When I by chance saw the ad for Advanced Amino the information coincided perfectly with my recent Holistic Health Coach training - that was the first thing that impressed me. It wasn't B.S. So, I did something new, I bought 3 months worth and said let's see. I have to say a couple of weeks into taking them I lost all that nagging pain in my back, hips and hands. The stiffness was gone - I would say, not miraculous, but pretty damned close. I'm impressed and have already recommended the supplement to others. They are reasonably priced as well - another plus point. I'll be getting a 6 months supply next and getting some for my wife.