International Protein - Extreme Mass

Extreme Mass — High-Calorie Mass Gainer

Big calories. Serious size. Built for hard gainers.

International Protein Extreme Mass is a fully loaded mass gainer designed for people who struggle to eat enough, struggle to gain size, or simply need more calories to support growth, recovery, and performance.

Built around a multi-stage protein blend, complex carbohydrates, healthy fats, MCTs, digestive enzymes, and calorie-dense ingredients, Extreme Mass is designed to help support lean mass gain without relying on junk calories and sugar-loaded filler.

If eating enough food feels like a full-time job — this is where Extreme Mass comes in.

Why People Use It

• High-calorie shake for mass & size goals
• Multi-stage protein blend for sustained amino support
• Added carbs & healthy fats for extra calories
• Includes MCT oils for fast energy support
• Digestive enzyme support blend
• Great for hard gainers & high-calorie diets

What It Does

Extreme Mass combines multiple protein sources including Whey Concentrate, Whey Isolate, Casein, Milk Protein Isolate, Hydrolysed Whey Peptides, and Egg Albumen to create a sustained-release protein matrix designed to feed muscles over time.

The carbohydrate blend featuring rice starch and glucose polymers helps support training energy, recovery, and increased calorie intake, while MCT oils and healthy fats help boost overall calories without needing to force-feed endless meals.

Added digestive enzymes help improve digestion and nutrient breakdown, making the shake easier to consume regularly — especially for people who struggle with appetite.

Who It’s For

• Hard gainers struggling to gain size
• Muscle-building phases & bulks
• Athletes with high calorie demands
• Busy people needing easy calories
• Anyone wanting a meal-replacement style shake
• Lifters who struggle to eat enough food daily

The UNVRSL Take

A lot of mass gainers are just cheap carbs and sugar.

Extreme Mass actually gives you a proper mix of quality proteins, carbs, fats, and digestion support to help make gaining size easier — without feeling like you’re drinking melted ice cream every day.

If your problem is “I can’t eat enough,” this is one of the easiest ways to get calories in consistently.

Nutrition Information