You can spend up to 12 euros on a tube of toothpaste - or just 65 cents. Our tests show: Some of the best toothpastes are also very cheap. And it's not only worth comparing the prices. There is also a wide range of scores. The test winners are very good, the worst toothpastes are poor. The latest Stiftung Warentest study added 18 new universal toothpastes to the list.