Bottom line: Rogol says it’s “extremely unlikely” that deer antler in any form could offer athletes a boost. “Deer antlers do contain growth factors,” he explains. But it’s a huge leap of faith to talk about an extract doing anything beneficial for human beings, whether it’s slowing aging, developing muscle, or repairing tendons, he adds. Opinions like Rogol’s are one reason the FDA and anti-doping agencies haven’t yet taken steps to ban deer antler products that contain IGF-1.
It is difficult to analyze the quality of Deer Antler Velvet Spray’s ingredients due to their largely untested nature. Deer velvet contains glucosamine and chondroitin, two key chemicals in the body’s joint health processes that our panel of experts highly recommends. It may also increase estrogen production in the body, which can be both good and bad. In some that may be helpful for correcting existing hormonal imbalances, for others it may create them.
Deer antler velvet is used for its purported ability to raise testosterone levels to treat decreased libido (low sex drive), infertility, and erectile dysfunction in men.  It is used in combination with other herbs to treat sexual dysfunction and hormonal dysfunction in men and women.  It is used to treat conditions resulting from deficient kidneys.  Some people use it because of its reputed benefit as an aphrodisiac and muscle strength enhancer.  It is also sometimes prescribed to help alleviate withdrawal symptoms in the treatment of morphine addiction.  
Our Deer Antler Velvet comes from red deer in New Zealand, the premier location for Deer Antler Velvet. Every year, these deer are able to regrow their antlers, which are removed in the pre-calcified state, thus the term “Deer Antler Velvet”. Deer are the only mammals to regrow tissue in such a way and at such a rapid rate, making it high in the growth IGF-1. For thousands of years, these pre-calcified antlers have been used in Chinese Medicine, where they are brewed into a tea to be consumed as a cure for a myriad of ailments and conditions – with the help of our spray, you now have access to these same benefits*.
Ultimately it is too early in the testing process for our experts to be able to recommend Deer Antler Velvet Spray as either safe or effective as a joint health supplement. It is more possible it is effective as a male libido enhancer than as a nutritional supplement, and there is little reason to think that Deer Antler Velvet Spray could do much to actually contribute to the health of the body’s connective tissues. It does not have any anti-inflammatory agents to fight joint pain, there is only the smallest amount of glucosamine and chondroitin, and finally the potential for negative consequences is too high for our team to be able to encourage our readers to consume this product.
The growing market has bred plenty of competition. A company called Now Foods is now making deer antler velvet lozenges. GNC just started selling deer antler velvet capsules called New Vigor from a company called Vitalast and Amazon.com has more than 30 products will deer antler velvet in it including the raw powder from New Zealand, where the most coveted deer velvet is harvested.
Even more intriguing is how the stags manage to regrow their antlers. Scientists have found stem cells at the bases of antlers’essentially ‘blank’ cells that can develop into many different types of cell, such as a skin cell or a cartilage cell. If they could find out what triggers the stem cells and controls their development into antlers, the knowledge could be applied to the regeneration of human limbs and organs. Scientists know that the shedding is initiated by a fall in the hormone testosterone, a change linked to an increase in day length, and they think oestrogen may be a key cellular regulator. However, much more research on a molecular level is required to unravel what is clearly an intricate process.
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. 
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