1g of Velvet Antler taken daily for 12 weeks in otherwise healthy adult men has failed to significantly alter serum testosterone levels, either total or free testosterone. Another study in otherwise healthy men has also failed to find such an effect on the endocrine profile, with 11 weeks of 1.5g supplementation failing to alter serum testosterone and a lack of effects also noted after 10 weeks of 560mg in males and females who performed a consistent rowing regimen.
As you know I’ve been a Hollywood stuntman and director for over 30 years and during my stunt man career I have accumulated many injuries along with aches, pains and arthritis. Since I’ve been taking your IGF-1 product, my arthritis is 100% better and I’ve forgotten about my injuries. This product is truly amazing and has worked wonders for me. I also appreciate the sleep miracle as it helps me get a good nights sleep and feel great in the morning.
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.