The Whey Protein from Frey is one of the best I know. Freely soluble as well as great taste if you like a little sweet. The nutritional value is for concentrate ISOLAT mixture really well and thus recommended. Unfortunately, the price is a little high for the product. Quality is very good, no aspartame, is on the Cologne List and is also sold in pharmacies, so you have to worry about the raw materials and compositions used. I would recommend it for those who wants have a big purse. Look at Esn for the small purse. Same values and considerably cheaper.