Natural testosterone

As a general rule of thumb, if it is legal without a prescription, it won't actually work. The funny thing is that these legal test boosters not only don't really do anything, but they cost more than steroids would on the black market.
Anything good enough I provide you a PED like effect is banned/highly regulated.The two exceptions are creative and caffeine. The former has a varying efficacy across the population, and at most offers perhaps a 2% increase in performance and size.The latter is too intrinsically established in day-to-day culture to weed out (the same reason alcohol is not illegal on a global scale).