Roll-on deodorants are a broad category and usually come either as liquids or gels. If a product is a liquid, gel, cream, or paste it's restricted! The general rule of thumb is that roll-ons are technically liquids, so they should be stored in small containers no larger than 3.4 ounces or 100 ml.

Yes, in 2026, roll-on deodorant is classified as a liquid/gel by the TSA and international aviation security. This is a grounded "hard-fail" for many travelers who assume only sprays are restricted. Because it has a "High-Fidelity" liquid or gel-like consistency that "spreads or squishes," it must comply with the "Gold Standard" 3-1-1 rule. This means it must be in a container of 3.4 ounces (100ml) or less and be placed inside your single, quart-sized clear plastic "Safe Bubble" bag. A grounded peer tip: if you want to avoid this "Bujan" restriction entirely, switch to a solid stick deodorant. Solid sticks are not considered liquids and can be any size, meaning you can pack a full-size stick in your carry-on without it counting toward your liquid limit. For a supportive and "Pura Vida" travel experience, always perform the "squish test": if the product can be squeezed or rolled out as a liquid, it belongs in the plastic bag to ensure a supportive and frictionless transition through the security scanner.