You're rushing through security with a boarding pass in one hand and a makeup bag in the other. You have a pair of false lashes on, and you're suddenly wondering: will these set off the metal detector? I've flown with lashes more times than I can count, and here's what I know.

WILL FALSE LASHES SET OFF SECURITY?

No. Most false lashes are made from synthetic fibers like polyester or nylon, and they contain no metal. They won't trigger a metal detector. If you're wearing lash extensions, they're also safe. The adhesive is not metallic either. So focus on getting your liquids into that quart bag.

CAN YOU WEAR LASHES THROUGH SECURITY?

Yes. You can wear false lashes through airport security without any issues. You don't need to remove them or announce them. The TSA agent might not even notice them. If you have a very dramatic pair of lashes, that's fine—they're not on the prohibited list.

WILL THE DRY CABIN AIR RUIN YOUR LASHES?

The cabin humidity is about 20%, which is drier than the Sahara. Over a long flight, synthetic lash fibers can become stiff and lose their curl. If you're wearing lashes during the flight, bring a small lash comb and a hydrating eye cream. Apply a tiny dot of eye cream to your finger and press gently along the lash band. That keeps the band flexible without making it slippery.

SHOULD YOU PACK LASH ADHESIVE IN YOUR CARRY-ON?

Yes, but follow the TSA's liquids rule. If your lash adhesive is a gel, paste, or cream, it counts as a liquid. Most lash adhesives come in tubes smaller than 3.4 ounces, so they're allowed. If you're bringing a larger bottle, put it in your checked luggage. To be extra safe, put all your lash supplies together in a clear pouch.

AIRPORT LASH QUESTIONS, ANSWERED

Can I fly with lash extensions?

Yes, and many people prefer extensions because they can't fall off during a nap. Just be aware that the dry cabin air might loosen the adhesive slightly. Press your lashes gently with a clean finger after the flight to refresh the bond.

Do I need to travel with lash remover?

If you plan to remove your lashes during a long layover, bring a small bottle of oil-free remover. It counts as a liquid, so keep it under 3.4 ounces.

What's the best way to protect lashes in a suitcase?

Use a lash case or fold them in a hard-shell contact lens case. Don't shove them in a makeup bag without protection, or they'll lose their shape.

THE AIRPORT LASH CHECKLIST

Before you fly, check your lash adhesive for the liquid limit. Keep your lashes in a sturdy case. And choose a lash with a flexible band that can survive a little cabin dryness. If you do those three things, you'll land looking as fresh as you did at takeoff.