Applied Nutrition Critical Mass Original is a high energy mass gainer built to grow muscle and provide energy for fast gains, delivering protein and energy to support rapid gains. Powered by a 55g multi source dairy protein blend and a hefty 153.8g carbohydrate mix, it’s backed by Applied Nutrition's reputation for quality and rigorous manufacturing standards.

Available Sizes & Variants:

6000 grams mass gainer — Serious athletes looking to bulk up appreciate the massive size and cost efficiency.

Benefits & Features:

• 55g protein per serving for muscle growth.
• Offers around 900 kcal per serving to help you achieve a motivating energy surplus, supporting quick gains when paired with resistance training and steady progress toward bigger, stronger you.
• Carbohydrate blend fuels workouts and replenishes glycogen stores for faster recovery.
• Multi source protein pack delivers essential amino acids, supporting muscle growth and repair, whether used in protein shakes or as a meal supplement.
• Halal certified and manufactured in ISO 2200 and GMP facilities for safety and trust.

Applied Nutrition has built a strong reputation in sports nutrition, and Critical Mass Original embodies that heritage. The mass gainer is produced in ISO 22000, BRC and GMP certified facilities and carries Halal certification, giving you confidence in every scoop. The brand’s Tested for Athletes program means batch testing for quality and safety, so you can train hard with peace of mind. It’s a reliable staple in many athlete’s protein shakes.

Energy, Fat, Saturated Fat, Carbohydrates, of which sugars, Fibre, Protein, Salt

• GTIN: 5056555204450
• Manufacturer: Applied Nutrition
• Size: Banana
• Categories: Applied Nutrition ProductsBest SellersOur Biggest Black Friday Sale!Sports SupplementsSports Supplements Black Friday SaleSubscribe & Save ProductsWeight Gainers & Muscle Mass Gainers
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Mix 4 scoops (240g) with 500-1000ml of milk or water and shake well using a shaker bottle. Consume 1-3 servings daily depending on your calorie requirements. Store in a cool, dry place, out of reach of children. Not recommended for children or pregnant women. Do not exceed the recommended daily dose.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Whey Protein

Whey protein is basically a dairy sourced protein used to deliver a full amino acid map for everyday body function and tissue upkeep.

This kind of protein sits inside a multi-source blend in the formula, giving dairy-based protein along with essential amino acids and BCAAs to help muscle protein synthesis and repair [which is common in blends].

What Does Whey Protein Do?

Whey protein helps provide essential amino acids needed for normal muscle metabolism and growth and also supports protein synthesis and recovery after training.

As part of a high-calorie, high-protein blend, it aids the body’s prep for and recovery from training, together with carbohydrate sources that help top up energy stores.

This product isn’t meant to diagnose, treat, cure or prevent any disease.

Wellbeing Nutrition has a well established standing in the active nutrition scene for performance and safety checks, built through a worldwide footprint and trusted channels among dedicated athletes. This brand has a proven track record with programmes such as Tested for Athletes, underscoring its commitment to transparency and anti doping standards. The manufacturer operates in facilities certified to GMP, ISO 22000 and BRC Global Standards, with Halal certification, reflecting a robust, safety driven manufacturing philosophy. Our team of medical experts carefully evaluated Applied Nutrition against our standards for quality, purity and compliance, guided by our ingredient quality and purity standards and corroborated by industry benchmarks. This brand’s heritage of rigorous quality management and global trust made it a strong partner choice.

This product, Applied Nutrition Critical Mass Original, benefits from the brand’s strength in delivering high calorie, protein rich formulations designed for mass gain, while staying aligned with safety and certification expectations that matter to Welzo customers. Learn more about our team and standards during evaluation at our team of medical experts.