EXPIRATION: 05/2027

Optimum Nutrition Serious Mass is a high-calorie, high-protein weight gainer formulated to support muscle growth, recovery, and size development. This 6-pound tub delivers 1,250 calories, 50g of blended protein, and over 250g of carbohydrates per 2-scoop serving—ideal for athletes, hard gainers, and anyone with elevated energy needs.

The Banana flavor offers a smooth, easy-to-mix taste that blends well with water, milk, or smoothies. Enhanced with Creatine Monohydrate, Glutamine, and 25+ vitamins and minerals, Serious Mass helps replenish nutrients post-workout and supports immune health.

Key Features:

Flavor: Banana
Size: 6 Lb (2.72 kg)
Protein: 50g per serving (Whey, Casein, Egg Protein blend)
Calories: 1,250 per 2-scoop serving
Carbohydrates: 250g+ per serving
Additives: Creatine Monohydrate, Glutamine, MCTs
Vitamins & Minerals: Includes Vitamin C, D, E, Zinc, Calcium, and more
Use: Post-workout or between meals for mass gain
Mixability: Instantized for smooth blending
Dietary Info: Non-vegetarian, no cholesterol
Shelf Life: 24 months

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Optimum Nutrition Serious Mass Protein Powder, Banana, 50g Protein, 6 Lb

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