Product Description

Build size, strength, and muscle with Optimum Nutrition Serious Mass Weight Gainer. Designed for hard gainers and athletes with high calorie requirements, this premium mass gainer delivers a powerful blend of high-quality protein and carbohydrates to support muscle growth, post-workout recovery, and healthy weight gain.

Each serving provides 1,253 calories, 50g of protein, and 253g of carbohydrates to help fuel intense training and replenish energy stores. Whether you’re looking to gain lean mass or increase your daily calorie intake, Serious Mass is an ideal addition to your nutrition plan.

Key Features

• High-calorie weight gainer formula
• 50g of protein per serving
• 253g of carbohydrates per serving
• 1,253 calories per serving
• Supports muscle growth and recovery
• Helps increase daily calorie intake
• Ideal for hard gainers and athletes
• Mixes easily for convenient nutrition
• 6 lbs tub

Always read the label and follow the directions for use. If symptoms persist, consult your healthcare professional.

Standard Shipping: 3-7 business days

Express Shipping: 1-2 business days

Free shipping on orders over $150 AUD within Australia.