Applied Nutrition - Critical Mass (2.4KG) | 16 ServingsLEAN MASS GAINZ Critical Mass Professional is quite simply the UKs 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