- Serious Mass (6lbs): 1,250 calories, 50g protein, 252-254g of carbohydrates per serving
- Micronized Creatine Powder (300g): 5g pure creatine monohydrate per serving
- Stackable products to easily optimize daily nutrition
Product Overview
Mass Stack | Optimum Nutrition US
Stack it to add more protein, calories, and carbohydrates into your daily routine. Our Mass Stack Bundle includes 6lbs of Serious Mass for muscle building & weight gain goals and 300g tub of Micronized Creatine Powder to support muscle building, strength, & performance.
Benefits
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Serious Mass for muscle building & weight gain goals
- Micronized Creatine Powder to support muscle building, strength, & performance
- Optimized combo to support caloric, protein, and carbohydrate goals
