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.[28] 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.[27]

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.  
(Adult) Shake well before use. As a dietary supplement, take 6 sprays under tongue once per day. 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. * This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Contains 25,000 NG. of IGF-1, IGF-2 and other Growth Factors
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.