CRITICAL MASS is the most comprehensive Lean Mass Gainer on the market, now containing 60g of protein from Whey Protein Isolates and Milk Protein Isolates!*  Our ultra low lactose, low glycemic formula makes CRITICAL MASS easy to digest, delivering massive gains with zero bloating or gas!

Add Quality Muscle, Not a Sloppy Gut.†

Adding quality muscle requires a lot of calories, but they must be from quality nutrients. A 10 lb bag of weight gainer providing mostly cheap carbs that won’t do anything for your physique but trigger a huge insulin response and make you fat and tired.  Add quality muscle to your physique with quality nutrients from AFTERSHOCK CRITICAL MASS!™†