Yes, you can absolutely bring cotton pads on a plane in 2026, and they are not subject to any security restrictions. Because they are a solid, dry material, you can pack them in your carry-on or checked luggage in any quantity. In fact, cotton pads are a "travel hack" for 2026; you can pre-soak a few in your favorite toner or micellar water and store them in a small, airtight silicone bag. This allows you to perform your skincare routine mid-flight without having to wrestle with liquid bottles that must fit into your quart-sized clear bag. Just be aware that if you pre-soak them, they are still considered "solids" as long as there is no "free-flowing" liquid in the bag. They are also incredibly useful for padding delicate items in your makeup kit or preventing compact powders from cracking during turbulence, making them a lightweight and versatile essential for any traveler’s toiletry kit.