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The Ultimate High-Calorie Formula for Serious Muscle Gains
If you’re struggling to pack on size and hit your daily caloric goals, Optimum Nutrition Serious Mass is the tool you need to break through your plateaus. Specifically formulated for "hardgainers" and athletes with highly active metabolisms, this nutrient-dense weight gainer provides the heavy-duty caloric support necessary to build muscle mass and increase strength.
Nutrient-Packed for Maximum Bulking Support
Each serving of Serious Mass is a powerhouse of nutrition, delivering an incredible 1,250 calories and 50g of a premium protein blend (when mixed with water). With over 250g of carbohydrates and no added sugar, this formula provides the sustained energy needed to fuel intense training sessions and replenish glycogen stores, ensuring your body stays in a prime muscle-building state.
Comprehensive Support for Immunity and Performance
Serious Mass goes beyond just calories. It is fortified with 25 essential vitamins and minerals, including Vitamin C, Vitamin D, and Zinc, to provide vital immune support and promote overall wellness during demanding bulking cycles. To further enhance your results, this blend includes Creatine Monohydrate and Glutamine, helping to improve explosive power, strength, and post-workout recovery.
100% Authentic
Fast Shipping
14-Day Returns
The Ultimate High-Calorie Formula for Serious Muscle Gains
If you’re struggling to pack on size and hit your daily caloric goals, Optimum Nutrition Serious Mass is the tool you need to break through your plateaus. Specifically formulated for "hardgainers" and athletes with highly active metabolisms, this nutrient-dense weight gainer provides the heavy-duty caloric support necessary to build muscle mass and increase strength.
Nutrient-Packed for Maximum Bulking Support
Each serving of Serious Mass is a powerhouse of nutrition, delivering an incredible 1,250 calories and 50g of a premium protein blend (when mixed with water). With over 250g of carbohydrates and no added sugar, this formula provides the sustained energy needed to fuel intense training sessions and replenish glycogen stores, ensuring your body stays in a prime muscle-building state.
Comprehensive Support for Immunity and Performance
Serious Mass goes beyond just calories. It is fortified with 25 essential vitamins and minerals, including Vitamin C, Vitamin D, and Zinc, to provide vital immune support and promote overall wellness during demanding bulking cycles. To further enhance your results, this blend includes Creatine Monohydrate and Glutamine, helping to improve explosive power, strength, and post-workout recovery.