Caffeine and L-Theanine taken together as a mini-stack is an extremely popular inclusion in today’s fat burners and diet pills. The first ingredient, caffeine, is in almost every weight loss product available, in some form or another. In fact, unless the supplement has been specifically designed to be stimulant-free, then it will almost certainly contain caffeine. Some popular sources of caffeine are: caffeine anhydrous, di-caffeine malate, guarana, cacao, theobromine. You will also see … [Read more...]