You use them just as you would traditional toothpaste. Plus, they're safer, more travel-friendly and more sustainable.

A viral TikTok post about Hello toothpaste has consumers wondering whether the product is causing irreversible damage to their teeth.

In addition to toothpaste tablets, the company offers products such as floss and mouthwash. They would like to develop a host of oral care solutions using hydroxyapatite.