Flying with Toiletries: TSA, Customs and Airport Rules (2025)

Traveling with toiletries seems simple—until you’re standing in the security line, wondering if your favorite face cream, hairspray, or sunscreen will make it through. And while the TSA’s 3-1-1 rule is familiar to most U.S. travelers, international flights come with their own set of rules, many of which have changed in 2025.

Whether you’re packing for a weekend getaway or a multi-country adventure, this guide breaks down everything you need to know—from TSA screening to global customs restrictions, aerosol limits, and how to avoid having your personal care products confiscated at the worst moment.

We’ll cover:

• TSA rules for liquids, gels, aerosols, and solid alternatives
• Checked bag limits vs carry-on allowances
• Customs rules for toiletries in countries like Japan, the UK, Australia, and the Middle East
• What ingredients and product types may be banned abroad
• How to pack toiletries to prevent leaks, delays, or security issues

KEEN TIP: If you’re also flying with grooming tools like razors, clippers, or curling irons, check out our Air Travel with Grooming Tools guide for details specific to those items.

Let’s get you packed with confidence—starting with the latest 2025 TSA rules for toiletries on U.S. flights.

1. TSA Rules for Toiletries in 2025 (U.S. Flights Only)

1.1 TSA’s 3-1-1 Liquid Rule Explained

The TSA’s 3-1-1 rule remains the cornerstone of what you can bring in your carry-on when it comes to toiletries. It’s simple in theory: each liquid must be in a container no larger than 3.4 ounces (100 milliliters), all your containers must fit into one quart-sized clear plastic bag, and each passenger is allowed just one bag.

But in practice, travelers often get tripped up over what actually counts as a liquid. TSA’s definition is broad: if it can be squeezed, smeared, sprayed, pumped, or poured, it’s treated as a liquid or gel. That includes things like:

• Face creams and moisturizers
• Foundation and liquid makeup
• Toothpaste and mouthwash
• Gel deodorants and roll-ons
• Hair gel, hair serum, and leave-in conditioners
• Sunscreens and hand sanitizers

One of the most common questions on @AskTSA’s Twitter account is whether a half-full 6 oz bottle of lotion is okay. The answer? No. It’s about the labeled container size, not how much is inside. If the label says 6 oz, it won’t pass through TSA—even if it’s nearly empty.

2. Customs and International Toiletry Rules

2.1 Why Customs Is Different from TSA

TSA rules only cover your departure from or within the U.S. Once you land in another country, customs agents at your destination enforce their own rules—completely separate from what TSA allowed at departure. Even if your items made it through U.S. security, they could be confiscated on arrival if they contain banned ingredients or exceed quantity limits.

Unlike TSA, which focuses on safety and onboard hazards, customs regulations are about import laws, public health, and ingredient restrictions. That means you could be flagged for things like:

• Bringing in natural or herbal creams without proper labeling
• Packing aerosols that contain alcohol or pressurized gases
• Carrying more than a 3-month supply of certain toiletries
• Entering with products that contain banned ingredients like hydroquinone or certain essential oils

Keen Tip: Always check the customs rules of your destination country—especially for items labeled organic, prescription-grade, or alcohol-based.

2.2 Toiletry Limits and Labeling Abroad

Each country defines “personal use” differently. While the U.S. and Canada are relatively lenient, other countries may scrutinize your products more closely, especially if they are high value or contain restricted ingredients.

Here’s what customs officers often look for:

• Original packaging with clear ingredient labels
• Expiration dates or proof of shelf life
• Alcohol content listed in percentages
• Proof that the quantity is for personal use, not resale

If you bring artisanal skincare or custom-blended products, you may need to explain what they are—even if they’re legal in the U.S.

Keen Tip: Avoid decanting toiletries into generic travel bottles for international travel unless you label them clearly. An unlabeled bottle of lotion can raise eyebrows at customs, especially in regions with strict biosecurity laws.

2.3 Countries with Strict Rules (Grouped by Region)

Some countries are far more particular than others. Below are quick summaries of regions where travelers most often run into toiletry trouble.

European Union and UK

• EU still enforces the 100ml liquid rule at most airports
• UK is phasing in CT scanners to eliminate the rule—but not all airports have them yet
• Both may confiscate herbal products without ingredient documentation
• The Schengen Area requires separate screening when flying between Schengen and non-Schengen countries

Asia-Pacific

• Japan requires declaration of any liquid medication or herbal toiletries
• China allows only 10 containers of liquid toiletry per person in carry-on
• South Korea has advanced screening but enforces strict packaging requirements
• Singapore and Thailand both limit aerosols and often flag perfumes

Middle East

• UAE, Qatar, and Bahrain allow personal care items with up to 70% alcohol content
• Saudi Arabia bans all alcohol-based toiletries, including mouthwash and perfume
• Kuwait has zero tolerance for alcohol in personal items, even if clearly labeled

Africa

• South Africa limits aerosol quantity and requires documentation for prescription or herbal items
• Morocco and Egypt may limit how much perfume or scented product you bring in
• East African countries like Kenya often flag large containers of natural oils or creams

Australia and New Zealand

• Extremely strict on organic or plant-based products
• Anything with eucalyptus, tea tree oil, or beeswax must be declared
• Bee-based products (like honey lip balm) can be confiscated without warning
• Sunscreens with reef-damaging ingredients are restricted on some Pacific Islands

Canada and Mexico

• Canada mirrors U.S. rules for carry-on and checked bags but prohibits cannabis-infused products even if legal in your home state
• Mexico enforces ingredient labeling in Spanish and limits herbal or homeopathic imports without approval

KEEN TIP: Island nations like Fiji, Palau, and Bonaire may have extra restrictions on sunscreen ingredients to protect coral reefs. Always check both customs and environmental protection rules when traveling to remote beach destinations.

2.4 What to Do If Your Toiletries Are Confiscated

If customs agents seize your toiletries, it doesn’t always mean they’re gone forever—but you do need to act fast and respectfully.

In most cases, the product will be discarded on the spot unless you can present:

• Proof of ingredients or safety (like an English-Spanish label or MSDS sheet)
• Documentation from a doctor, especially for medical creams or liquids
• A letter explaining the use, signed by your physician or prescribing provider

Ask the agent if the item can be held for pickup, returned to your home address, or declared as abandoned to avoid penalties. In some countries, they’ll offer a form or reference number for follow-up—but not always.

KEEN TIP: If you travel with high-value or essential products, take a photo of each item, its label, and your supporting documents before the trip. Store copies in the cloud and bring a printout in your carry-on.

1.2 What Toiletries Are Allowed in Carry-On?

In addition to standard liquids, you’re allowed a wide range of solid and aerosol toiletries in your carry-on—with some important conditions.

Aerosols are allowed as long as each container is 3.4 oz or smaller and fits in your quart-size bag. They must also be:

• Labeled for personal care or hygiene use (e.g., deodorant, hairspray)
• Non-flammable and non-toxic
• Equipped with a protective cap or secure nozzle

Solid toiletries are unlimited. These include:

• Bar soap and shampoo bars
• Toothpaste tablets
• Stick deodorant
• Powdered makeup
• Facial cleansing wipes

These don’t count against your liquid limit, so they’re a great way to free up space in your 3-1-1 bag.

KEEN TIP: Switching from liquid to solid versions of your favorite products is one of the easiest ways to pack smarter and avoid issues at TSA.

1.3 What Toiletries Belong in Checked Bags?

Checked luggage offers more flexibility, but there are still limits you need to know.

Larger liquid and aerosol containers can go in your checked bag—perfect for full-size shampoo, sunscreen, and shaving cream. However, the TSA caps certain items:

• Aerosols: Max 18 oz per container, with a total limit of 70 oz per person
• Alcohol-based products: Must be under 70% alcohol content
• Flammable items: Not allowed at all, even in checked bags

To prevent messes, be sure to pack your toiletries with leak-proofing in mind. That means:

• Tightening lids and using screw caps
• Placing items in double plastic bags
• Cushioning them with soft clothing or a toiletry cube

KEEN TIP: If you’re flying internationally, checked bags go through customs on arrival—so even full-size toiletries can be questioned or confiscated abroad if they contain restricted ingredients.

1.4 Special TSA Exceptions for Toiletries

There are a few important exceptions to the 3-1-1 rule, but they come with documentation requirements.

Medically necessary liquids like prescription creams, saline solutions, or wound care gels are allowed in larger amounts. To bring them through security:

• Carry a prescription label or doctor’s note
• Inform the TSA officer during screening
• Keep the items in a separate, easily accessible pouch

Baby and toddler products—like formula, breast milk, toddler drinks, and puree pouches—are also exempt. Just let the agent know, and expect them to test the liquids for security purposes.

Passengers with disabilities or chronic conditions can travel with larger amounts of hygiene or toiletry items like lubricants, incontinence products, or medical rinses, provided they’re declared and documented.

KEEN TIP: Have a translated version of any doctor’s letter if you’re connecting to or from an international flight. TSA may not require it, but customs at your final destination might.

1.5 Common TSA Mistakes and How to Avoid Them

Even frequent travelers make mistakes with toiletries. The most common include:

• Bringing oversized containers assuming that being half full makes them okay (it doesn’t)
• Forgetting that items like mascara or lip gloss count as liquids
• Packing aerosol sprays like sunscreen or dry shampoo without the protective cap
• Bringing flammable sprays like body glitter or spray-on disinfectants, which are banned from both carry-on and checked bags

And don’t assume TSA will let you through with a smile if it’s “just a small bottle.” The agents follow size labels, not your judgment.

KEEN TIP: If you’re unsure about a specific item, you can ask @AskTSA on X (formerly Twitter). They respond quickly with clear answers based on current policy.

2. Customs and International Toiletry Rules

2.1 Why Customs Is Different from TSA

TSA rules only cover your departure from or within the U.S. Once you land in another country, customs agents at your destination enforce their own rules—completely separate from what TSA allowed at departure. Even if your items made it through U.S. security, they could be confiscated on arrival if they contain banned ingredients or exceed quantity limits.

Unlike TSA, which focuses on safety and onboard hazards, customs regulations are about import laws, public health, and ingredient restrictions. That means you could be flagged for things like:

• Bringing in natural or herbal creams without proper labeling
• Packing aerosols that contain alcohol or pressurized gases
• Carrying more than a 3-month supply of certain toiletries
• Entering with products that contain banned ingredients like hydroquinone or certain essential oils

KEEN TIP: Always check the customs rules of your destination country—especially for items labeled organic, prescription-grade, or alcohol-based.

2.2 Toiletry Limits and Labeling Abroad

Each country defines “personal use” differently. While the U.S. and Canada are relatively lenient, other countries may scrutinize your products more closely, especially if they are high value or contain restricted ingredients.

Here’s what customs officers often look for:

• Original packaging with clear ingredient labels
• Expiration dates or proof of shelf life
• Alcohol content listed in percentages
• Proof that the quantity is for personal use, not resale

If you bring artisanal skincare or custom-blended products, you may need to explain what they are—even if they’re legal in the U.S.

KEEN TIP: Avoid decanting toiletries into generic travel bottles for international travel unless you label them clearly. An unlabeled bottle of lotion can raise eyebrows at customs, especially in regions with strict biosecurity laws.

2.3 Countries with Strict Rules (Grouped by Region)

2.31 European Union and the UK

The EU and UK generally follow the global 100ml/3.4oz liquid rule for carry-on toiletries. However, with the rollout of new CT scanners, some airports are relaxing these rules—while others still enforce them strictly. The inconsistency is causing confusion, especially among travelers transiting between EU countries.

• EU Airports: Still enforce 100ml limits unless scanners are in place. You must place all liquids in a 1-liter clear bag.
• UK Airports: Some, like London City and Teesside, now allow liquids up to 2 liters, but major hubs like Heathrow and Gatwick may still follow old rules.
• Customs: Many EU countries restrict herbal products, CBD-infused items, and essential oils unless properly labeled. Some skincare ingredients banned in the EU may still be common in U.S. products.

Banned or Restricted Ingredients: Hydroquinone (skin lighteners), certain preservatives, some essential oils

KEEN TIP: When connecting through both EU and non-EU airports (like Ireland or Switzerland), pack for the strictest rules. And don’t assume the UK and EU share customs policies—post-Brexit, they don’t.

2.32 Asia-Pacific

The Asia-Pacific region contains some of the most varied and least traveler-friendly toiletry rules, especially when it comes to liquids, labeling, and natural ingredients.

• Japan: Strict on undeclared aerosols and requires medical toiletries (like contact lens solution or prescription creams) to be declared—even in small amounts. Most signage is in Japanese, so printed labels help.
• China: Enforces a 100ml rule for carry-ons and limits you to 10 total toiletry containers. Aerosols must be under 500ml each and clearly labeled for personal use.
• South Korea: Uses advanced scanning tech but is strict about cosmetics with whitening agents or high alcohol content. Packaging must be sealed and labeled.
• Singapore and Thailand: Often enforce perfume restrictions and confiscate products with unlisted ingredients. Thailand also flags home remedies and creams with strong scents.

KEEN TIP: Translate product ingredient lists into the local language when visiting Japan, South Korea, or China—especially if you’re carrying traditional or herbal products. Airport staff may not speak English and often err on the side of caution.

2.33 Middle East

Middle Eastern countries have complex rules around toiletries—especially those containing alcohol or fragrance. What’s allowed in your carry-on may still be seized at customs.

• UAE (Dubai, Abu Dhabi): Allows 100ml toiletries in carry-on and larger in checked baggage, but alcohol-based items must be under 70% concentration. CBD or cannabis-infused toiletries are banned outright.
• Saudi Arabia: Bans all alcohol-based toiletries, including perfumes, mouthwash, colognes, and even some hairsprays. Expect customs screening to be detailed.
• Qatar: Permits alcohol-based products under 70% concentration but you must declare them if they’re in checked bags. Products without labeling may be confiscated.
• Kuwait: Zero tolerance for any alcohol content in cosmetics. Even standard products like aftershave or face toner may be seized.
• Bahrain: Follows UAE-style rules with some variation. Alcohol content must be clearly labeled, and customs agents may ask to open containers.

KEEN TIP: Scan the ingredient list of all toiletries before flying to the Middle East. Watch for “ethanol,” “alcohol denat.,” or “isopropyl alcohol.” When in doubt, pack solid alternatives or bring printed documentation from the manufacturer.

2.34 Africa

African nations vary widely, with more lenient rules in some regions and very strict enforcement in others—especially regarding aerosols, herbs, and perfumes.

• South Africa: Allows aerosols but limits total volume. Herbal products, home remedies, and natural oils must be declared. Customs may seize anything labeled “traditional medicine” unless it has a permit.
• East Africa (Kenya, Uganda, Tanzania): Generally follow the 3-1-1 rule for liquids but have unpredictable customs enforcement. Organic products or raw materials like shea butter or black soap are often flagged.
• North Africa (Morocco, Egypt, Tunisia): Religious and health restrictions apply. Alcohol-based items may be limited. In Morocco, perfumes over 250ml may be questioned; in Egypt, expect extra scrutiny of all personal care items.

KEEN TIP: Don’t assume small items will pass unnoticed. If you’re bringing any toiletry over 100ml into African countries, especially those labeled as herbal or homemade, be ready to declare it and show its purpose.

2.35 Australia and New Zealand

Australia and New Zealand have some of the strictest biosecurity laws in the world, and their customs inspections are famously thorough—even for sealed commercial products.

• Australia: Requires declaration of any item containing natural or organic ingredients, including tea tree oil, eucalyptus, shea butter, and beeswax. You must declare even if the item is factory-sealed.
• New Zealand: Follows similar rules and may seize products containing raw ingredients or natural extracts unless clearly labeled. They’re especially strict about bee products.
• Pacific Islands (Fiji, Palau, Samoa): Often restrict aerosol and sunscreen ingredients to protect coral reefs. Natural products must be declared on arrival.

KEEN TIP: If you pack natural toiletries, list all ingredients on a printed page and declare them at customs—especially in Australia and New Zealand. Failing to declare something, even unintentionally, can result in fines.

2.36 Canada, Mexico, and the Caribbean

North American destinations tend to follow TSA-style policies, but customs rules can still catch travelers off guard—especially with herbal products, cannabis-based creams, or reef-unfriendly sunscreens.

• Canada: Follows the 100ml rule and allows solid toiletries in unlimited amounts. However, any cannabis-infused toiletry (including creams or balms) is banned at the border—even if legal where you’re flying from.
• Mexico: Follows international rules but requires that prescription toiletries or medical creams have Spanish labeling. Natural and organic items often require an ingredients list in Spanish.
• Caribbean Islands: Rules vary by island. Many have banned certain sunscreen ingredients (like oxybenzone and octinoxate) to protect marine life. Others limit aerosol amounts or require you to declare natural toiletries.

KEEN TIP: If you’re island-hopping in the Caribbean, research each destination’s rules—not just the first country you land in. Reef-safe sunscreen may be mandatory, and customs may seize unlabeled or high-alcohol products.

2.4 What to Do If Your Toiletries Are Confiscated

If you arrive in another country and customs agents pull your bag aside to inspect your toiletries, don’t panic—this happens more often than you’d think, especially when you’re carrying unfamiliar products, oversized containers, or anything labeled natural or medicated.

In most cases, the agent will either discard the item, ask you to declare it officially, or issue a written warning. Very rarely will you face a fine unless you’ve violated a specific law or failed to declare something you were clearly required to.

Customs officers are more likely to confiscate items if:

• The product lacks an ingredient list
• The container exceeds the allowable size for that country (especially aerosols)
• It contains banned or restricted ingredients like CBD, alcohol, or hydroquinone
• It’s an organic or herbal product without original labeling
• It’s a medical item you didn’t declare and can’t document

Here’s what this can look like in practice:

• In Japan, undeclared liquid medications—even if over-the-counter in the U.S.—may be confiscated unless you have a doctor’s note and printed ingredients.
• In Saudi Arabia, any toiletry with alcohol as an ingredient (even mouthwash or cologne) will be seized immediately. You likely won’t get it back.
• In Australia, a sealed lotion with “shea butter” as a top ingredient can be flagged unless you declared it on your arrival card. If you did declare it, customs may let you keep it after inspection.
• In France, you may be asked to open cosmetic jars for inspection if the ingredient list is missing or not in French. If the product is unidentifiable, they may dispose of it.

If something is confiscated, try to stay calm and polite. Ask the officer:

• If the product can be held for pickup or mailed back home
• Whether you will be issued a written record or formal customs notice
• If the item is banned or just needs to be declared next time

Some customs officers will explain the issue clearly; others may be vague. If you’re unsure why an item was taken, ask them to point to the ingredient or quantity that caused the problem.

KEEN TIP: Take clear photos of all toiletry labels and ingredient lists before you travel. Keep those photos in your phone’s gallery and a cloud folder. If customs asks questions, you can quickly show what the product is—and prove that it’s for personal use.

KEEN TIP: If you’re traveling with anything prescription-based or medically necessary, carry a letter from your doctor and translate it into the language of your destination. This greatly improves your chances of avoiding confiscation, especially in Asia, the Middle East, or the EU.

2.5 Don’t End Up in the Global Database

You might think having a toiletry item confiscated is no big deal—but many travelers don’t realize that customs violations are often recorded and shared between countries. This can lead to extra inspections on future trips and, in some cases, being denied entry.

📌 KNOW THIS BEFORE YOU FLY
Yes—Customs Can Flag You in a Global Database

Most travelers don’t know this:
Many countries share information about customs violations, especially when it involves medications, organic products, or restricted toiletry ingredients. If your name is flagged once, it may follow you on future trips.

🚨 What This Means for You:

• A confiscation or failure to declare may be recorded—even if it seems minor
• You could be subject to extra screening the next time you fly internationally
• In some countries, repeat infractions—even accidental ones—can result in detention or refusal of entry

KEEN TIP: Customs agents have wide discretion. If they’ve seen your name before in another country’s system, they’re more likely to question you, inspect your bags, and escalate concerns.

That’s why getting it right the first time matters so much.

3. Packing Toiletries for Air Travel

Packing toiletries isn’t just about saving space—it’s about avoiding delays at airport security and preventing messy surprises when you open your suitcase. Whether you’re flying domestically or internationally, packing smart can make your whole trip smoother.

3.1 Smart Carry-On Packing (Domestic vs International)

If you’re flying within the U.S., you’ll only be dealing with TSA rules. The 3-1-1 liquid rule applies, meaning each liquid must be 3.4 ounces or less, all your liquids must fit into a single quart-sized plastic bag, and that bag must be placed in your carry-on—not your purse or coat pocket.

That’s simple enough. But the moment your trip includes a connecting or final flight to another country, carry-on rules shift. Even if your liquids pass TSA screening, you could get flagged by airport security in places like London, Tokyo, or Dubai during a layover—even if you’re not changing planes. Many travelers have had their toiletries confiscated at a transfer airport without ever leaving the gate area.

To make carry-on packing easier:

• Choose a durable, zippered quart-size bag instead of a thin ziplock
• Stand up bottles inside your bag to reduce leaks
• Use refillable TSA-compliant bottles and label them clearly
• Group all your liquid toiletries together and place them at the top of your carry-on so you can remove them quickly

KEEN TIP: Don’t bury your liquids under a laptop or shoes. TSA officers—and international security staff—often want to screen them separately. You’ll move through faster if they’re easy to grab.

KEEN TIP: If you’re taking an international trip with a layover in the EU or UK, follow their stricter rules even if TSA was more relaxed. One confiscated item can derail your day.

3.2 Checked Bag Best Practices (Especially for International Travel)

Checked bags give you more flexibility. You can pack full-size items, aerosol sprays, and extras you wouldn’t bring in your carry-on. But they’re not a free-for-all—especially if you’re landing in another country where customs rules take effect immediately.

Here’s where travelers get tripped up. You pack a big bottle of hairspray or lotion in your checked bag, thinking it’s safer there. But when you land in Sydney, Amsterdam, or Tokyo, your suitcase gets flagged during customs screening—not because of the size, but because of what’s in the product.

Toiletries to be cautious with in checked bags:

• High-alcohol sprays like cologne, mouthwash, or aftershave
• Homemade or unlabeled products like herbal oils or balm
• Natural products with essential oils, bee products, or unprocessed ingredients
• Pressurized containers (like shaving cream) without protective caps

To pack smart:

• Use double zip-top bags to contain leaks
• Wrap liquids in soft clothing and place in a corner, not the center of your bag
• Avoid flip-cap bottles that can pop open during flight
• Don’t overpack bottles—leave some air space so they don’t burst with pressure changes

KEEN TIP: If you’re bringing multiple liquids in checked luggage, create a simple printed list of what you packed. Customs may ask you to explain a product, and having it written down can help.

KEEN TIP: In countries like Australia or New Zealand, a customs officer may actually open your toiletry bottles to inspect them—especially if they’re organic. Keep those items in one easy-to-access section of your suitcase.

3.3 Leak-Proofing Techniques You’ll Actually Use

One of the most common travel disasters? Opening your bag to find your favorite lotion or shampoo has exploded. It doesn’t just ruin your clothes—it wastes expensive products and adds cleanup stress.

These simple steps can prevent 90% of toiletry leaks:

• Unscrew each cap and place a small piece of plastic wrap over the opening. Then screw the cap back on tightly
• Use bottles with locking pumps or twist closures rather than flip caps
• Leave space in each container—liquids expand under pressure
• Pack upright when possible, and always store toiletries near the top or in side compartments

KEEN TIP: If you’re worried about leaks, test your packed toiletry bag before you fly. Place it in a clean sink and press down. If anything leaks, you’ll catch it before your suitcase does.

KEEN TIP: Pack a small microfiber cloth and a few sanitizing wipes. If you do get a leak, you’ll be able to clean it up without ruining everything in your luggage.

3.4 Space-Saving Solutions and Organization Tips

Toiletries can quickly take up more space than you expect. And if you’re traveling with medical supplies, a CPAP, or refrigerated medications, you’ll want every inch of room available.

To save space without cutting corners:

• Switch to solid alternatives like shampoo bars, toothpaste tablets, or deodorant sticks
• Choose multi-use products (moisturizer with SPF, tinted lip balm with sun protection)
• Use mini refillable jars for specialty products like eye cream, instead of bringing the full-size container
• Keep travel-sized items in your suitcase even when you’re home—repacking is faster and less stressful

KEEN TIP: Consider keeping two toiletry bags—one for short trips and one for long. It’ll help you avoid overpacking and make planning easier.

KEEN TIP: A hanging toiletry bag is one of the best purchases you can make. It keeps hotel counters clutter-free and makes small bathrooms manageable. Choose one with separate compartments and a removable clear pouch for airport screening. My favorite toiletry bag combines spots to put makeup and jewelry and it hangs for super easy use at hotels. Shop Traveler’s Picks to check it out.

4. Special Toiletry Categories

Some toiletries require a little extra thought when packing—not because they’re prohibited, but because they’re more likely to be misinterpreted, flagged, or mishandled during airport screening or customs checks. In this section, we’ll walk through the items travelers most often pack incorrectly or don’t realize carry extra risk.

These aren’t niche concerns. Most travelers pack at least one of the categories below, especially on longer trips. Knowing how to handle them in advance can mean the difference between breezing through security and having an expensive product tossed in the bin.

4.1 Expensive or Luxury Skincare

Many travelers like to bring their best skincare on trips, especially for dry airplane cabins or long-haul flights. But luxury items can pose two problems: they’re often liquid-based and over 3.4 ounces, and they sometimes include restricted active ingredients that aren’t allowed in certain countries.

Face serums, eye creams, and anti-aging products frequently contain retinoids, acids, or hydroquinone—all of which are regulated or banned in places like the EU, Japan, and Australia. Even if the TSA lets them through, customs agents may not.

If the item is small enough for carry-on but valuable, you’ll want to:

• Cushion it carefully and keep it in your quart-sized liquids bag
• Avoid transferring it to a generic bottle—original packaging shows proof of personal use
• Carry a receipt, product photo, or a sample box if the price tag exceeds $100

If the item is too large, pack it in your checked bag but make sure it’s leak-proofed and labeled. High-end brands often offer travel kits specifically designed to meet air travel regulations. These are a smart investment if you frequently travel with premium skincare.

KEEN TIP: Bring only what you’ll use during the trip. If your $200 cream only gets used once, it’s not worth the risk. Consider transferring a portion to a labeled 1 oz jar and leaving the full-size at home.

4.2 Organic, Natural, and Herbal Toiletries

Products labeled organic, natural, or handmade might sound harmless, but they draw extra scrutiny from customs—especially when traveling to countries that regulate plant-based or unverified imports. Unlike mass-produced items, these often lack standardized labeling or safety documentation, which raises red flags for customs officers looking to prevent contamination, disease, or undeclared imports.

Common examples include:

• Essential oils in dropper bottles
• Homemade salves or creams with beeswax, turmeric, or tea tree
• Natural deodorants or shampoos in repurposed jars
• Artisanal soaps or face masks without barcodes or expiration dates

If you’re flying into Australia, New Zealand, Japan, or the UAE, these types of products may need to be declared—and even then, they’re not guaranteed to be allowed in. If you can’t show what’s inside or prove the item’s ingredients, expect it to be confiscated.

To protect your items:

• Keep all original packaging intact
• Print out an ingredient list from the manufacturer if it’s not on the label
• Store these items near the top of your suitcase in case customs needs to inspect them

KEEN TIP: Even small jars or bars of natural product can trigger inspection if they’re unbranded or written in a foreign language. Always label them clearly in English and, if possible, in the language of your destination.

4.3 Baby and Medical Toiletries

Toiletries intended for babies or for medical purposes are treated as exemptions by most airport security and customs agencies, but only if you follow the correct procedures. These items may exceed the normal liquid limits but are typically allowed when they’re properly documented and declared.

If you’re traveling with an infant or managing a chronic condition, this might include:

• Baby formula or expressed breast milk
• Diaper rash cream and liquid vitamins
• Contact lens solution over 3.4 oz
• Medicated creams for eczema, pain, or wounds
• Personal lubricants or rinse solutions related to disability care

These items should never be packed casually in your 3-1-1 bag. Instead, store them in a separate pouch and let the TSA or international security officer know before your bag is screened. Most will ask to swab or inspect the container.

To make the process easier:

• Carry your items in a clear pouch with easy-to-read labels
• Include a doctor’s letter or prescription if the item looks medical
• Translate your documentation into the local language for overseas travel

If your medical item is over 3.4 oz or contains ingredients that could be restricted in some countries (like alcohol, steroids, or plant-based compounds), a travel letter from your doctor is essential. Get a free template in our guide: Simplify Air Travel with Meds: Free Doctor’s Letter Template. This letter should include:

• Your full name and date of birth
• The medical reason for the product
• The name of the product and how it is used
• A statement that it is required for your care while traveling
• The doctor’s contact information

KEEN TIP: Take a photo of your doctor’s letter and prescription label and store it in your phone. Also save a printed copy in your carry-on, and if you’re flying internationally, bring a translated version. This makes it easy to show documentation if you’re stopped at customs or security—even when Wi-Fi isn’t available.

4.4 Solid Toiletry Alternatives (And Why They’re Ideal for Travel)

Solid toiletries are one of the best-kept secrets for stress-free air travel. They’re not subject to liquid restrictions, don’t leak, and are unlikely to be questioned at security. For international trips, they’re also easier to get through customs, since they rarely require ingredient documentation.

These days, the options go far beyond bar soap. Travelers can now pack:

• Shampoo and conditioner bars
• Toothpaste tablets
• Solid lotion bars and sunscreen sticks
• Stick deodorant and solid perfume balms
• Powdered facial cleansers and dry body scrubs

These products save room in your quart-sized bag and often come in reusable tins or biodegradable cases—an added bonus if you’re packing light or heading somewhere remote.

To make the most of solid alternatives:

• Label them clearly, especially if they’re handmade
• Store them in ventilated containers so they can dry between uses
• Don’t wrap them in plastic wrap or foil—this can raise suspicion at customs
• Pack them near the top of your bag in case you’re asked to explain what they are

KEEN TIP: Solid products are ideal for long layovers and multi-leg international flights. You’ll avoid re-screening issues and gain back space in your liquids bag—while keeping your toiletries functional and compact.

5. Pre-Flight Preparation

Packing smart means more than zipping up a bag of toiletries and hoping for the best. A little extra preparation before you leave for the airport can save you time, avoid delays at security, and protect valuable or medically necessary items from being confiscated. Especially if you’re flying internationally, your documents and organization matter just as much as what’s in your quart-sized bag.

This section walks you through the key steps that frequent travelers use to stay ahead of the curve—and avoid unnecessary hassle at the gate or customs desk.

5.1 Getting Your Documentation in Order

Traveling with liquid medications, prescription creams, or even medical rinses over 3.4 oz? These items may be allowed in carry-on bags, but only if you’re prepared to prove why you need them. Most TSA officers and customs agents aren’t looking to give you a hard time—but they will ask questions if something isn’t labeled, looks unusual, or exceeds size limits.

That’s why having proper documentation matters. Before you travel, create a folder with the essentials:

• Your prescription labels (or photos of them)
• A letter from your doctor explaining any liquids or creams over the size limit
• Ingredient lists for organic or herbal products that don’t come in retail packaging
• Receipts for duty-free purchases, especially if you’re traveling with luxury toiletries or gifts

Keep physical copies in your carry-on, tucked into a clear document sleeve. For backup, store digital copies in a photo album on your phone labeled “Travel Documents.” This allows you to pull them up instantly if asked by TSA or customs.

KEEN TIP: Don’t depend on Wi-Fi or mobile data. Always save your important travel documents offline—especially if you’re flying internationally or transiting through airports with poor signal.

5.2 Why a Doctor’s Letter Can Save the Day

If you’re carrying any toiletry or liquid that’s medically necessary—but technically exceeds the TSA’s 3.4 oz limit—a travel letter from your doctor is one of the best protections you can bring.

This letter doesn’t have to be long. It should simply confirm your name, the item in question, why it’s needed during travel, and your doctor’s contact information. It’s most effective when printed on official letterhead and signed.

Internationally, a translated version is ideal—especially if you’re traveling to countries where customs officers may not speak English but still need to verify what’s in your bag. Some travelers have had perfectly legitimate medications seized simply because the packaging was unfamiliar or there was no documentation to back it up.

KEEN TIP: A travel letter is especially useful if you’re flying with anything that’s not obviously “medical,” like a prescription moisturizer, oral rinse, or herbal remedy. When in doubt, explain it before they ask.

5.3 Know Your Airline’s Rules Before You Pack

Most people assume TSA sets the rules—but your airline may have additional policies that affect what you can bring in your carry-on or checked bags. These often go unnoticed until you’re at the gate or check-in counter.

For example, some international carriers limit aerosol sprays altogether or require medical liquids to be pre-approved. Low-cost airlines like Ryanair or Spirit may allow only one small personal item, meaning your usual toiletry bag might not fit unless you pay for extra carry-on space.

Before your trip, check your airline’s official website for baggage policies. Look under sections like “Restricted Items,” “Carry-on Allowances,” or “Traveling with Special Equipment.” Forums like FlyerTalk can also offer real-time reports from other travelers who’ve flown that route recently.

KEEN TIP: If you’re connecting between different airlines or flying round-trip with different carriers, check the rules for both. Some restrictions apply only during boarding or in-flight, while others affect what you can check through customs.

5.4 Small Packing Strategies That Make Security Easier

You’ve done the prep, gathered your documents, and packed the right items—now it’s time to get through the airport without slowing down. How you organize your bag can determine whether you breeze through the line or hold it up for a manual search.

The smartest travelers place their 3-1-1 bag right on top of their carry-on so it’s easy to pull out. If you’re carrying medical items that need to be declared, keep them in a separate pouch and inform the TSA agent as soon as your bin goes on the belt. Agents are more cooperative when you explain upfront—especially if they see you’re organized and have documentation ready.

For larger items like a CPAP machine, contact lens solution, or medically required gel packs, be ready to remove them for separate screening. Label anything that could raise questions, even if it’s exempt from the 3-1-1 rule.

KEEN TIP: Use flat, clear toiletry organizers instead of overstuffed cubes. These help agents identify items quickly and reduce the chance of triggering a secondary bag check.

KEEN TIP: If you’re ever unsure whether an item is allowed, take a photo and send it to @AskTSA on X. Their responses are fast, and you’ll have an official answer in writing if you’re questioned at the airport.

6. Frequently Asked Questions

6.1 What’s the exact size limit for liquids in carry-on bags?

Each liquid must be in a container no larger than 3.4 ounces (100 milliliters), and all of your liquids must fit inside a single quart-sized, resealable plastic bag. It’s not about how much liquid is left in the bottle—it’s about the size written on the label. A half-empty 6 oz shampoo bottle will be rejected, even if it contains less than 3 oz of product.

KEEN TIP: Check the bottom or side of your container. If the printed size is over 100 ml, it’s not allowed—even if the contents are low.

6.2 Are face creams, masks, or lotions considered liquids?

Yes. TSA considers anything spreadable, smearable, squeezable, or pourable to be a liquid or gel. That includes:

• Face creams and night masks
• Clay masks and peel-offs
• Liquid foundations and BB creams
• Creamy concealers and lip balms

Sheet masks, bar soaps, and powder products are considered solids and are not restricted in carry-ons.

KEEN TIP: When in doubt, put it in your 3-1-1 bag. TSA agents tend to err on the side of caution, and pulling out an item during screening wastes time and could result in it being tossed.

6.3 What about medications in liquid form?

Liquid medications are exempt from the 3.4 oz rule, but you need to follow a few extra steps. The bottle should be labeled with your prescription, and it’s smart to carry a doctor’s note—especially for large or multiple containers.

At the screening area, tell the TSA agent you have medically necessary liquids before your bag goes on the belt. You can ask for a visual inspection if you don’t want the medication X-rayed.

KEEN TIP: Keep these items in a separate, clear pouch—not mixed in with your other liquids. If questioned, having a doctor’s letter will make the conversation go quickly and smoothly.

6.4 Can I bring aerosol sunscreen or dry shampoo in my checked bag?

Yes—but both items have limits. The TSA allows aerosol toiletries in checked bags as long as:

• Each container is 18 oz (500 ml) or less
• The total amount of aerosol products does not exceed 70 oz per person
• The can has a protective cap or nozzle cover

Make sure the label says “for personal care” and that it’s not flammable or labeled for industrial or cleaning use.

KEEN TIP: Pack aerosol cans near soft items like towels or clothing to reduce pressure-related discharge during flight.

6.5 Are makeup wipes or cleansing cloths restricted?

No. Makeup remover wipes, baby wipes, and cleansing cloths are considered solids and can be packed freely in both carry-on and checked luggage. There’s no limit on quantity or packaging.

KEEN TIP: Toss a small pack in your personal item for freshening up during long flights or layovers.

6.6 Can I bring nail polish and remover?

Nail polish is allowed in carry-ons as long as it follows the 3.4 oz limit and fits in your quart-sized bag. Nail polish remover, however, is often prohibited—especially if it contains acetone, which is flammable and considered a hazardous material by many airlines.

If you must bring remover, look for non-acetone wipes instead of liquid.

KEEN TIP: For long trips, consider buying remover at your destination to avoid packing issues.

6.7 What’s the best way to pack toothpaste?

Toothpaste is considered a gel and must follow the 3-1-1 rule if it’s in your carry-on. Travel-size tubes are widely available and usually under 1 oz, making them perfect for short trips.

For longer travel, toothpaste tablets are a solid alternative and don’t count against your liquid limit. You can also pack a full-size tube in your checked luggage if needed.

KEEN TIP: Keep a spare travel tube in both your carry-on and checked bag. That way, if one bag is delayed or confiscated, you won’t be stuck without it.

6.8 Are solid perfumes and balms okay to bring?

Yes. Solid perfume sticks and balm-style fragrances are allowed in any amount in both carry-on and checked bags. However, international customs rules vary. Some countries in the Middle East restrict any product with alcohol, including perfume—liquid or solid.

If you’re traveling to a region with stricter fragrance rules, check their customs website before you pack.

KEEN TIP: Store solid fragrances in a labeled container and keep them separate from food or other strong-scented products, as airport sniffer dogs are sometimes trained to detect alcohol or chemical content.

6.9 What if I have multiple international layovers—do I need to follow each country’s rules?

Yes—and this is where many travelers get tripped up. You must follow the strictest rules for every country on your itinerary, even if you’re only transiting through an airport and not officially entering the country.

For example, if you’re flying from New York to India via London, your bag may be re-screened in the UK, and UK rules will apply. A toiletry that passed TSA may be confiscated in transit.

KEEN TIP: Before your trip, list all countries you’ll pass through—including layovers—and research each airport’s rules. Most major hubs have them posted on their websites.

6.10 How do I protect expensive toiletries when flying?

If you’re packing high-end skincare or luxury toiletries, use a hard-shell toiletry case inside your checked bag and secure each bottle with leak-proofing. You can also:

• Transfer a small amount into a travel-size bottle with a printed label
• Carry documentation (like a receipt or product photo) if the value exceeds $100
• Split items between carry-on and checked luggage in case one is delayed or lost

KEEN TIP: When available, buy the travel kit version of your favorite product. It’s TSA-compliant and often comes with extra packaging to reduce damage in transit.

7. Wrap Up

The rules around flying with toiletries might seem straightforward—until you’re juggling carry-on restrictions, connecting through a different country, or explaining your skin cream to a customs officer who doesn’t speak English.

The good news? With the right packing strategies and just a bit of prep, you can avoid all the usual headaches. From understanding TSA’s 3-1-1 rule to navigating customs requirements in Europe, Asia, and the Middle East, this guide has covered the most critical things you need to know—whether you’re bringing a favorite shampoo or a medically necessary cream.

KEEN TIP: Every trip is a little different, so always check the specific rules for your destination before you fly. Don’t assume what worked last time will apply this time.

If you’re ever unsure about what’s allowed, use the tools available to you:

• Contact your airline or airport
• Ask @AskTSA on X (formerly Twitter)
• Or come back here—I keep this guide updated as regulations change

Safe travels—and pack smart!