🧴 Liquid Foundation

Liquid foundation is classified as a liquid under aviation rules, so any bottle over 100ml will be stopped at the checkpoint. Screeners consistently enforce this — even a nearly empty full-size bottle does not qualify because the rule is based on the container's labelled volume, not what remains inside. You would be asked to surrender the foundation or return it to a checked bag.

The 100ml liquid rule for cosmetics including foundation is consistent across all major aviation regions worldwide. There are no notable exceptions that would allow a larger bottle of liquid foundation through carry-on screening in one region but not another. Powder, stick, and compact formulations are not subject to liquid rules anywhere, which is why many travellers switch to a powder or cushion foundation when flying carry-on only.

Foundation bottles can occasionally be missed if packed deep inside a bag and not placed in the liquids bag, but relying on this is not advisable — screeners are trained to identify liquids and cosmetics on X-ray, and a secondary bag search will catch it. If foundation is discovered after you have cleared the main checkpoint but before boarding, you will still be required to surrender it or check it with airline staff.

Decant your foundation into a small travel pot or bottle labelled 100ml or less and include it in your clear liquids bag alongside your other toiletries. Some cosmetics brands offer mini sizes of popular foundations that are specifically designed to meet travel liquid rules. If your foundation comes in a pump bottle larger than 100ml, a travel decant pot with a flat spatula to apply it is a simple and reusable solution.