It looks like spam. It's not the real magazine's website. All the links lead to this product. And if you google it you get no other results. Surely, if all these celebrities had used it, there would be other results... So, yeah, I'd suggest that you not buy it.
I started on 05/30/10 at 253. After almost 4 years and many, many breaks, I reached 152 on 03/19/14. Now I'm trying to reach 130.