Trenbolone greatly increases the level of the extremely anabolic hormone IGF-1 within muscle tissue. And, it’s worth noting that not only does it increase the levels of IGF-1 in muscle over two fold, it also causes muscle satellite cells (cells that repair damaged muscle) to be more sensitive to IGF-1 and other growth factors. The amount of DNA per muscle cell may also be significantly increased. Trenbolone also has a very strong binding affinity to the androgen receptor (), binding much more strongly than testosterone. This is important, because the stronger a steroid binds to the androgen receptor the better that steroid works at activating dependent mechanisms of muscle growth. There is also strong supporting evidence that compounds which bind very tightly to the androgen receptor also aid in fat loss. British Dragon EU Tri-Trenabol 150 has a release time of between 1-10 days.