Optimum Nutrition
Serious Mass, High Protein Mass & Weight Gain Powder,Chocolate - 5.44 Kg
inclusive of all taxes
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WHY IT’S SPECIAL
Serious mass is the ultimate weight gain and muscle building formula. With plus 1200 calories per 2 scoop serving and 50 grams of protein to support muscle recovery, this powder makes the ideal post workout and between meals shake for sizing up your goals. Serious mass provides you with the tools you need to support your weight gain goals.