I began a health "restart" program about 9 months ago. I joined a gym, lost some weight, and really tried to upgrade my lifestyle to enjoy my life after turning 68. I saw some progress and kept looking for more progress. I read about Advanced Amino Formula, as I had been taking a powder amino supplement much like it. The powder tasted terrible though. I take a bunch of pills each day, and taking 5 more tabs was no big deal for me. So I bought these. They worked. I wondered how much they were working, when I just had hernia repair surgery and the surgeon told my wife that I looked in terrific shape! (kinda made my day). Anyway, I'm about to reorder and that is the best compliment I can pay a product.