I have tried several testosterone integrators and by far Force X7 is the best.
I am almost 50 and hitting the gym regularly 3 times per week.
I started noticing a decrease in my testosterone levels both in terms of stamina and of sexual drive. Because of other prescriptions, I also had to assume drugs which limited my testosterone secretion, so I found myself overweight, with difficulties to put on muscle, low sex drive and depressed.
Force X7 has been a boost for me. It increased my testosterone level back to normal/high normal levels, which helped me to fight my depression, progress with muscle gain at the gym and get back my sex drive