The ISO-XP is a high protein supplement with sweetener and by far the cleanest and highest quality Whey Protein Isolate available, with only 0.1g Lactose and 22.5g protein per 25g serving. The ISO-XP has NO SOY added and instead uses Sunflower Lecithin as the Emulsifier.. The ISO-XP is ideal for anyone looking to increase daily protein intake without any additional fats, carbohydrate or sugars. The ISO-XP should be mixed with water or skimmed milk for easy mixing and great taste.