I prefer the toothpaste tablets. I use this brand (which has fluoride): https://www.amazon.com/dp/B09G841RT4?psc=1&ref=ppx_yo2ov_dt_b_product_details. I pack it in a small plastic tube, such as this one: https://www.amazon.com/Advil-Reliever-Reducer-Ibuprofen-Temporary/dp/B01EFT7ADQ/ref=sr_1_2?crid=1KZHM4K1SA9VG&keywords=travel+advil&qid=1685632681&rdc=1&s=hpc&sprefix=travel+advil%2Chpc%2C113&sr=1-2.