Contact Lens Solution
Contact lens solution is allowed in carry-on only in 3.4 oz bottles, or full-size in checked bags.
Carry-on
Allowed with conditions
Checked
Allowed
Carry-on details
Allowed with conditions. Contact lens solution is a liquid and must be in a container of 3.4 oz (100 mL) or less to fit in your carry-on liquids bag. Some solutions contain chemicals that can trigger an alarm during screening, which may lead to additional inspection — that's routine, not a sign it's prohibited.
Checked-bag details
Allowed at full size in checked baggage, with no quantity limit — a good option if you use large bottles.
Quantity limit
3.4 oz (per container)
Special instructions
Pack a spare travel-size bottle in your carry-on liquids bag in case your checked bag is delayed.
Related rules
FAQ
- Can I bring a big bottle of contact lens solution in my carry-on?
- No — it must be 3.4 oz (100 mL) or less for carry-on. Pack a larger bottle in checked luggage instead, or buy more at your destination.
- Why did my contact lens solution get flagged at security?
- Some contact lens solution formulas contain chemicals that can trigger the checkpoint's liquid scanner, leading to an extra inspection. This is routine and doesn't mean it's prohibited.
Related items
Source: TSA — What Can I Bring? · Last verified: 2026-07-30
Final decision rests with the security officer at the checkpoint.