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.

Unfortunately, the potential problems with IGF would seem to negate any of these theoretical benefits.  It has been shown that improper use of hormones such as dehydroepiandrosterone (DHEA), androstenedione, and human growth hormone may increase the risk for development of prostate cancer or promote the growth of existing prostate cancer by raising IGF-1 levels.  Therefore, men who are taking supplements with IGF in it (or those that raise IGF levels) could theoretically be putting themselves at an increased risk for prostate cancer.  Again, it hasn’t been rigorously studied so it’s impossible to know for sure, but if you have any risk factors for prostate cancer, it’s probably best to avoid taking this supplement.  

Aphrodisiac* - For a long time the alcohol extract has been used to strengthen reproductive organ function, but modern studies of deer antler velvet results are inconclusive concerning women and from men. Although some people do report benefit in intimacy, this may be because of the performance, blood circulation and stress adaptation effects.* So in other words, if your supplement doesn't have the alcohol extract in it don't expect the benefits of supplements made with it.*
Tonic Adaptogen* - This is a fancy concept that references the research into supplements that elicit a strengthening effect on the body and its systems.* They are tonic in action and stimulate clean holistic energy and prevent fatigue while helping us to overcome stress and maintain strong immune systems.* Due to some of the following actions we will see that this stress adaptation is generally physical in nature.
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. 
The best part about our 100% top grade health supplement line? No major side effects! Regardless of your age or activity level, any of our formulas can help you safely raise your IGF-1 levels. If you are serious about working out (as are professional athletes, bodybuilders, Ironman competitors, etc…), or suffer from a debilitating ailment (such as fibromyalgia, MS, diabetes, acute inflammation, etc…) Nutronics’ natural remedies can help you. If you are just trying to stay fit, get into shape, or don’t exercise at all, Nutronics Labs IGF-1 Plus can help you live the healthiest lifestyle possible! Nutronics Labs hit the market over 25 years ago and is still the leading provider of completely natural and safe IGF-1 deer antler velvet supplements. Accept no substitutions.

L-Arginine: An amino acid usually found in red meats that is important for the body’s ability to manufacture proteins. L-Arginine has been used to treat conditions like high blood pressure, congestive heart failure, blocked arteries, and erectile dysfunction. L-Arginine is safe for most people, however it should not be taken by women that are pregnant or breastfeeding.
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