I never take a product without doing my research, because it is always good to know what you're putting in your body. I looked at several sources including scholarly journals about many of the ingredients in Deer Antler IGF-1. It is a great product, and has been proven to work without ANY side effects. This product has definitely been helping with my lean muscle gains during my improvement season. It gives me energy before a workout, and it gives me some great vascularity while I'm lifting!

People with osteoarthritis take chondroitin sulphate as an anti-inflammatory and velvet antler contains a high concentration of this compound, as well as significant amounts of glucosamine sulphate. Both appear to inhibit the depletion of bone and cartilage. The use of velvet antler in treating rheumatoid arthritis is being studied at the University of Calgary and the University of Alberta.
First, the following disclaimer: Products that are sold as supplements (as opposed to medications) are not regulated by the Food and Drug Administration so they are not tested for safety, efficacy or standardization.  In other words, when you buy a supplement, there is no guarantee that what is in the bottle has been tested to see if it even contains the ingredient in question, let alone whether the ingredient actually does what it claims to.  (That’s not a value judgment, just the facts.)
The word antler is derived from the Latin Anteoculae, meaning "in front of the eyes." Antlers are present in almost all members of the deer family Cervidae. The first documented evidence of deer velvet as a medicinal was found on a scroll recovered from a tomb in Hunan China dating back 2000 years. The use of antler dates back to the Han Dynasty 206 BC to 220 AD. A 16th century medical text, Pen Ts'ao Kang Mu, lists several antler preparations including pills, tinctures, and ointments. In traditional Chinese medicine, velvet antler has been used for over 2000 years as a tonic, to improve bone health, to nourish the blood, reduce swelling, and to treat impotence. Later research on deer antler dates back to the 1980s in Russia. Hundreds of articles have since been published including those documented by Chinese, Korean, and Japanese scientists.14, 15

Deer antler, or more specifically ‘velvet antler”which refers to the soft, newly grown antler before it hardens, not just the velvet skin’has been used in Chinese medicine for 2000 years. Often prescribed as a tonic, it is reputed to boost the immune system, improve stamina and reduce swelling. It is also prescribed to promote wound healing and strengthen bones and said to be an aphrodisiac and to enhance fertility. In China, velvet antler is seen as second only to ginseng in its restorative powers.
Nutronics Labs IGF-1 Platinum is the strongest Antler Velvet on the market. With our 300,000 Nanograms of IGF-1, IGF-2 & other growth factors from the World's Purest Deer Antler Velvet, IGF-1 Platinum helps individuals of all backgrounds train harder, build lean muscle and speed their recovery time, this is by far the strongest and most effective product on the market. This can be used by anyone who wants to achieve optimum IGF levels and a healthy lifestyle.
However, if you’ve never taken deer antler product before, chances are you’re considering trying it because you have a specific concern or problem and someone has suggested you try Deer Antler Velvet, or you saw something on the Internet and here you are. You’re wondering if this is the right product, or whether you should keep looking, right? So, here are the Top 10 Benefits of Deer Antler Velvet.
First, the facts: Deer antler has been a popular element of Eastern medicine for centuries. And—like red meat, eggs, or milk—deer antler contains small amounts of insulin-like growth factor 1, or IGF-1, explains Oliver Catlin, president of the Banned Substances Control Group (BSCG), which tests dietary supplements for illegal performance enhancers.
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One study[14] (duplicated in Medline[15]) that used a water extract of Velvet Antler at 50-200mg/kg failed to inhibit the pain killing effect of Morphine yet reduced the rate at which rats became tolerant to Morphine over the course of 6 days when taken an hour prior to Morphine each day.[14] Rats who were given Velvet Antler prior to Morphine also experienced 26.6-36.6% less withdrawal (dose-dependent) and reduced reverse tolerance and dopamine receptor supersensitivity relative to morphine control.[14]
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Studies have found that deer antlers themselves contain a highly concentrated amount of essential trace minerals, fatty acids, amino acids and growth factors that can all support the immune system. This includes the gastrointestinal tract, where the majority of the immune system is found. Antlers contain minerals such as: calcium, phosphorus, magnesium, iron, potassium and sodium in addition to numerous minor components.
The first question to ask, is why? Why are you considering this supplement? A supplement is not intended to fix a crappy diet or poor exercise program. A supplement is intended to be just that, a supplement to your existing good diet/good exercise program. And if you’re eating a well-rounded diet, then there’s really no need for supplementation at all.
Indeed, within weeks you may begin to notice less extra weight around the waist and a firmer belly  (a.k.a. a smaller "spare-tire").* We tell them, "That is because your hormones are working better and why you are looking and feeling better from all that hard work exercising." We get a spare-tire because our body gets tired, Your new thing to do with your nutrition and fitness program will remove that spare-tire and replace it with a lean and solid waist that you and others can be proud of.

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.