Advanced Muscle Science has once again implemented progressive technological advancements in the manufacturing of their new version of their product 4-AD. The new version, 4-AD UTT, incorporates a unique under-the-tongue (UTT) delivery system that gives your body the same benefits that the capsule version of 4-AD did. Only now, it will hit your system even quicker and be utilized more efficiently by your body’s circulatory system. 4-AD UTT is an anabolic solution of a pro-hormone, which in itself is not an actual hormone, but allows your body to convert it into a hormone, testosterone. This gives you the upper edge on achieving the expectations that you have from your workout routine.