There are still newer variations of banned substances though, many of the "legal" supplements now are just variations of older banned prohormones. In fact there are also several methyls that are straight up oral steroids, which are illegal, but they sell them online just fine. When you see a product on a site that says it does not have to convert to anything (Ultradrol, Mechabol) this is not a prohormone. A prohormone must convert into a hormone after consumption, those compounds are active and need no conversion.