I tried MiracleBurn pills for 3 weeks. The first couple of days I had a headache from the pills, but it gradually that got better. I lost no weight while taking the pills, and had even started exercising. They did not curb my appetite in any way. I found WeightWatchers and exercise to be the only answer. The company itself, was great. They shipped them on time and provided the free sample for shipping. However, I did receive my first shipment before I could cancel the order and found out they didn't work. It was quite easy to cancel the automatic shipment as well.