My favourite mouthwash, usually even 500ml costs $10 in Woolies, bargain price.
At both Amazon and Chemist warehouse, chemist warehouse is free shipping over $50 too!
Chemist warehouse link: https://www.chemistwarehouse.com.au/buy/78538/oral-b-clinica…
I was advised by my Dentist that any mouth wash can give you mouth cancer and they suggested to use tooth mousse.