Insulin growth factor-1 (igf-1) is produced in the liver from human growth hormone (hgh). It has become part of the drug regime of high level bodybuilders. Generally, it is injected directly into the muscle you are trying to induce growth in, ex., the biceps before an arm workout. Igf-1 induces growth by stimulating angiogenesis,i.e., the formation of new blood vessels.
Could this be a useful adjunct to other PE methods for generating new growth? Using a small gauge needle (28 or 30) could the shaft of the penis be injected in the hope of stimulating angiogenesis in the corpous cavernosum? Penile injections are done now as therapy for ED with prostaglandin E-1 (PGE-1) so the basic technique seems safe. Any thoughts or feedback?