Future I just finished some T-3 I worked my way up to 75 mcgs and back down. I have a very slow metabolism and I feel that it worked great for me. Be careful though it burns muscle as well as fat. As of today I just started Clen tabs. I wanted to seperate the 2 just in case my metabolism starts to slow down after the T-3, the Clen would off set it. Just be careful with the T-3 and don't get crazy with it. Good Luck