The company has found that powders have only about a 15–20 percent absorption rate of IGF-1. This is due to how the digestive system breaks down the powder. Nutronics states that their “proprietary sublingual spray delivery system” is superior to many competitors because it offers “enhanced bioavailability” of IGF-1. They also point out that “it is not the milligrams of Deer Antler Velvet in the product, it’s the content of IGF-1 and other Growth Factors in Deer Antler Velvet, that makes the difference.”(6)
The product smells like lemon-scented cleaner and bears a resemblance to murky pond water. I hesitantly tried the stuff and found it surprisingly palatable, with a lemon taste, but not too sour and slightly sweet. The directions say to take 14 drops under the tongue, three times a day, but I stopped after one dose — so I probably don't have a good chance of reaping the benefits, if there are any.
Both a lack of sexual desire and sexual performance issues like erectile dysfunction can be traced back to a low testosterone level. Deer antler velvet can help increase the production of hormones related to sexual functions, including testosterone and its metabolites. In this way, deer antler velvet can help as not only an aphrodisiac but also as a possible treatment for erectile dysfunction.
Mental Capacity and Alertness: If you’re tired of feeling like you’re experiencing life through a fog, Deer Antler Velvet can help fade the fog and give you the clarity of a good night’s sleep combined with a week’s vacation. You come at things sharp and focused. Instead of struggling to remember things words, decisions, insights and just your general alertness are sharpened.
S.W.A.T.S. Fitness and Performance was a dietary supplement company that sold deer antler spray and other products. The owners began distributing their products to NCAA and NFL athletes in 2008. The controversy initially started in March 30, 2009 when Alabama athletic officials sent a cease-and-desist letter to the company's owner that stated: "Refrain from using current student-athletes to endorse products. Refrain from contacting current student-athletes. Refrain from giving or selling products to current student-athletes."  The letter was then sent again in 2012.
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.