I remember a study about 6 months or so ago that showed that adding aspirin or other salicylates made no difference in the fat burning potential of the product. I would just stick with the caffeine, it is good to take a break from ephedrine, and maybe add some green tea extract.
German1 (in U.S.)
It just I think the aspirin,or in Xenadrine(the white willow bark), might help to deal with the "burning feeling of muscles "while doing cardio, or training Hi rep!
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