"Unlike steroids, which are small, cholesterol-based hormones, protein-based hormones or growth factors can easily be destroyed," he wrote in an email. Cohen guesses that even if you consume high levels of IGF-1, most if not all of the substance would be destroyed after hitting the acid in our stomach and before entering the blood system, which is how compounds we ingest reach the muscles. "This is also why you have to inject insulin instead of just eating insulin pills," he added.
Deer Antler Velvet Extract: This moss-like substance has been used in Chinese medicine for years and is thought to contain a number of compounds that can help with tissue regeneration and repair. The antlers are removed safely and without harm to the animal, and the velvet is thought to have applications for improving circulation, strengthening bone density, and improving male libido. There is very little clinical data regarding the effects of deer velvet, and not much is known about its side effects. Some conditions that may potentially be related to deer antler velvet include:
Deer antler spray is a supplement. It’s made from the immature tissues surrounding bone and cartilage found inside the tips of live deer antlers. The antlers naturally contain IGF-1. This helps them to grow rapidly. The tissue is taken from the deer antlers before they fully grow and harden. Then it’s flash-frozen to make supplements. (3) Farmed North American elk or wapiti (Cervus canadensis) and the European red deer (Cervus elaphus) are the main sources of antler for commercial use. The animals are not harmed in the process of extracting the substance from their antlers. Deer antler products are found in pill, powder or spray forms.
Although previously found on the World Anti-Doping Agency's list of banned substances, Deer Antler Spray was removed in 2013 when it was deemed completely safe and legal to consume prior to athletic activity. Deer Antler Spray has been known to speed up the rehabilitation process of injuries, especially injuries effecting cartilage. It has also been known to boost endurance and strength, increase muscle mass, decrease fat, and raise one's testosterone levels, thus increasing libido. The use of Deer Antler Velvet Spray has been linked to several athletes, including football star Ray Lewis, who is rumored to have used it following an injury to his tricep in 2013.
Deer antlers are the only mammalian bone structures to regenerate completely every year.1 Deer antler velvet is the epidermis covering the inner structure of the growing bone and cartilage, which develops into antlers.2 This tissue grows each spring on male Cervus sp. (North American elk and red deer) and should be removed by a veterinarian or certified farmer. The ethics, including use of local anesthetics, and procedures of harvesting antler velvet have been reported.3, 4, 5, 6 Velvet yield depends on several factors, including season, parasites, or injury.7 After removal of the deer velvet, it is collected and then frozen or dried prior to its manufacture into various "medicinal" forms including powders, extracts, teas, capsules, and tablets. Each part of elk velvet contains varying compounds, but the deer antler velvet contains the largest concentrations of those found to be beneficial. (Antler also has been sold by the slice). Heating during processing may reduce or destroy the purported beneficial effects of velvet antler. Various preparation methods, including freeze-drying and non-heat-producing methods have been reported.8, 9, 10, 11, 12, 13
A systemic review on human interventions 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.