Well, I'm 43 years old, and have had noticeable lower and lower test levels for years. Started taking this and in about 4 days could feel a little more zing in my energy levels. Fast forward to about 3 weeks and I felt strong, was healing faster and had put on (miraculously) about 10 lbs, some muscle, a little fat. I've been super damned lean all my life, and even though I kinda like being super cut, was very glad to get back to 191. My aggression levels were kinda out of place, which I've realized and accounted for.
At 4 weeks I was done with the bottle (30 day supply) and I pulled a fast one: for the last 12 pills, I took 3 for 2 days near the end, then 2 for 2 days, then 1 for 2 days just to make it less traumatic. Now, at 2 weeks post use, I'm feeling lower energy, lower intensity, and I'm moody as shit. You can say it doesn't work all you want. My diet and regimen were the same before and after use. But after use, at 43 years old, I have to say it worked for me.