Applied Nutrition ISO XP is a high protein supplement with sweetener and by far the cleanest and Highest Quality Whey Protein Isolate available to date. ISO XP Instant is made from exceedingly fresh sweet dairy whey that is isolated and then spray dried. ISO XP has no soy added and instead uses Sunflower lecithin as the emulsifier. ISO XP is ideal for anyone looking to increase daily protein intake without any additional fats, carbohydrate or sugars. ISO XP should be mixed with water or skimmed milk for easy mixing and great taste.