99% Testosterone Isocaproate/Test I Safe Steroids For Muscle Building CasNO.15262-86-9

The effects of testosterone in humans and other vertebrates occur by way of two main mechanisms: by activation of the androgen receptor (directly or as DHT), and by conversion to estradiol and activation of certain estrogen receptors. Free testosterone (T) is transported into the cytoplasm of target tissue cells, where it can bind to the androgen receptor, or can be reduced to 5?-dihydrotestosterone (DHT) by the cytoplasmic enzyme 5-reductase. DHT binds to the same androgen receptor even more strongly than T, so that its androgenic potency is about 2.5 times that of T. The T-receptor or DHT-receptor complex undergoes a structural change that allows it to move into the cell nucleus and bind directly to specific nucleotide sequences of the chromosomal DNA. The areas of binding are called hormone response elements (HREs), and influence transcriptional activity of certain genes, producing the androgen effects.
Testosterone Isocaproate got its introduction to the steroid world by appearing in both Omnadren as well as Sustanon 250, the two most popular testosterone blends currently on the market. From a purely academic point of view, I’m really at a loss to explain why the isocaproate ester would be any different than the caproate ester. It seems to have an extra day added to its active life, even though it’s got the same number of carbons, hydrogens, and oxygens, as well as the same molecular weight.