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Can I Carry It? — verified carry-on guide

Can You Bring Shampoo on a Plane?

Category: Toiletries & Personal Care

Direct Answer (2026 Official Rules)
Cabin: ⚠ LIMITED Hold: ✓ YES

Yes, with limits — you can bring shampoo & conditioner in carry-on bags provided you follow security limits. Cabin: each bottle ≤ 3.4 oz (100 ml), all in one quart bag.

Verified against published 2026 TSA (United States) & CATSA (Canada) security screening databases.

On this page · 9 sections

⚖️ Why This Rule Exists: International 3-1-1 Liquid Security Rules & Container Geometry

Containers with a marked capacity of 100 ml (3.4 oz) or less that fit within a single clear, resealable 1-quart (1-liter) plastic bag are permitted through screening because small volumes can be rapidly inspected and present limited hazard potential.

Decision Threshold: 100 ml (3.4 oz) or smaller container + 1 clear quart bag per passenger.

Rules by security authority

United States — TSA

Carry-on

Restricted

Yes — bottles of 3.4 oz (100 ml) or less in your quart-size liquids bag.

Checked bag

Yes

Yes — any size. Aerosol cans count toward the FAA’s 70 oz (2 L) toiletry total.

Rule conditions: Cabin: each bottle ≤ 3.4 oz (100 ml), all in one quart bagShampoo bars: solid, unlimitedDry shampoo aerosol: same ≤3.4 oz cabin ruleChecked bags: FAA caps aerosols at 18 oz each / 70 oz (2 L) total

Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.

🔍 Security Checkpoint & X-Ray Screening Advice

Place your clear 1-quart bag in the screening bin outside your luggage in 2D X-ray lanes. In 3D CT scanner lanes, keep it inside your bag unless instructed otherwise by the screening officer.

Learn more about scanner differences and traveler rights in our Airport Security Screening Guide →

⚠️ Common Traveler Mistake to Avoid

The Mistake: Carrying multiple quart bags per traveler or forgetting that pastes and gels (toothpaste, hair gel, lip gloss) count as liquids.

How to Avoid It: Consolidate all toiletries into one quart bag per traveler or transition to solid alternatives (shampoo bars, solid deodorant).

💧 3-1-1 liquids rule checker

One quart-size (≈1 L) bag per passenger; every container must be 3.4 oz (100 ml) or less.

Fit is approximate — container shape decides real-world packing. Medically necessary liquids and infant food are exempt: declare them. Packing a whole bag? Plan it container by container →

How to Pack Shampoo & Conditioner for a Flight

Full-size bottles are the #1 toiletry confiscation at security. Buy after the checkpoint, decant into 100 ml travel bottles, or switch to solid bars. Aerosol dry shampoo is a liquid AND an aerosol — small can in the cabin, and it eats from your FAA aerosol allowance in checked bags.

Shampoo & Conditioner on a plane — FAQs

Can you bring Shampoo in a carry-on?

Yes — bottles of 3.4 oz (100 ml) or less in your quart-size liquids bag.

Can you pack Shampoo in checked luggage?

Yes — any size. Aerosol cans count toward the FAA’s 70 oz (2 L) toiletry total.

Why are there rules for shampoo on a plane?

Containers with a marked capacity of 100 ml (3.4 oz) or less that fit within a single clear, resealable 1-quart (1-liter) plastic bag are permitted through screening because small volumes can be rapidly inspected and present limited hazard potential.

Last verified:

Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →