Redcon1 - mass gainer: high protein & carb blend - chocolate when muscle matters most redcon1 mass gainer is a high calorie, high protein weight gainer formula designed to help your put on weight and size, while building muscle and fueling recovery. Whey protein concentrate & isolate optimal weight gain formula boost calories & protein intake milkshake taste & texture 50g protein 1230 calories 256g carbs. Redcon1 mass gainer - chocolate (8 servings)