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)
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.  

If you have any existing medical condition that requires taking medication, always consult your physician before taking any new products. Discuss if deer antler spray will be safe for you to use if you have a history of serious hormonal problems, heart disease, liver or kidney disease, or any other serious condition. It’s also not wise to stop taking any medications you’ve been taking or to end physical therapy sessions/exercises because you’ve started taking deer antler spray. Always follow up with your doctor or therapist if you have questions about changing your recovery plan regarding an injury or illness.

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.


I took red mountain deer velvet and it really messed my stomach up. I now have cramps and bloating all the time plus it feels like my stomach shrank…I can’t eat like I used to. It was a big mistake to take that stuff. Do you know of any way I can get my stomach back to normal??? Can you recommend someone who knows a lot about deer velvet?? I have been suffering terribly since I took that junk…it’s been about 2 years now!!!! My stomach has never been the same since I took that poison!!
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