XENDURANCE® EXTREME ENDURANCE 180 count :: Don't hit the wall...blast right through it by supplementing with Xendurance® Extreme Endurance, a revolutionary athletic performance formula. You'll stop the painful burn of tired muscles by reducing your lactic acid 15% and significantly increasing your aerobic threshold. Feel secure knowing that you'll be using a clinically proven product that's certified drug free and suitable for use by elite athletes.
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