What are your opinions on mouthwash?

I generally discourage regular use of antiseptic, alcohol-based mouthwash: it can disrupt the oral microbiome and reduce nitric oxide production in the mouth. 1 2

• Nitric oxide: It supports vasodilation and blood-vessel health, helping blood deliver oxygen and nutrients and carry away waste. 3
• When antiseptic mouthwash may be appropriate: It can be prescribed for serious bacterial overgrowth or oral infections; follow up with the prescribing clinician about possible effects on the oral microbiome. 4
• Saltwater rinse: A saltwater swish-and-spit, followed by a plain-water rinse, is described as a gentle, low-cost alternative that can support healthy oral bacteria. 5