Research studies show that increasing growth factors through HGH supplementation can:
- burn fat
- prolong stamina
- increase muscle mass
- boost energy levels
- reduce inflammation
- promote healing
- enhance immune function
Growth factors, including HGH, are messengers used by the immune, nervous and hormonal systems to coordinate activities. 
Growth factors guide a cell’s DNA on how to respond to external signals with appropriate cell actions.
Growth factors are critical for nutrient uptake, cellular survival, development, specialization, and repair, allowing a cell to be rejuvenated in the event of infection, illness, trauma or stress.
Increase growth factors and you retard aging and help heal the body from a multitude of unwanted symptoms. 
Why increase the growth factors IGF-1 and IGF-2 through HGH supplementation?
Researchers have shown the growth factor IGF-1 and IGF-2 are ten times more potent than HGH (Human Growth Hormone) in their ability to heal. The health benefits are extraordinary. 
This is just how effective Growth Factors are? Scientists have discovered that they are so powerful, they can can help regrow damaged nerve tissue as well as anything previously discovered!
Doctors until a few years ago did not even think it was possible to re-grow severed or damaged nerves! Now studies show it is! And growth factors are at the head of the class of this medical phenomena! 
IGF-1 and IGF-2 are the natural outcome of HGH supplementation.
When HGH levels are low the growth factors IGF-1 and IGF-2 also suffer because they are metabolically linked to HGH levels.
The number one reason to take an HGH supplement is to help increase and stabilize IGF-1 and IGF-2 growth factors.
 US National Library of Medicine. Insulin-like growth factor 1 (IGF-1): a growth hormone. Available from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1187088/
 US National Library of Medicine. Growth hormone and insulin-like growth factors have different effects on sebaceous cell growth and differentiation. Available from: http://www.ncbi.nlm.nih.gov/pubmed/10465280
 Endocrinology Journals. http://joe.endocrinology-journals.org/content/184/1/199.full.pdf. Available from: http://joe.endocrinology-journals.org/content/184/1/199.full.pdf
 Harvard Medical School. Growth hormone, athletic performance, and aging. Available from: http://www.health.harvard.edu/newsletters/Harvard_Mens_Health_Watch/2010/May/growth-hormone-athletic-performance-and-aging
 Science Direct. Specific binding of human growth hormone but not insulin-like growth factors by human adipocytes. Available from: http://www.sciencedirect.com/science/article/pii/0014579386808560
 Boston University. GROWTH FACTORS : THEIR DEVELOPMENT AND TESTING. Available from: http://www.bu.edu/woundbiotech/growthfactors/gfdevtest.html