: collagen type II, biotin, green tea, and epimedium, all of which have benefits specially geared toward female athletes. Epimedium, known in Chinese medicine as “yin yang huo”, has the same effect as estrogen, can increase libido, and produce osteoblasts, the cells that secretes the matrix for bone formation. This promotes strong bones, and aids in the prevention of osteoporosis. Collagen, is a protein that forms the strong, flexible white fibers of the body's bone, cartilage, and connective tissue, and is vital for tissue regeneration. Biotin can speed up metabolism, improve glucose levels, and improve brittle nails. Green tea, is one of nature's most powerful antioxidants, and has been linked to cancer prevention, Alzheimer's prevention, the prevention of obesity, and countless other health benefits.
I still coach baseball, and I have a son who is in college and is looking forward to the MLB if it is in the cards for him, it is, but he needs this college for the maturing process. This led me to making that first purchase of Deer Antler Spray. I am not on those awful doctor narcotics anymore, and my left side pain is gone totally! I wish that I could send a picture of my side because the swelling is there, not as much as it used to be though, and absolutely no pain! I have the ‘skinny complex’, and when I started this program I was 6′ 1″ and 137.5 pounds. My mean (average weight) is 175. I am back up to 165 being as we just received our second order recently; it doesn’t take long for my 1,000 mph metabolism to slow down due to this Antler Spray.
World harvest extends far and wide. The farming of deer species for their velvet antler has been occurring for a long time in China and Russia. The Asian industry raises a predominant amount of sika, aka. spotted deer, on private and communal farms where they are well cared for by private owners. Quality of a this profound botanical is of utmost importance. Farms in Asia it is also both industry and government regulated for quality, safety, and the welfare of the animals.
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.