Caution, this is extremely high potent fat burner. Beginners and even intermediates dont even think. Take this if your habitual to atleast 200 mg of caffeine per day for a period of time. Taking this you will get that kick in just 20 mins and first time users your day will be the most disastrous day of your life. rashes, jitters and fastened heartbeat are must, to avoid that take plenty of water may be every 30 mins have a glassfull of water and pee as many times as you can.SPECIAL TRICK - who has bought this and havnt taken yet or are beginners or has no idea about ephedrine,caffeine, yohimbine snap the capsule into half take half the powder from that capsule mix it with your fav drink as preworkout and consume to avoid that horrible feeling and then gradually come to 1 capsule after using it for few days.