I see a huge difference when I take this or when I don't. I do at home workouts and using my joints a lot. This helped me alot. I also started it when I had my daughter, I had awful joint pains. That went away with time and I started insanity. I really needed them when doing those work outs. Its a great product, you can honestly try any brand of glucosamine. I usually buy generic. Its the same product.