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The Mutant brand is all about gaining rock hard muscle mass — and lots of it! Bodybuilders know that building muscle requires the right combination of protein and nutrients, and that's exactly what Mutant products deliver. When it comes to weight gainers, Mutant Mass is in a class of its own. The revolutionary Mutant Mass formula was developed after two years of clinical research and is now the #1 choice among elite bodybuilders in over 70 countries worldwide!
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5 Whey blend triggering greater muscle protein synthesis