Is My Product a Dangerous Good? A 60-Second Checklist for Ecommerce Brands

If a product in your catalog contains batteries, electronics, sprays, alcohol, or many other common materials, there's a real chance it's a regulated dangerous good. If you ship it across a border without the right change to packaging, labeling, and paperwork it can be held, fined, or destroyed at customs.

Here's a fast way to find out before a carrier finds out for you.

The 60-second check

Tick a box if any SKU you sell does this:

☐ Charges or runs on a battery → in-product batteries, Class 9 (earbuds, wearables, cordless tools)

☐ Sprays from a can → aerosol, Class 2 (dry shampoo, deodorant, spray sunscreen)

☐ Contains alcohol or evaporates → flammable liquid, Class 3 (perfume, hand sanitizer, nail polish, essential oils)

☐ Cleans, strips, or corrodes → corrosive, Class 8 (some cleaners, battery fluids)

☐ Bleaches or oxidizes → oxidizer, Class 5 (pool chemicals, some hair products)

If you checked one or more boxes you're shipping dangerous goods. The UN groups them all into nine hazard classes, and every carrier and country rulebook is built on that structure.

Not sure on a specific item? Check the packaging first. A hazard symbol (a flame, a corroding surface, an exploding circle) or a warning like flammable or pressurized container is your first clue that a product is regulated.

Common dangerous goods by category

The obvious items are easy to catch but many everyday products hide a battery or a splash of alcohol that can get shipments held. Whether an item is regulated depends on its formulation, concentration, and quantity, so confirm the specifics per SKU.

Batteries and electronics (Class 9)
Expected: laptops, phones, tablets, wireless earbuds, cordless tools.
Might not expect: light-up sneakers, musical greeting cards, heated jackets and gloves, key finders and item trackers, handheld fans, electric toothbrushes, personal massagers, remote-control toys, and smart rings.

Flammable liquids (Class 3)
Expected: perfume, cologne, hand sanitizer, nail polish, essential oils.
Might not expect: pure vanilla and other baking extracts, cocktail bitters, alcohol-based art markers, nail polish remover, aftershave, alcohol-based toners and setting sprays, reed diffuser oils, and herbal tinctures.

Aerosols and pressurized (Class 2)
Dry shampoo, spray deodorant, spray sunscreen, and hairspray.

Checked a box? Compliant shipping needs five things

• Classification: correct UN number, proper shipping name, hazard class, packing group
• Packaging: UN-certified performance packaging, type-tested for the trip
• Marks and labels: hazard diamonds, UN number, and the lithium battery mark where it applies
• Documentation: a Shipper's Declaration for regulated air shipments plus a current-edition Safety Data Sheet
• Trained people: in the US, anyone handling hazmat paperwork must be trained under 49 CFR 172.704, with a refresher at least every three years

Three things that catch sellers off guard

1. Air is stricter than ground. A product you can send by truck can be restricted or banned by air. The IATA rules, 67th edition, took effect January 1, 2026.
2. Carriers set their own limits. They routinely go stricter than the baseline, and postal channels won't rescue you: USPS does not accept lithium batteries in international mail.
3. The rules reset every year. A shipment that clears in December can be noncompliant in January when a new edition lands.

Clearing your border isn't the same as clearing theirs

Most dangerous-goods advice stops at US rules. Cross-border shipping doesn't. A product that leaves your warehouse compliantly can still be rejected on arrival, because the destination country sets its own import rules and each carrier sets its own limits lane by lane. Compliant at origin and compliant end to end are two different bars, and only the second one gets your product delivered.

Want the full breakdown of the rulebooks, limited-quantity relief, and lithium requirements? Read the complete guide here.

Ship what you've been blocking

If dangerous-goods restrictions are why some of your best products stop at the border, that revenue is recoverable. Inside the FlavorCloud Cross-Border Commerce OS, DG shipping is a governed program. We’ll help you produce carrier-correct labels and documentation at ship time. AI-native and compliance-ready, so international growth compounds instead of stalling on paperwork.

For most brands, international sits at 10 to 20% of revenue when it could be 40 to 60%. Compliance friction is one of the biggest reasons that gap stays open.

FAQ

How do I know if my product is a dangerous good?
Start with a simple test: if it charges, sprays, contains alcohol, corrodes, or oxidizes, it is likely regulated. When in doubt, check the packaging for a hazard symbol or warning word, or the manufacturer's Safety Data Sheet. Common ecommerce examples include perfume, lithium batteries, aerosols, nail polish, and hand sanitizer.

What products surprise people most?
Anything with a hidden battery, like light-up shoes, musical cards, or item trackers, and alcohol-based items like vanilla extract, bitters, and setting sprays. If it powers on or smells like alcohol, check it.

What happens when a customer returns a dangerous good?
Returns follow the same dangerous-goods rules as the original shipment, with one catch: on a return, your customer is the shipper. A shopper in another country usually can't classify the item, package it to spec, or produce a Shipper's Declaration. If you sell regulated products internationally, plan the return path before you launch, not after a customer asks to send something back.

This post is for general information and reflects regulations current as of 2026. Dangerous-goods rules change annually. Always confirm classification and requirements with a qualified specialist and your carrier before shipping.