I recommend TheraBreath mouthwash.

This is a magic mouthwash that really gets rid of bad breath.

I've been buying directly from iHerb for several years now, but it seems like it's blocked recently.

It's sold at Olive Young too, but the ingredients seem slightly different from the imported version. Still, it leaves your mouth feeling so refreshed and gets rid of bad breath, so you should definitely give it a try!!