Everything you love about Believe transparent protein, flavor included! 100% Pure Protein Isolate 29 Servings If you are lactose intolerant or watch your calories carefully, whey isolate will be the best product for you. Isolated and Concentrated is basically the same protein, but the isolate is further filtered, which means zero fat, zero sugar, and about 15% more protein per serving. Believe Isolate Protein is the very first publicly tested protein powder that gives you exactly the price you pay. This product contains 27g of the highest quality isolate concentrate. Whether you want to increase your strength, gain muscle mass or lose weight, this is for you.