The patented SportLegs difference is that we use premium lactate (not lactose) compounds of these healthy vitamins and minerals. When you take SportLegs an hour before sports, they raise your blood lactate level, just like what ordinarily happens during sports. Elevated blood lactate is the signal which tells tells muscles not to make so much lactic acid. The result: Your muscles don't make more lactic acid than they need for you to perform at your very best. With less painful muscle "burn" during sports, and less soreness afterward. Depending on how competitive you are, you'll either think of SportLegs as a pain preventative, or a performance enhancer. Or maybe a little of both. Either way, you're going to love it.