Iso Gain XL™ is the most complete, highest-quality lean mass gaining formula on the market today. Adding muscle and size is not easy. It requires the right nutrients, at the right times, in the precise ratios the body can utilize. Iso Gain XL™ is formulated with 30 grams of the highest bio-available Whey Protein. We’ve also added 105g of our patent-pending slow to
fast release carbohydrate blend to keep glycogen levels up, preventing muscle wasting and improving muscle anabolism all day long! With only 10 of naturally occurring sugar per serving. Iso Gain XL™ is without a doubt the most scientifically advanced lean mass gaining formula on the planet.