Fat Metabolism* -Besides containing a plethora of nutrition, such as peptides, growth factors and important minerals, which may help to prevent cravings, deer antler velvet also contains ursolic acid, which may be beneficial for increasing fat metabolism, we can, with a little effort and motivational boost, achieve a leaner and firmer physique.* Additionally, research in other fields suggests that it may be responsible for a smaller waist.*

Currently, one study that induced a fracture unto a rat bone and injected 20mg/kg of Velvet Antler polypeptides into the area every other day for 7 weeks noted that fracture healing rate was dose-dependently increased at weeks 4-7 relative to control and that the bone loading weight was increased following rehabilitation with 10mg/kg (60.7%) and 20mg/kg (93% more than control) after 7 weeks.[29] An in vitro study suggested that this was due to a concentration-dependent mitogenic activity on osteoblastic precursors and chondrocytes.[29]

According to modern research, deer antler velvet has shown gonadotropic activity. Studies by both Fisher and Wang indicate that deer antler velvet may increase testosterone levels in men and can help prevent some conditions associated with aging. The estrogen hormone most affected by deer antler velvet is estradiol. Estradiol is a precursor to testosterone.

I know of no scientific evidence to support any of the marketing claims made for these supplements. I discussed your question with Tieraona Low Dog, M.D., an internationally recognized expert in the fields of integrative medicine, dietary supplements and women’s health, and an authority on botanical medicine. She explains that IGF-1 in the velvet promotes rapid growth of the antler. Dr. Low Dog notes that the two studies examining the effects of deer antler velvet supplements taken by athletes have yielded conflicting results. One showed some improvements in endurance and knee strength in weightlifters, but the other found no differences in rowers after 10 weeks of supplementation.

In what might be the most important study done in the United States, a group of scientists took 32 male weight lifters and gave half of them New Zealand Deer Antler Velvet and half of them a placebo for 10 weeks. While the placebo group didn't show any difference in bench or squat tests, those given deer antler velvet saw an increase of 4 percent on the bench press and 10.1 percent on the squat test as compared to the placebo group. The scientists also reported that there was a "significant improvement in aerobic capacity" with the group that was taking deer antler velvet.
In Russia, Korea and China, deer antler velvet is widely used by athletes to enhance performance. In the United States, more and more athletes are looking to deer antler velvet as a training aid, a promoter of recovery after physical activity and injury, and possibly an injury preventative. Deer velvet could improve athletic performance in many ways, for example by assisting strength and endurance, by supporting the oxygen-carrying capacity of the blood, by facilitating minor tissue damage, and by boosting the immune system.

Powdered velvet antler is available in capsule form from health shops. As a general tonic and to fight fatigue, the recommended dosage is usually 1 or 2 capsules (250 to 350 milligrams each) per day. For conditions such as osteoarthritis, higher doses may be used under supervision of a health practitioner. The effects of velvet antler gradually accumulate and are typically seen 8 to 12 weeks.
(Adult) Shake well before each use. As a dietary supplement, spray 3 to 5 times under tongue as needed. Hold for 20 seconds before swallowing for best results. Caution: Do not use if outer seal is broken. Not intended for individuals under the age of 18. Consult your health care provider prior to use if you are pregnant or nursing, have a medical condition, or when taking any medication. *Contains Soy
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.
In another randomized, double blind, placebo controlled experiment (Broeder, 2004), 38 males, all of whom were experienced weightlifters, entered a 10 week strength training program. Those who took deer antler velvet experienced an increase in peak torque and average power relative to the placebo group. They also experienced unexpected improvements in aerobic performance.
In Chinese medicine, deer velvet has been used to treat impotence, female disorders, urinary problems, skin ailments, and knee weakness. It is also employed as a tonic in children with learning disabilities or insufficient growth.16 Koreans use antler velvet to treat anemia and impotence and to stimulate the immune system, treat impotence, improve heart function, muscle tone, lung efficiency, and nerve function.17
“I would like to thank you and your scientists for developing IGF-1. I am a 74 year old post Polio survivor, and IGF-1 has given me more relief and benefits than any product I have tried. IGF-1 is wonderful, it has improved my mobility and given me pain relief like no other product. I also have high sugar that used to range from 180-210, now my sugar is steady at 130. Along with stabilizing my sugar, IGF-1 has also lowered my blood pressure. As an experiment I went off IGF-1 for one month to see if it was doing all this good for me. My pain and loss of mobility returned until I began to use IGF-1 again. IGF-1 is truly a wonderful product, thank you for developing this miracle worker!”
In an ovalbumin sensitized mouse model, 4 weeks of Velvet Antler at 2.5-10mg total (weight of mice not given, assuming 20g this equals 125-500mg/kg or 10-40mg/kg for humans) was able to reduce total Immunoglobulin E (IgE) and Ovalbumin-specific IgE at 14, 21, and 28 days.[21] When challenged with methacholine and subsequently having their airway power measured, it appeared that Velvet Antler exert anti-asthmatic effects in regards to allergies.[21] 
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