Scientifically speaking, why does natural testosterone production shutdown when injecting exogenous test? Same with tren, etc.
Natural bodybuilding is a joke, but I still place my longterm health above it. There are secrets movie stars won't tell us, but they also can afford the best doctors. I have asked /fraud/, and there is no 100% foolproof way to get gains with not shutdown or changes. Best is 200 test for cruise, or 500 test for 8-16 weeks with clomid pct.