I've been training for a few years and with some weights I've always needed a spot or just got stuck at a certain weight. After I started to take the tablets I didn't notice anything at first, but the results were in the weights I was pushing. My strength increased enormously. (Almost 50lbs) Trust me I was amazed myself. This product is very good. I should have stacked it with something else, but I have no regrets. Good Stuff!