Optimum Nutrition Serious Mass – 12lbs
High-Calorie Mass Gainer for Extreme Muscle Growth
Optimum Nutrition Serious Mass 12lbs is one of the most trusted and powerful mass gainers on the market, formulated for individuals who struggle to gain weight or muscle. With each serving delivering 1,250+ calories, 50g of blended protein, and over 250g of carbohydrates, it’s the ultimate bulking solution.
Whether you’re an athlete in a gaining phase or a hardgainer looking for real results, Serious Mass helps fuel your journey to serious size.
Key Features:
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1,250 Calories per Serving (with water)
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50g Protein Blend – Whey, casein & egg proteins for sustained absorption
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252g Carbohydrates – Complex carbs to fuel workouts & replenish glycogen
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3g Creatine Monohydrate – Boosts strength & muscle power
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25+ Essential Vitamins & Minerals – Complete support for active lifestyles
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Rich in Glutamine & BCAAs – Faster recovery & muscle repair
Why Choose ON Serious Mass 12lbs?
Perfect for athletes, bodybuilders, or anyone with a fast metabolism, ON Serious Mass supports rapid size gains and strength with a clean, calorie-dense formula. It’s your all-in-one mass-gaining shake.
How to Use:
Mix 2 heaping scoops (approx. 334g) with 700-900ml of water or milk. Use post-workout and/or between meals to boost your calorie intake.
Packaging Size:
12 lbs (Approx. 16 servings)
