How to Pack Toiletries in a Carry-On (Without Getting Anything Confiscated)

You made it through security, but your favorite face wash did not.

It was 4 ounces, which looked small enough.

But the TSA limit is 3.4 ounces, and there is no negotiation at the checkpoint.

Now you are at your destination without the one product your skin actually needs, and the hotel mini bottle is not going to cut it.

The liquid rule is strict, the quart bag is small, and the items you use every day at home do not fit the way you expect.

But the system is simpler than it seems once you know what counts as a liquid, what does not, and how to organize the bag so nothing gets pulled.

Pack your toiletries with the 3-1-1 rule in mind, and nothing gets confiscated. The sections below cover what counts as a liquid, how to organize the quart bag, and which products you can swap for solid alternatives to save space.

The TSA 3-1-1 Rule (Quick Version)

3.4 ounces (100 ml): The maximum size for any single liquid, gel, or aerosol container.

1 quart bag: All your liquid containers must fit inside one clear, zip-top, quart-sized bag.

A standard zip-top sandwich bag works.

1 bag per person: Each traveler gets one quart bag.

The rule applies to the container size, not how much product is inside.

A half-empty 6-ounce bottle will be confiscated even though it only holds 3 ounces of product.

The container itself must be 3.4 ounces or smaller.

The TSA travel checklist is a good final reference before you pack.

For the full liquid rules breakdown, see TSA liquid rules for carry-on.

The Travel Coaches break down TSA carry-on and liquid rules for toiletries:

How to Pack Toiletries⎜TSA Carry-On and Liquid Rules

What Counts as a Liquid (and What Does Not)

More things count as liquids than most people expect.

The TSA treats anything that can spill, spread, spray, or pour as a liquid.

Counts as a liquid (goes in the quart bag):

• Shampoo and conditioner
• Body wash and face wash
• Lotion and moisturizer
• Toothpaste
• Mouthwash
• Liquid foundation and concealer
• Mascara
• Gel deodorant
• Contact lens solution
• Sunscreen (liquid or spray)
• Hair gel, mousse, and spray
• Lip gloss
• Perfume and cologne

Does NOT count as a liquid (no size limit, no quart bag needed):

• Solid deodorant (stick form)
• Bar soap
• Shampoo bars and conditioner bars
• Powder makeup (eyeshadow, blush, setting powder)
• Lip balm (solid stick)
• Solid perfume
• Razor (disposable or electric)
• Toothbrush
• Hair ties and bobby pins
• Cotton swabs and cotton pads
• Dental floss
• Nail clippers
• Tweezers

Exempt from the 3-1-1 rule (declare to the agent):

• Prescription medications in any amount
• Baby formula and breast milk
• Medically necessary liquids (insulin, gel ice packs for medical supplies)

Declare exempt items to the TSA agent before screening.

They may test them separately, but they will not take them.

How to Organize the Quart Bag

A standard quart zip-top bag is roughly 7 x 8 inches.

That is not much space, but it holds a full week’s worth of toiletries if you pack it strategically.

Step 1: Choose your must-haves. Most people need 6 to 8 liquid items for a trip.

A typical quart bag holds 8 to 10 travel-size containers if they are the standard 3-ounce tubes.

A practical set for most travelers:

• Face wash (travel size)
• Moisturizer (travel size)
• Toothpaste (travel size)
• Shampoo (travel size or solid bar)
• Conditioner (travel size or solid bar)
• Sunscreen (travel size)
• Deodorant (solid stick, so it stays out of the quart bag)

Step 2: Use flat containers, not round bottles. Flat tubes and squeezable pouches pack tighter than rigid round bottles.

Silicone travel bottles are squeezable, leak-resistant, and take up less space than hard plastic.

Step 3: Fill from the bottom, largest to smallest. Place your largest containers flat at the bottom of the bag, then layer smaller ones on top.

This prevents wasted space between bottles.

Step 4: Squeeze the air out before sealing. Removing air from the bag lets it lie flatter in your carry-on and prevents containers from shifting.

Solid Alternatives That Skip the Liquid Rule

Solid toiletries do not count as liquids.

They do not go in the quart bag, they have no size restriction, and they never get confiscated.

Switching even two or three products to solid alternatives frees up significant space in your quart bag for the liquids you cannot replace.

Shampoo bars: Lather just like liquid shampoo. One bar lasts 2 to 3 weeks of daily use.

Place it in a soap container or a small zip-top bag to keep it from getting your other items wet.

Conditioner bars: Work the same way as shampoo bars.

Rub through wet hair, let it sit for a minute, rinse.

Takes one or two uses to find the right amount for your hair.

Solid deodorant: Stick deodorant is not a liquid. It stays out of your quart bag entirely.

If you currently use gel or spray deodorant, switching to a solid stick for travel frees up one container slot.

Bar soap: A small bar of soap replaces body wash.

Wrap it in a washcloth and place it in a zip-top bag.

Solid perfume: Small tins of solid perfume weigh almost nothing and last weeks.

Not every brand offers solid versions, but the ones that do are perfect for travel.

What to Bring vs. What to Buy at Your Destination

Not everything needs to come from home. Some items are cheaper and easier to buy when you arrive.

Bring from home (hard to replace or personal preference):

• Prescription medications (never check these, always carry on)
• Your specific face wash and moisturizer (if your skin reacts to new products)
• Contact lens solution (specific brand matters)
• Sunscreen you trust (SPF preference, skin sensitivity)
• Any product where the brand matters to you

Buy at your destination (cheap and universal):

• Shampoo and conditioner (every hotel provides these, and every drugstore sells them)
• Body wash or bar soap
• Toothpaste (travel sizes available everywhere)
• Razors
• Cotton swabs
• Hair spray or styling products

The rule of thumb: If switching brands would bother you or cause a problem (skin reaction, medication), bring it.

If any version of the product works fine, buy it there and save the quart bag space.

Medication Rules

Medications follow different rules than regular toiletries.

Prescription medications (liquid or solid): Exempt from the 3-1-1 rule.

You can bring any amount in your carry-on.

The TSA recommends keeping them in their original prescription bottles with your name on the label, but it is not required by TSA. Some international destinations may require original packaging, so check if you are flying abroad.

Over-the-counter medications: Pills, capsules, and tablets have no liquid restriction.

Bring as many as you need.

Liquid OTC medications (cough syrup, liquid ibuprofen) follow the 3-1-1 rule unless you have a medical need for a larger quantity, in which case declare it at screening.

Medical devices and supplies: Insulin, syringes, gel ice packs for medication, and other medically necessary items are exempt.

Declare them to the TSA agent before screening.

According to TSA’s guidance on medications, you should inform the officer at the start of the screening process.

Keep medications in your personal item, not your checked bag. If your checked bag is lost or delayed, you do not want your medication on a different plane.

Preventing Leaks

Nothing ruins a carry-on faster than a shampoo bottle that opened during the flight.

Cabin pressure changes can cause containers to leak, especially if they are not sealed tightly.

Wrap each container in plastic wrap or a small zip-top bag. Even a single layer of plastic wrap over the opening (under the cap) prevents most leaks.

Do not fill containers to the top. Leave a small air gap.

When cabin pressure drops, the air inside the container expands.

If the container is full, the pressure pushes liquid out.

A small gap gives the air room to expand without forcing the lid open.

Use containers with screw caps, not flip tops. Flip-top lids pop open under pressure more easily than screw caps.

Place the quart bag in an accessible pocket. If something does leak, you want to catch it before it soaks through your clothes.

Keeping the quart bag in an outside pocket of your carry-on also makes security faster because you can pull it out without unpacking.

A walkthrough of toiletry packing techniques that save space in carry-on bags:

How to Pack Toiletries to Save Space in Carry-On Bags

For the complete carry-on packing system, see the carry-on only packing guide.

Not sure if your bag fits airline size limits? Check it free with our luggage calculator.

Pin this page for the next time you are standing in the bathroom the night before a flight, staring at a quart bag and wondering what fits.