Every in this thread.
You use phentermine because it kills your appetite. Don't know if any of you have got extremely lean before, but when you are on starvation calories, trying to get to 5% body fat, it can help a lot. Is it good for you? No. But buying illegal drugs online from a guy you don't know and injecting it into your body isn't either. When used correctly, it can be a very useful tool.