Difficulty finding it could just be where you live? Every supplement shop within 50 miles of me (of which there are only 4) has an unflavored, unsweetened protein. And, if I type "unflavored unsweetened whey protein isolate" into amazon, there's 30 bags for me to choose from. I randomly clicked on 5 of the first page results, and none of them had a sweetener on their nutrition facts/ingredient list.