I'd like to see a valid explanation as to WHY DHEA/topicals require a PCT, but I have not. Reason? there is none. DHEA and Pregnenolone are essentially building blocks for your body to utilize to make other hormones you may be deficient in (test or estrogen...), or it can replace a deficiency in DHEA of course. If you take enough to make THAT much test, so you end up suppressed? God bless you, because you found a natural OTC TRT alternative product.....the reality? After a certain point you will see increases in estrogen (not test), once test is at a certain level...then you would need an AI not a PCT (reason all those TD DHEA products have a boatload of AI ingredients in them). AI--yes, PCT--No. When you stop the DHEA I am fairly certain you will decrease to your natural level of test/homeostatis that you were at before using DHEA. It's going to supplement your natural test level by allowing your body to create more test, it does not provide an exogenous source of testosterone capable of causing shutdown, example being androgel or topical test products