Most pre-workout sports supplements provide arginine as one of their main ingredients. But research shows that arginine of itself is NOT an effective way to increase nitric oxide and the corresponding vasodilation that gives the user a great 'pump!'The main ingredient in PUMP GC, GlycoCarn (GPLC), is a patented nitric oxide synthesizing agent that is far more effective in elevating blood nitric oxide levels during exercise than arginine.
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