Blackstone Labs Letro XT 60TabsWhile very effective in delivering massive gains in lean muscle and strength, aggressive supplement cycles can disrupt the body's natural equilibrium and may come with an imbalance in hormone levels once the cycle has finished. This is why it's always recommended to run a proper PCT following your supplement cycle. Letro XT helps restore your testosterone production to natural levels; controls estrogen, which Letro XT prioritizes; and then boosts your