I took Jalyn a couple of years ago -- my PSA's decreased and size of my prostate decreased, BUT, my libido decreased significantly and I couldn't ejaculate at all and my testosterone levels decreased. If I wanted to live the life of a monk, it may have worked, so I took myself off of Jalyn. My libido slowly came back somewhat, but testosterone levels remained quite low and the most worrisome issue was that my ability to ejaculate never returned to my pre-Jalyn days -- has anyone experienced that???