This product works when it comes to keep you from having the hunger feeling. Whenever I eat around noon (and I only eat a banana and yogurt because I don't have time to have real lunch), I usually get really hungry by 3pm when I get off work and can't wait to get home to eat. When I tried the hoodia, I don't feel hungry when I get off work. I end up eating around 6 or 7pm...not because I'm hungry but because I know I should eat. And I don't end up eating too much or binging either. I notice that you do need to take the hoodia pill 1 hour prior to your meal time...otherwise it won't really work. You don't have to buy the Desert Burn brand or anything unless you need something REALLY strong. I bought this and Desert Burn...I returned the Desert Burn because the Hoodia from Source Naturals worked well enough and it's much cheaper.