BEST mouthwash? It depends if you’re talking about trying to prevent cavities in kids, prevention or management of gingivitis in adults, or whitening.
I love Colgate Neutrachlor 900 (pictured below), but it’s difficult to get. It’s a WEEKLY strengthening fluoride mouthwash.
https://au.shop.com/Colgate+Neutrafluor+900+Rinse+473ml-1483091050-p+.xhtml
There’s also the more readily available Colgate Neutrachlor 220 daily mouthwash, which you can buy pretty much anywhere.
Have you heard of tooth mousse? Google it, for better info than I can provide.
Duality is our forum dental expert; so, let’s hope she sees your thread, christinac.