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Caffeine contributes to an increase in endurance capacity
We’ve further fortified the formula by adding an extra 5 grams of glutamine per serving for recovery
convenient and easy to prepare
Serious weight gain requires serious calories
A powerful BCAA-based intra-workout formula designed to enhance endurance
OPTIMUM NUTRITION - SERIOUS MASS 2KG PRE WORKOUTS Caffeine contributes to an increaseSerious weight gain requires serious calories. Optimum Nutrition Serious Mass is the ultimate weight gain formula. For muscle building and weight gain More than 1260 kcal per serving to help boost your calorie intake 50g protein per serving 25 vitamins & supplements Those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, Serious Mass is the ultimate in weight gain formulas. With
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