💥 Bulk up smarter, not harder with Serious Mass!
Optimum Nutrition Serious Mass is a high-calorie, high-protein weight gainer powder designed for vegetarians with fast metabolisms or high energy demands. Each 3 kg tub delivers 1200+ calories, 50g protein, and 250g carbs per serving, enriched with 23+ vitamins, minerals, creatine, and glutamine. Manufactured in India with imported European ingredients and certified for quality and purity, it’s ideal for post-workout or between meals to accelerate muscle mass and weight gain.
| Additives | L-Glutamine |
| Brand | Optimum Nutrition |
| Format | Powder |
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