A couple of things:
1) Trenbolone was never made for human consumption. It is/was manufactured as a hormone to accelerate lean muscle growth in cattle - the only "official" version of Tren is Finaplex pellets, that people used to homebrew into an injectable solution. Now, 95% of tren is made using the raw powder from China
2) Trenbolone is definitely not a beginner steroid - while it is extraordinarily effective, it also has the harshest side effect profile and is extremely androgenic. It can result in hair loss, acne, increased aggression, high blood pressure and elevated cholesterol (it nukes good cholesterol). If you are attempting to use it for the purposes of TRT, it is the last drug you would ever want to use, particularly solo. It can have an adverse impact on your mood as well, with some people even reporting extreme depression.
3) Trenbolone is extremely easy to get - while I'm not going to provide you with a direct source, visit the forum Professional Muscle and look for a domestic lab that has good reviews. Generally speaking, Tren will run between $50 and $75 for a 10ml vial (100mg Tren Acetate). Tren Enanthate is a bit more expensive, but it is normally dosed higher, and you don't have to pin every day.
4) Trenbolone significantly impairs your cardio, and can also increase the likelihood of injury as your tendons will not increase in strength at the same rate your muscles will. It is not uncommon for you to add 50+ lbs to your major lifts within a couple of weeks - this is fantastic... until you tear something because your joints/tendons are not prepared for the increase in load.
For what it's worth, I have cycled Tren off and on for the better part of a decade (it is actually my avatar). The gains are out of this world, but be prepared to run a whole bunch of anicllary supplements to deal with the side effects.
If your going to do steroids, start with Test to see how your body responds, and over time, start adding in an oral like Dbol or anavar. Only consider tren after you have several cycles under your belt, and have had time to assess how far you want to take bodybuilding.
