Defining Liquids in Your Cabin Bag
In the context of UK aviation security, any makeup product that is not a solid powder is generally classified as a liquid. If you can pour, smear, spray, or spread the substance, security officials will treat it as a liquid. This includes all creams, gels, pastes, lotions, and aerosols, regardless of whether they are makeup, skincare, or toiletries. The core rule remains that these items must be contained in containers no larger than 100ml and must fit within a single, transparent, resealable plastic bag.
- Any makeup product that can smear, pour, or spray is considered a liquid.
- Containers must hold no more than 100ml of product.
- All liquid items must fit inside one clear, resealable plastic bag.
- Solid powders, such as pressed blush or eyeshadow, are exempt from liquid rules.
The distinction often confuses travellers because the term 'liquid' is interpreted broadly. It is not limited to water-based fluids. Even thick substances like lip gloss, mascara, and foundation are categorised as liquids because they share the same physical properties as gels and pastes. If you are unsure whether an item qualifies, the safest approach is to treat it as a liquid and pack it accordingly.
Common Makeup Items Subject to Restrictions
When preparing your washbag, you must assess the physical state of every item. A helpful mental test is to ask if the product would flow or change shape if you turned the container upside down. If the answer is yes, it falls under the 100ml liquid restriction.
The Grey Areas of Cosmetics
Many items sit in a category that sits between solid and liquid. For example, lip balms in pots, cream concealers, and gel eyeliners are all considered liquids by security scanners. Even if a container looks small, if the total volume printed on the packaging exceeds 100ml, it may be rejected at the security checkpoint, regardless of how much product is actually inside.
Use a permanent marker to label any decanted products with their volume, though be aware that security staff rely on the original packaging's volume marking to make their final decision.
Aerosols, such as setting sprays, are subject to the same volume constraints as liquids. While a standard hairspray can might be larger than 100ml, your makeup setting spray must comply. If you carry a larger canister, you risk having it confiscated at the scanner.
Differentiating Solids from Liquids
True solids are the only items exempt from the 100ml liquid rule. This category includes traditional pressed powder foundations, eyeshadow palettes, bronzers, and loose setting powders. These items do not need to be placed in your clear plastic bag and do not count towards your liquid allowance.
The Lipstick Exception
Lipstick, lip balm sticks, and solid stick concealers are typically treated as solids. Because these products do not flow or smear in the same way that a liquid foundation or lip gloss does, they are usually permitted outside your liquid bag. However, consistency matters; a very soft, cream-based lipstick might draw scrutiny, so keeping it in your bag ensures a smoother journey through security.
It is important to remember that the security officer's decision is final. If an item is ambiguous—such as a thick, cream-based bronzer stick—placing it inside your clear bag removes any doubt and prevents you from having to repack your belongings at the scanner.
Packaging Your Products Correctly
The physical bag you use to transport your makeup is just as important as the products themselves. UK regulations require that all liquids must fit into a single, transparent, resealable plastic bag that is no larger than 20cm by 20cm. The capacity of this bag is roughly one litre, and it must close comfortably without being forced.
Maximising Your Space
Since you are limited to one bag per person, strategic packing is essential. Avoid bringing full-sized bottles of foundation or primer if you are only travelling for a short period. Decanting these into smaller, clearly labelled containers allows you to bring more variety while staying under the 100ml volume limit per container. Organisation is the key to ensuring all your items fit without compromising on your routine.
The most efficient way to navigate airport security is to treat every cream, paste, and gel as a liquid, regardless of its specific texture or thickness.
Do not attempt to layer or hide liquid makeup inside your carry-on luggage. All liquid items must be removed from your bag and placed in a tray for separate screening. If you bury these items, you will delay the queue and increase the chances that your bag will be pulled for a manual search.
Airport-Specific Variations
While the 100ml liquid rule is a standard national requirement, airport infrastructure can vary. Some airports are currently upgrading to newer scanners that can handle higher volumes, but you should never rely on this. Until universal standards are implemented across every terminal, always adhere to the strictest interpretion of the rules to ensure your travel plans are not disrupted.
Checking Terminal Requirements
If you are departing from a major hub, it is worth checking the airport's official website shortly before you travel. While the rules remain consistent, specific terminals may have different procedures for how you present your items. For instance, some security lanes at Heathrow or Gatwick might have different configurations for tray loading, but the fundamental restriction on liquid volumes remains unchanged.
If you have questions about specific items, such as large aerosol deodorant on a plane, check the official airline policy. Some items may be prohibited in hand luggage for safety reasons, separate from the liquid rules, due to their pressurised nature or contents.
Managing Prohibited Items
There is a distinct difference between a liquid that is restricted by volume and an item that is outright prohibited. Certain substances, regardless of their size, may not be allowed in the cabin. Always review your airline’s specific prohibited items list alongside the standard airport security regulations.
When an Item is Confiscated
If you accidentally pack a product that exceeds the 100ml limit, be prepared for it to be removed. Security staff are trained to identify non-compliant containers quickly. If you have an expensive item you cannot afford to lose, consider packing it in your checked hold luggage instead of your hand luggage. Checked baggage is not subject to the 100ml liquid restriction, allowing you to carry full-sized products without concern.
If you are travelling with only hand luggage, you must curate your makeup bag carefully. Prioritise multi-use products, such as tints that work for both lips and cheeks, to reduce the number of individual liquid items you need to carry.
Strategic Travel Packing
For the frequent traveller, building a dedicated travel makeup kit is a practical solution. Select only the essential products you know you will use, and ensure they are all housed in containers under the 100ml threshold. This eliminates the need to audit your bag every time you fly.
Testing Your Kit
Before you head to the airport, lay out your chosen makeup items and place them into your clear plastic bag. If the bag does not seal easily, you have too many items or your containers are too bulky. Removing one or two non-essential liquid products is better than facing a refusal at security. Preparation prevents frustration during what can otherwise be a high-pressure environment.
Consider the environment of the plane as well. Cabin air is notoriously dry, so while you are focusing on makeup, remember to prioritise moisturising products that keep your skin hydrated. Stick to solid balms or very small liquid pots to ensure you comply with the rules while maintaining your skincare routine.
Navigating Security Procedures
When you reach the security checkpoint, efficiency is your primary goal. Remove your clear plastic bag from your hand luggage before you reach the front of the queue. Place it in the tray, clearly visible and separate from your other belongings.
Following Staff Instructions
Security officers may occasionally ask you to open a container or may perform an additional swipe test on your items. This is a standard procedure and is not a cause for concern. If you have followed the guidelines, your items will pass through without issue. Stay calm and observant, and listen for specific instructions from the security team, as they may have terminal-specific requests that differ slightly from the general process.
If you are travelling with items that you are unsure about, do not try to hide them. Present them openly. If an item is non-compliant, it is better to have it identified by the security officer than to have your bag flagged for a manual search, which takes significantly longer.
Summary of Essential Rules
To summarise the current guidance, all liquid, gel, and paste makeup must be kept in containers of 100ml or less. These must fit into a single, resealable, transparent bag. Solid powders are excluded from these rules. By following these parameters, you ensure your passage through security is as smooth as possible.
Final Checklist
Before leaving for the airport, perform a final review of your makeup bag. Check the volume of any liquid foundations, mascaras, or lip glosses. Ensure your clear bag is clean and in good condition. Consistency is your best strategy for a stress-free experience, so treat all suspicious textures as liquids and pack accordingly.
Remember that rules regarding security are subject to change based on threat levels and technological updates. Always check the official website of your departing airport for the most current information. Being informed is your best defence against unnecessary delays.