The first few times i took it, it made me sick. i mean litterally, i would have to throw up at the gym every 15 minutes or so; and it was all just liquid and phlem. i didnt notice any difference in appearance, appetite suppression, or anything. except mood, i was alot more irritable and on edge when i was taking DREN. Its cheap and dosage is low, so it looks appealing; but i would recommend an ECA stack. Ephedrine through BRONKAID pills at your local pharmacy, a can of Red Bull, and a tab of aspirin - 2-3x a day for 4 weeks.