Testosterone Propionate: I incorporated Primal Pharmaceuticals (supplied by ) testosterone propionate into my cycle as a kicker and Primal's test prop will also be used at the end of my cycle as a taper. So far i have been using this product for upto 32 days, pinning EOD and i can definitely feel the effects of the test prop. The results and gains are as expected, i have a strong increase in libido and strength has also drastically increased. Overall Primal Pharmaceuticals test prop is a great product, which does exactly what you expect and i will now look forward to using it again at the end of my cycle in a taper.
This is evidenced in history during the Olympics, where East Germany ran a state-sponsored program known as State Plan Research Theme , which as a program designed to circumvent the IOC testing procedures and have all of their Olympic athletes (both knowingly and unknowingly) utilizing anabolic steroids in an effort to undetectably gain an advantage over other competitors  . The East German government implemented this program and ran it for over 20 years, and involved the use of undetectable (at the time) anabolic steroids, due to their relatively new development and unknown status.
For one reason or another many people believe some anabolic androgenic steroids do not suppress testosterone and this simply isn't so. It is true, the level of suppression varies with each form; for example, Deca-Durabolin will suppress production completely after one dose, while milder steroids such as Anavar only suppress slightly but slightly is still suppression. In our case here, one of the often forgotten Dianabol side effects is in-fact testosterone suppression. It will not suppress to the degree of Nandrolone or Trenbolone but it is more than enough to warrant a need for exogenous testosterone therapy .