Human Growth Hormone is an injectable hormone that can be administered subcutaneously or intramuscularly. When injected subcutaneously, HGH carries a bioavailability of approximately seventy-five percent. When injected intramuscularly, HGH carries a bioavailability of approximately sixty-three percent. The mode of administration will also affect the half-life of the Somatropin hormone. When injected subcutaneously, it will carry a half-life of approximately hours. When injected intramuscularly, it will carry a half-life of approximately hours. While this is a rather short half-life regardless of the mode of administration, keep in mind the total effects far outlast these numbers due to the pronounced and significant increases in IGF-1 production that stretch far past the twenty-four hour mark.
After an injury to the skin, the body sends cells to the wound that can build new skin and tissue. After it stops bleeding, a scab develops. During the first few weeks, natural collagen fills in the gap around and under the scab, forming new skin – a scar. Normal scar tissue slowly grows thicker and then smoother. Collagen production stops after a few weeks. Capillaries form to deliver blood to the injured area, helping it to heal more quickly. The scar isn’t quite as strong as the original skin. It becomes flat and takes on a skin color closer to that of the surrounding area. Abnormal scar tissue, such as hypertrophic or keloid, may never completely heal or fade without additional scar treatment.
About the National Institute on Drug Abuse (NIDA): The National Institute on Drug Abuse (NIDA) is a component of the National Institutes of Health, . Department of Health and Human Services. NIDA supports most of the world’s research on the health aspects of drug use and addiction. The Institute carries out a large variety of programs to inform policy, improve practice, and advance addiction science. Fact sheets on the health effects of drugs and information on NIDA research and other activities can be found at , which is now compatible with your smartphone, iPad or tablet. To order publications in English or Spanish, call NIDA’s DrugPubs research dissemination center at 1-877-NIDA-NIH or 240-645-0228 (TDD) or email requests to drugpubs@ . Online ordering is available at . NIDA’s media guide can be found at /publications/media-guide/dear-journalist , and its easy-to-read website can be found at . You can follow NIDA on Twitter and Facebook .