Critical Mass Professional® – The UK’s #1 Lean Mass Gainer

Looking to build serious size and strength? Critical Mass Professional® is the UK’s most trusted mass gainer supplement, crafted for those who demand high-quality lean muscle gains without unnecessary sugars or fillers.

Formulated with premium-grade ingredients and our new reduced sugar blend, each serving delivers a powerful 42g of both fast- and slow-digesting proteins, including ISO-XP® 95% Whey Protein Isolate — one of the purest and most effective proteins on the market.

 Why Choose Critical Mass Professional®?

• New Reduced Sugar Formula – Clean calories for lean muscle growth
• 42g of High-Quality Protein per Serving – Includes fast and slow-release proteins
• Enhanced Muscle Support – With added HMB, Glutamine, Leucine, and a Creatine Matrix
• Creatine Monohydrate – Boosts short-term, high-intensity performance
• Essential Healthy Fats – Includes CLA and MCT Powder for energy and metabolism
• High-Calorie Shake – Ideal for athletes and hard gainers
• Chromium – Supports normal macronutrient metabolism
• Stack Friendly – Pairs perfectly with iDRIVE® Insulin Driver
• Halal Certified – Quality you can trust, suitable for Halal diets

Whether you’re bulking up, increasing strength, or breaking through a plateau, Critical Mass Professional® gives you the nutritional edge you need to fuel your training and transform your physique — faster and smarter.

Join thousands of UK athletes and fitness enthusiasts who trust Critical Mass Professional® for clean, powerful, and consistent results.

Nutritional Information

Serving Size: 2.5 Scoops (150g)

*RI = Reference Intake of an average adult (8400 kJ / 2000 kcal)

Ingredients (Vanilla Flavour)

Organic Ground Oats, Maltodextrin, Protein Blend (Milk Protein Isolate (Milk), Whey Protein Isolate (Milk), Whey Protein Concentrate (Milk)), L-Leucine, Glutamine Peptides (Wheat), Creatine Monohydrate, CLA Powder (Conjugated Linoleic Acid), MCT (Medium Chain Triglycerides), HMB (Beta-Hydroxy Beta-Methylbutyrate), Flavouring, Emulsifier (Soy Lecithin), HICA (Alpha-Hydroxy Isocaproic Acid), ALA (Alpha Lipoic Acid), DigeZyme® Multi-Enzyme Complex (Amylase, Protease, Cellulase, Lactase, Lipase), Sweetener (Sucralose), LactoSpore® (Bacillus Coagulans), Chromium (as Chromium Picolinate)

Allergen Warning

Contains: Milk, Soy, Wheat (Glutamine Peptides)
May contain: Egg, Fish, Cereals containing gluten, Nuts

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