PROVEN TO INCREASE MUSCLE STRENGTH IN JUST 8 WEEKS: GNC AMP Wheybolic protein powder is clinically proven to increase muscle strength by 30% after only 8 weeks of resistance training. FAST-DIGESTING PROTEIN POWDER WITH VELOSITOL: Wheybolic features a blend of ultra-pure and fast-digesting whey protein with added leucine and Velositol to accelerate muscle protein synthesis.
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