- Rapid increase of muscle mass- Diverse forms of carbohydrates- 100% whey protein + vitamin complexMASS XXL is a gainer whose basic contents include whey protein concentrate and appropriately selected mono-, oligo- and polysaccharides. MASS XXL ensures even supplies of energy, as well as carbohydrates and amino acids necessary in muscle regeneration. The product is enhanced with a set of vitamins which supports protein and carbohydrate metabolism in your body. MASS XXL is recommended for athletes who strive to gain body mass quickly.

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