I just called Linda at Perfumer's Apprentice to ask her about her PG and also the Cheesecake flavoring. She admitted that her current Cheesecake isn't all that great, but just today she got a sample that she will work on duplicating. Capella's! If she ends up carrying a new cheesecake flavor, it will mostly likely duplicate Capella's flavor. Flavorings, like perfumes, cannot be copyrighted, so if someone knows enough about the chemistry, he/she can duplicate just about anything. This doesn't mean that her ingredients will be the same though. I've tried several Capella flavors and like them, but I've had them also clog up atomizers with residue.