Critical Mass? Professional is quite simply the UK?s favourite and trusted Mass Gain Supplement. It uses the highest quality ingredients, all of which have been carefully selected for the ability to deliver quality LEAN MASS GAINZ allowing you to rack up the calories for your daily count. Our new reduced sugar formulation contains 42g of both fast and slowly digested proteins per serving including ISO-XP 95% Whey Protein Isolate. KEY BENEFITS New Reduced Sugar Formula Added HMB, Glutamine, Leucine & Creatine Matrix Creatine: Increases physical performance in short-term bursts of short-term, high-intensity exercise Added Fats: CLA & MCT Powder High-Calorie Protein & Carbohydrate Shake Chromium: Contributes to Macronutrient Metabolism Recommended to be used with iDRIVE? Insulin Driver Halal Certified Product