Hey friends, I am going to tell you my personal experience after using the glister toothpaste by Amway. I suggest you don’t use this toothpaste. I used for a month and my teeth started turning to yellowish shade. The second disadvantage of this toothpaste is my teeth also started paining somewhat. The company says that this toothpaste cures our teeth but it’s false information. The flavour is also very different and dose not taste good. After that I started using Colgate toothpaste and my teeth were again like before the white colour. So, Colgate is the best as per my experience and this glister toothpaste is bad.