Serious Mass

Optimum Nutrition Serious Mass – 5.4KG is the ultimate weight gain formula for those who struggle to add size and strength. Each serving delivers a massive calorie boost with high-quality protein, complex carbohydrates, and essential vitamins and minerals to fuel intense training and recovery. Packed with creatine, glutamine, and other key nutrients, Serious Mass helps you achieve your bulking goals faster. Perfect for athletes, bodybuilders, and hard gainers who need extra calories and nutrients for maximum growth.

Key Features:

• 1250+ Calories per serving

• 50g Protein blend for sustained muscle growth

• 250g+ Carbohydrates to replenish energy stores

• Enhanced with creatine, glutamine & micronutrients

• Ideal for bulking and mass building