“Does what it's supposed to. Effective, good quality, easy to use, value for money, taste is expected and smells good. Just don't do what I did and take a heaped teaspoon of it in one go or you'll be on the toilet clearing your bowels out completely and wondering if it will ever stop hahaha. I haven't noticed a whitening effect as I don't use it to brush my teeth and I don't use it everyday.”