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

A systemic review on human interventions[25] makes note of a study conducted on patients of osteoarthritis (Edelman et al. 2000; cannot be located online) which found improvements in joint pain symptoms relative to baseline in the Velvet Antler group and not placebo, although a lack of information on blinding and randomization precludes results that can be drawn from this study.
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.  
All male members of the deer family, including elk, moose and reindeer (caribou), grow a new set of antlers each year’from scratch, in just a matter of months’then shed them at the end of the annual mating season. The ability to regenerate such large appendages each year is unique to this family among mammals and rare in the animal kingdom as a whole (horns, in contrast to antlers, are permanent and cannot be regrown). Understanding how it happens could have significant implications for human medicine, particularly in the fields of wound healing and organ regeneration.
In Asia, velvet antler is dried and sold as slices, or as a powder which may be boiled in water, usually with other herbs and ingredients, and consumed as a medicinal soup.[6] In the traditional commercial trade of Korea and China, whole stick antler velvet is divided into three sections based upon their supposed properties. Although there is an absence of uniform standardization, these sections are known as the wax piece (uppers or tips), the blood piece (middles), and the bone piece (bottoms): the wax piece may be marketed as a growth tonic for children, the blood piece supposedly for joint and bone health, and the bone piece supposedly for calcium deficiency and geriatric needs.[2][5][9] Early commercial activity in Russia between the 1930s and 1980s led to the production of an alcohol extract from deer antler velvet marketed under the Russian drug trade name Pantocrin (also pantocrine or pantokrin).[10][11] provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Data sources include IBM Watson Micromedex (updated Nov 1st, 2018), Cerner Multum™ (updated Nov 1st, 2018), Wolters Kluwer™ (updated Oct 31st, 2018) and others. To view content sources and attributions, please refer to our editorial policy.
L-Arginine: An amino acid usually found in red meats that is important for the body’s ability to manufacture proteins. L-Arginine has been used to treat conditions like high blood pressure, congestive heart failure, blocked arteries, and erectile dysfunction. L-Arginine is safe for most people, however it should not be taken by women that are pregnant or breastfeeding.