I recommend Dr. Tung's dental floss.

I recommend Dr. Tung's dental floss.

Above all, it is soft, so it is good because it does not irritate the gums.

However, since the floss swells up as soon as it comes into contact with saliva or water, it may feel somewhat uncomfortable to use. Nevertheless, if you have sensitive teeth or gums, I highly recommend trying Dr. Tung's dental floss.