Carry-on liquid rules in 2026 are starting to change, but not in a way you can rely on just yet. While some airports are introducing new scanners that allow larger liquids, most still enforce the standard 100ml rule. This guide breaks down exactly what you can and can’t take in your carry-on, what counts as a liquid, and how to pack your toiletries properly. You’ll also find practical beauty hacks, travel-size product recommendations, and simple ways to avoid delays or having items thrown out at airport security.