Can I take mouthwash on a plane?
Yes — but it's a liquid. Cabin bottles must be 100ml / 3.4oz or smaller. Full bottles travel in checked baggage.
Does mouthwash count as a liquid for airport security?
Mouthwash is a textbook liquid for TSA, UK and EU. The 100ml cabin rule applies. Travel-sized mouthwash bottles are widely sold.
Triple-check
Security · Cabin · CheckedMouthwash is a textbook liquid for TSA, UK and EU. The 100ml cabin rule applies. Travel-sized mouthwash bottles are widely sold.
Each container 100ml / 3.4oz or smaller, all fitting inside one clear 1-quart / 1-litre bag.
Any size in checked baggage.
Liquid Limits focuses on airport security and liquid-like travel items. Separate customs, import, airline, or destination laws may apply. Customs and import rules vary by destination. Use the route-specific links below for your exact origin and destination. What this site covers and doesn't cover.
Frequently asked questions
Is mouthwash alcohol an issue for security?
No — the alcohol content in mouthwash is well below the 70% ABV cap that aviation security applies to alcohol. The 100ml cabin liquids rule still applies.
LiquidLimits.com is a travel planning tool, not an official airport or government source. Rules can change between trips and between terminals. Always check the official airport or aviation security guidance before you travel, and when in doubt pack to the stricter 100ml cabin-bag rule.