Ultra Male Rx vs. Anabolic Matrix Rx - what is the major difference? I am mostly looking to increase libido. I'm asking because I've been using Ultra Male rx but I'm almost out of product, but I have an entire bottle of Anabolic Matrix rx. Will I be able to transition to the AMrx and receive the same benefits? Is one actually better for libido than the other? Any info would be greatly appreciated. Thanks and Happy New Year!