Leptitrex is a diet pill with a great many ingredients that is being marketed largely by word of mouth. It claims to help you lose fat fast, detox, suppress your appetite, and build lean muscle. Plus, you get your acne eliminated ...... I just got my order(3 bottles) this morning and have taken both doses of three capsules each. I have not had any burning sensation as yet. I am 74 years old and have always thin.I have been gaining weight stedily for the past six months. ...