About a week later my results were back and admittedly I was surprised. My overall testosterone numbers actually dropped significantly. My free testosterone ended at 16 which was about where it has been but the drop in total testosterone was not something I expected, nearly a hundred point decline over Max Muscle 2TX and Text X180 from GNC. My sense of increased libido and energy obviously had nothing to do with the supplement and may have been more environmental. As stated many times, product results may vary by individual but my blood worked proved P6 Extreme Red to not be effective for my overall goals.