I have been using Semtex for 2 months now and its amazing! At first I started off with taking one capsule and it made me feel almost sea sick but a couple of days after it was brilliant! You get an amazing buzz, wanting to get up and do weights or cardio. It also makes you feel better about yourself in general. Ive been taking them along with Tonex and so far I've lost 14" off my body and 11lb in just 8 weeks! I've since ordered another 4 bottles and also got my husband using them before his weight training. He says he feels like he can lift more so in all a brilliant buy! Two satisfied customers.