Speed Exercise Recovery - Depends which way you look at, but in general it really depends on why you would need it. If you think this works like synthetic anabolics that helps you recover quicker and train more you are grossly mistaken. But if you have joint issues, or desire the benefits of increased blood flow assisting and conversion in the liver, or need a boost to tissue regeneration than this is smarter thinking on your part.
There is an increasing amount of scientific evidence supporting the benefits of deer antler velvet from decades of research carried out in Russia, Korea, China, Japan, Australia and New Zealand. This research has given credibility to deer antler velvet’s traditional usage and validated recommendations for its inclusion as an everyday health supplement. Almost 250 papers have been published since 1930 on the manufacture, composition and biochemical effect of deer antler velvet. Studies on deer antler velvet and the corresponding findings are described below.
Although previously found on the World Anti-Doping Agency's list of banned substances, Deer Antler Spray was removed in 2013 when it was deemed completely safe and legal to consume prior to athletic activity. Deer Antler Spray has been known to speed up the rehabilitation process of injuries, especially injuries effecting cartilage. It has also been known to boost endurance and strength, increase muscle mass, decrease fat, and raise one's testosterone levels, thus increasing libido. The use of Deer Antler Velvet Spray has been linked to several athletes, including football star Ray Lewis, who is rumored to have used it following an injury to his tricep in 2013.
“Nutronics Labs Deer Antler Spray is an incredible product. After just a few days of using it, I noticed a significant decrease in the chronic knee arthritis pain I’ve suffered from for many, many years due to dancing and sports injuries. As an added bonus, my ENTIRE body suddenly felt lighter, and generally pain free…it wasn’t until taking the product that I realized most of my joints had been stiff and achey. I had been living in pain for years without even realizing it, having become accustomed to being constantly uncomfortable and sore. I was able to work out harder, recover faster, and noticed significantly increased flexibility and overall mobility. I noticed substantial improvement in muscle tone.
My name is William Gucciardo. I am fifty-four years old and have been exercising and taking nutritional supplementation for many years. I was recently introduced to IGF-1, and have been taking it for three weeks. Although I have been working out six days a week for the past several years, I have recently noticed an increase in upper body muscle tone and overall strength and endurance. I have also noticed that minor stiffness that I daily experienced upon arising in the morning is gone. My body feels stronger with an overall feeling of well being. I can only attribute these changes to the addition of IGF-1 to my supplementation program, as this is the only change that I have recently made. I do not know what further benefits I will receive from taking IGF-1 daily. If you are willing to try something new with the possibility of improving your health and well being, I would recommend trying this product.
Deer Antler Velvet Spray is an extract that’s taken directly from the material that grows on the outside of the antlers of deer, elk, moose and caribou. Their website suggests its use for anyone that is looking to counter the effects of light exercise, mild muscular strain and exertion, and some arthritic conditions. In addition to providing joint support, Deer Antler Velvet Spray is said to balance hormone levels, build muscle, boost sexual performance, and improve immune function.
Osteoarthritis is caused by the loss of cartilage in bone joints. In normal joints, cartilage serves as a buffer between bones. Usually the body replenishes cartilage as it wears away, but when osteoarthritis occurs, cartilage deteriorates faster than the body can replace it. Eventually, the bones begin to rub together, causing pain, swelling and loss of joint mobility. Most treatments for osteoarthritis attempt to reduce pain and maintain joint function, but these treatments do little to restore joint health.
A 2014 study published in Evidence Based Complimentary and Alternative Medicine tested whether or not deer antler extract would have an effect on fatigue in mice who were led to swim distances. The findings suggested that deer antler “might increase the muscle strength through the upregulation of genes responsible for muscle contraction and consequently exhibited the anti-fatigue effect in mice.” Deer antler seems to have a positive effect on genes involved in nine different signaling pathways that affect muscles, endurance and fatigue. These include GnRH signaling pathway and insulin signaling pathways, in addition to levels of troponins. (8) Deer antler may contribute to increases in muscle strength by increasing Tpm2 expression. This affects how muscles take up proteins and repair themselves. Other studies show some evidence that deer antler extract helps prevent muscle fatigue by activating the lactate dehydrogenase activities and reducing the levels of blood lactic acid and serum urea nitrogen.
Tissue Growth* - Ancient use was as a growth tonic for underdeveloping children and as a gland activator for the glandularly deficient.* It was also recommended to maturing people because of this interesting action on the body.* In modern times it has been discovered that very small amounts of key constituents, called growth factors, signal cellular structures for regeneration and growth, and are found in deer antler velvet extract itself and in larger amounts within the circulating blood of those who take it.*
Many people from many cultures use it. Throughout history it has been used by the American Indians, Europeans, Romans, Russians, and Asians as an alcohol extract. Often it was easily made into soups for its strengthening bone broth protein full of raw material for tissues, joints and bone. The most complete ancient literature is the Chinese texts, which give it top classification for over 2,000 years.
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." 
Reports claim deer antler helped Ray Lewis overcome his recent triceps tear, and Vijay Singh has admitted to using a spray supplement. University of Alabama football players also allegedly used deer antler sprays leading up to the 2013 BCS National Title Game. Whether or not those reports are true, one thing is certain: There’s not much proof that deer antler is a performance enhancer or a miraculous healer.
Deer antlers are the only mammalian bone structures to regenerate completely every year.1 Deer antler velvet is the epidermis covering the inner structure of the growing bone and cartilage, which develops into antlers.2 This tissue grows each spring on male Cervus sp. (North American elk and red deer) and should be removed by a veterinarian or certified farmer. The ethics, including use of local anesthetics, and procedures of harvesting antler velvet have been reported.3, 4, 5, 6 Velvet yield depends on several factors, including season, parasites, or injury.7 After removal of the deer velvet, it is collected and then frozen or dried prior to its manufacture into various "medicinal" forms including powders, extracts, teas, capsules, and tablets. Each part of elk velvet contains varying compounds, but the deer antler velvet contains the largest concentrations of those found to be beneficial. (Antler also has been sold by the slice). Heating during processing may reduce or destroy the purported beneficial effects of velvet antler. Various preparation methods, including freeze-drying and non-heat-producing methods have been reported.8, 9, 10, 11, 12, 13
A systemic review on human interventions makes note of a study conducted on patients of osteoarthritis (Edelman et al. 2000; cannot be located online) which found improvements in joint pain symptoms relative to baseline in the Velvet Antler group and not placebo, although a lack of information on blinding and randomization precludes results that can be drawn from this study.