Amazon has CloSYS Fluoride Toothpaste, 7 Ounce (2 Pack), Gentle Mint, Whitening, Enamel Protection, Sulfate Free, 7 Ounce (Pack of 2), for $17.13 (https://amzn.to/3Q4wCIN) after an extra 20% off subscribe and save.
(https://m.media-amazon.com/images/I/71Vaxg+W1VL._SL1500_.jpg)