Both my daughter and I love using this toothpowder, it has lived up to my hopes and expectations so far. I have noticed an improvement in both mine and my daughters´oral health including the 90% eradication of tartar build up, much less sensitivity and some whitening. I love that it is a small business with some great products, clean ingredients and very good customer service. They have always been quick to respond to any questions and doubts and I recommend to anyone looking for a hydroxyapatite toothpowder to try Dentafari.