5 days in to my clen cycle 40,40,60,80,80mcg. It works great i get the shakes for the first bit of the day and then it goes away.I take it all in the morning but i might divid it up thru out the day. I lost 5 pounds so far with a clean diet and 30min cycling a day. I'm going to take it for 6 weeks add some keto in at the third week. See how much weight i can get off. So far no cramps or any headaches. I'm taken taurine ED but only about 1.5 grams.