The problems don't end there, unfortunately. The dosages of these ingredients is unknown. The list on the back of the bottle doesn’t give you any detail on how much of what ingredient is in each capsule. It is important to know how much to determine Nugenix effectiveness. Since Nugenix lists the main ingredients as a “proprietary blend” aka “The Nugenix Testosterone Complex” the manufacturer doesn’t have to give an exact dosage of each ingredient. All that is shown is that Nugenix’s total content of its three main ingredients is 2,103 mg. That's a problem for us as reviewers and us (or you) as consumers.