How to Pack Toiletries According to TSA and Airline Rules

Learn how to pack toiletries according to TSA and U.S. airline rules without hassle. Say goodbye to security delays with this smart packing guide for all travelers.

Wait—Can I Bring That Shampoo? Let’s Talk TSA Rules

If you’ve ever stood in a security line watching someone’s toothpaste get tossed into the bin, you’ve probably wondered: What exactly are the TSA’s rules for toiletries? Good question. Whether you’re a frequent flyer or just planning your first trip, knowing how to pack your toiletries the TSA-approved way can save you time, stress, and even a few bucks.

So let’s break it all down—from what counts as a liquid to how to dodge those pesky travel-size mishaps.

The 3-1-1 Rule: TSA’s Golden Standard

Here’s the basic guideline you’ll need to memorize:

3-1-1 Rule for Carry-Ons

• 3.4 ounces (100 milliliters) or less per container
• 1 quart-sized, clear plastic, zip-top bag
• 1 bag per passenger

That’s it. Everything you want to bring—shampoo, toothpaste, face wash, perfume—must fit into one single bag and each item can’t be more than 3.4 oz.

And no, you can’t sneak in a 5 oz. bottle “because it’s almost empty.” TSA agents have heard it all, and they won’t budge.

Liquids, Gels, Aerosols, Oh My!

Let’s clarify what’s actually considered a liquid under TSA’s eyes. It’s not just obvious liquids like body wash or toner. Here’s a list of what counts:

Yes, These Count as Liquids:

• Shampoo and conditioner
• Lotion and moisturizer
• Sunscreen (cream or spray)
• Toothpaste
• Mouthwash
• Perfume/cologne
• Gel deodorant
• Liquid makeup (foundation, BB cream, etc.)
• Hair gel, pomade, and wax
• Liquid soap

These Don’t Count as Liquids:

• Bar soap
• Solid deodorant
• Makeup wipes
• Powder foundation
• Lip balm

Carry-On vs. Checked Baggage: What’s the Difference?

Here’s where it gets easier: when you check your luggage, there’s no 3-1-1 rule. You can bring full-size bottles, big aerosol cans, and as much body wash as you want—within reason.

But keep in mind:

• Checked bags are subject to pressure changes, which can cause bottles to leak.
• Always use leak-proof travel bottles or wrap caps with tape for extra safety.
• Some items like aerosol spray cans may still have restrictions (e.g., flammable products).

Packing Tips for TSA-Friendly Toiletries

If you’re going carry-on only (which more and more travelers prefer), mastering the art of compact, efficient toiletry packing is key.

Top Tips:

• Use reusable travel-size containers and label them
• Choose multi-use products (e.g., shampoo + conditioner combos)
• Opt for solid alternatives like shampoo bars, stick deodorant, and toothpaste tabs
• Pack your liquids bag in an easily accessible pocket
• Pre-pack your 3-1-1 bag before arriving at the airport—don’t wait until security

Toiletries You Can’t Bring (and What to Do Instead)

There are certain toiletries that, no matter how small, still might cause problems.

Common Problem Items:

• Razors with removable blades (cartridge-style are okay, straight razors are not)
• Aerosol dry shampoo (must be under 3.4 oz and non-flammable)
• Nail polish remover (if it contains acetone)
• Perfume bottles over the 3.4 oz limit

Smart Alternatives:

• Buy after security or at your destination
• Use travel-size solid versions
• Ship full-size items to your hotel via online retailers

Table: Quick Reference for Toiletry Rules

Common Mistakes to Avoid

You don’t want to be that person holding up the TSA line. Avoid these rookie mistakes:

• Packing full-size liquids in a carry-on
• Using containers without labels (agents may toss them if they’re unsure)
• Forgetting that aerosols are liquids too
• Leaving your liquids deep in your bag (they need to be scanned separately)
• Assuming TSA PreCheck exempts you from liquid rules—it doesn’t!

What About International Travel?

While TSA guidelines apply to U.S. airports, most countries have similar rules. However, always double-check local airport and airline policies if you’re flying abroad—especially in countries with stricter regulations.

And if you’re connecting flights internationally, remember that what was allowed on your first flight might not pass in your layover country.

TSA PreCheck & CLEAR: Do They Change the Rules?

Not really. TSA PreCheck speeds up the process, and you don’t need to remove liquids from your bag. But the 3-1-1 rule still applies—you just don’t have to take the baggie out.

CLEAR, meanwhile, helps with identity verification but doesn’t alter screening rules for toiletries.

FAQs

Can I bring two quart-size bags? Nope. Only one bag per person. Overpacking it? TSA may ask you to remove items.

Do I have to remove the liquids bag from my carry-on? Yes—unless you’re using TSA PreCheck.

Can I use a gallon-size bag instead? No. It must be a quart-size, zip-top plastic bag. Bigger bags may be rejected.

What happens if I accidentally pack a full-size shampoo in my carry-on? TSA will confiscate it, no exceptions.

Are baby products like formula and diaper cream allowed? Yes. TSA makes exceptions for essential items like baby formula, breast milk, and medications—but declare them at screening.

Can I bring full-size toiletries in my checked bag?

Yes, full-size toiletries are allowed in checked baggage without the 3.4 oz limit. That said, a few important things to keep in mind:

• Avoid glass containers – They can break under pressure.
• Use leak-proof bottles – Especially for products like shampoo and lotion.
• Place items in a sealed toiletry bag or plastic zip bag to prevent spills.
• Some items are still restricted, like flammable aerosols or corrosive chemicals (e.g. acetone nail polish remover).

Comparison Table: Common Full-Size Toiletries in Checked Luggage

Bottom line: as long as you’re checking your bag, you’re free to pack large toiletry bottles—just secure them well to avoid a soapy mess on your clothes.

Can I bring prescription creams or ointments in my carry-on?

Yes, prescription creams and ointments are allowed in carry-on bags without adhering to the 3.4 oz rule, but you must follow these steps:

• Keep the item in original labeled packaging.
• Declare it at the TSA checkpoint.
• While it’s not required, carrying a copy of the prescription can speed things up.
• There is no need to place it inside your quart-sized bag.

Helpful Tips:

• Pack prescription creams separately for quick access.
• Store them with your medications to streamline the declaration.
• For over-the-counter creams, the 3.4 oz limit still applies.

TSA allows medical exceptions, but you must be upfront at the checkpoint—don’t hide the item or skip the declaration.

Can I bring essential oils on a plane?

Essential oils are considered liquids and must follow the 3-1-1 rule if carried on. That means:

• Each bottle must be 3.4 oz or less.
• All oils must fit into your quart-size plastic bag.

Best Practices:

• Use leak-proof glass roller bottles or dropper containers.
• Label each oil, especially blends, for easier screening.
• Keep oils tightly sealed; even a small leak can ruin clothes.

If you’re traveling with a diffuser or larger essential oil kits, it’s best to pack them in your checked luggage.

Comparison of Common Essential Oils in Carry-On Bags

Can I bring a toiletry bag instead of a zip-top plastic bag?

You can bring a toiletry bag, but for TSA screening of liquids, it must meet the following:

• Transparent and quart-sized
• Zip-top or clear closure
• All liquid items inside must follow the 3.4 oz rule

Many reusable toiletry bags are TSA-compliant as long as they’re see-through and size-appropriate.

What to Look For in a TSA-Approved Toiletry Bag:

• Clear PVC or silicone material
• Approximate size: 6″ x 9″
• Easy-open zip or zipper
• Durable stitching to avoid splits

Avoid:

• Opaque fabric or leather toiletry bags
• Bags larger than quart-size

Are shaving razors allowed in a carry-on bag?

Yes, but only disposable or cartridge razors are allowed in carry-ons. Straight razors or razor blades must be packed in checked luggage.

Allowed in Carry-On:

• Disposable razors (Bic-style)
• Cartridge razors (e.g. Gillette, Venus)

Not Allowed in Carry-On:

• Safety razors with removable blades
• Straight razors or open-blade razors

Tips:

• Store razors in a protective case or cap
• If you’re unsure about a razor’s type, it’s safer to check it

Can I bring a travel-size hair straightener or curling iron in my carry-on?

Yes, cordless battery-operated or plug-in curling irons and straighteners are generally allowed in carry-ons. However:

• Gas-powered hair tools (butane) must follow FAA regulations and cannot be checked—they’re only allowed in carry-ons with the safety cover on and one cartridge only.

Comparison Table: Hair Tools & Carry-On Rules

How should I pack toiletries to avoid leaks in checked bags?

Checked bags experience pressure changes, jostling, and rough handling—so leakage is a real risk.

Tips to Avoid Leaks:

• Use travel-size, screw-cap bottles with tight lids
• Place toiletries in a sealable plastic pouch
• Wrap caps with plastic wrap or tape
• Store upright when possible

Helpful Gear:

• Silicone travel bottles with anti-leak valves
• Leak-proof zip bags (e.g., Pack-It or Ziploc XXL)
• TSA-approved toiletry cubes with waterproof lining

Can I bring perfume or cologne in my carry-on?

Yes, but only in containers 3.4 oz or smaller, and it must go in your quart-size bag.

Important: Strong scents may disturb other passengers, so apply sparingly or wait until landing.

Travel-Friendly Perfume Options:

• Rollerballs (0.3 oz – ideal for carry-ons)
• Perfume atomizers
• Solid perfume sticks

Price Comparison: Travel-Size Perfumes

Are there restrictions for packing mouthwash or contact lens solution?

Yes, both are considered liquids.

Carry-On Rules:

• Must be 3.4 oz or less
• Must be in the quart-size bag

Checked Luggage:

• No volume limit

Tip: Many brands offer TSA-friendly sizes for both products. Always close the lids tightly and place them in a separate leak-proof bag.

Can I bring aerosol deodorant or hairspray in my carry-on?

Yes, but it must meet TSA’s 3-1-1 rule:

• 3.4 oz max
• Must fit in quart-size plastic bag
• Must be non-flammable (check label)

Examples of TSA-Approved Aerosols:

• Dove Go Fresh Deodorant Spray (3 oz)
• Batiste Dry Shampoo Mini (1.6 oz)
• Secret Dry Spray Deodorant (3.2 oz)

Reminder: Flammable symbols = red flag. Stick to personal care sprays labeled TSA-safe.

Final Words: Fly Light, Pack Right

Packing toiletries for air travel doesn’t have to be a hassle. With a bit of prep, smart product choices, and knowledge of TSA rules, you can breeze through security like a pro. Choose solids where you can, label your containers, and keep that 3-1-1 bag ready to roll.