Trenbolone is a very well-known injectable anabolic steroid, and milligram for milligram it is the most powerful anabolic steroid commercially and conventionally available. It is an anabolic steroid that tends to invoke both intimidation as well as amazement among those who read about it. The truth is that although Trenbolone is not as harsh of an anabolic steroid as many make it out to be, it is by no means a beginner compound and does need to be taken seriously when the use of it is considered. It is typically used by intermediate to advanced level anabolic steroid users, and seldom used by beginners until several cycles of experience has been built up.Trenbolone is a derivative of Nandrolone (Deca-Durabolin), and alongside Nandrolone, is in the family of anabolic steroids known as 19-nor compounds. This category of 19-nor steroids is named as such due to the fact that these compounds contain a specific alteration at the 19thcarbon on the anabolic steroid’s molecular structure. This alteration, which is the removal of the 19th carbon, is not seen in any other anabolic steroid classes. It also contains other alterations in this area that grant it enhanced androgenic strength (its ability to bind at a much greater strength to the androgen receptor), as well as a high degree of resistance to metabolic breakdown within the body.Trenbolone, as a result, expresses five times the androgenic and anabolic strength of Testosterone, with a rating of 500 for each. It also expresses characteristics that grant it the ability to promote weight gain with nearly all of it being muscle mass, and no water retention. Trenbolone has also been found to stimulate endogenous production of the very anabolic hormone IGF-1 (Insulin-like Growth Factor 1) in muscle tissue, adding to its anabolic capabilities. Ultimately, the reason for Trenbolone’s inability to make the user hold onto water and become bloated is due to the fact that its chemical modifications render it unable to aromatize into Estrogen at any dose what so ever.