While effective in helping you get the gains you want, prohormone and other supplement cycles can disrupt your body's natural equilibrium. This is why it's almost always a good idea to take a PCT following your prohormone supplement. And if you want a PCT that will help you balance your hormone levels while also helping you preserve your gains, then you'll want to try Blackstone Labs Letro XT! This new PCT from Blackstone Labs also provides the benefits of increased testosterone, meaning it works both as a PCT and a testosterone booster! A PCT helps restore your testosterone production to natural levels, as well as control estrogen, which Letro XT prioritizes, as well as then boosting your testosterone levels so that you keep up your gains and can build more muscle. So if you're looking for a PCT that offers both of these benefits, then try Blackstone Labs Letro XT after your prohormone cycle!