For a long time that I have been using this product, I never felt different. It's really amazing that this product has a longer lasting effect that made me feel so cool and fresh. It's something that good to buy because of its benefits. Well, the difference of this powder from using toothpaste is that, this product is fluoride-free. That's the reason why this product is safe to use. You don't have to wonder about this product because this has a much wider benefit than those you are using right now. Recommendable to use and for those who are reading this, you might want to love this. Effective and you won't have to bother yourself anymore.