First up, HUGE difference between "safe" and "legal". Huge. In this context I assume that "safe" is incorrectly being used in place of "legal". Second is just a generic point to think about on where to draw the line and what constitutes a performance enhancer: A performance enhancer is essentially something that you can take/do that is gives you something that is not naturally available to your body. So how are concentrated food drinks/protein shakes/recovery drinks not considered "performance enhancers". Many people use them because they see a true benefit (ie enhances performance), and while it is possible to get everything in a recovery drink through real food, it's not really possible/feasible to eat that much straight after a high intensity workout let alone process it as quickly. Or to have it pre-digested as is the case with some of these supplements. So I see this whole lot as pretty grey from the onset (don't even get started on TUEs). The black-and-white of it is that: A compound cannot be banned unless it a) exists, b) it can be positively tested for. Therefore it is reasonable to assume there will always be performance enhancers which are "legal" as they are still being studied. This doesn't mean that they are "safe". So in terms of Tridenosen, if you really feel that you need to use the stuff.... use it while you can because you can expect to see it on the banned substances list in the near future.
