UN Dangerous Goods Certification for Cosmetic Bottles: Shipping Alcohol-Based Perfumes, Toners and Sanitizers

Any cosmetic over 24 percent alcohol by volume with a flash point below 60 deg C is Class 3 dangerous goods. The bottle, cap, liner and seal must pass a UN drop test, a pressure test and a leak test, and ship with a UN-certified pack. The rules come from the UN Model Regulations and apply across IATA (air) and IMDG (sea).

Most cosmetic bottles ship as general cargo. A fragrance, an alcohol-based toner, a hand sanitizer or a setting spray can be different. If the formula exceeds 24 percent alcohol by volume and its flash point is below 60 deg C closed-cup, regulators treat it as a flammable liquid. Air carriers classify it as IATA Dangerous Goods Class 3. Ocean carriers classify it under IMDG Class 3. The packing must carry a UN number, a packing group, and pass UN certification. None of this is brand marketing. It is freight law, and the cost of getting it wrong is a refused cargo at the airport.

When a Cosmetic Becomes Dangerous Goods

The line between general cargo and dangerous goods is a number, not a judgement. The number is closed-cup flash point, measured with a Pensky-Martens or Abel apparatus, and reported in degrees Celsius. Below 23 deg C the product is packing group I. Between 23 and 60 deg C it is packing group II. Above 60 deg C it is packing group III, and above 100 deg C it is no longer regulated as flammable.

The second number is alcohol by volume. Most regulators and most airlines use 24 percent ABV as the threshold for cosmetics. A 50 percent alcohol toner is well above the line. A 70 percent ethanol hand sanitizer is above the line. A 12 percent alcohol mist is below the line and ships as general cargo.

Get the flash point and the ABV wrong on a Safety Data Sheet and the freight forwarder will refuse the cargo at the airport, or worse, accept it and face a fine. Always send the lab-tested flash point with the first inquiry, and tell the supplier it is DG-rated so they spec the right pack. Our air vs sea freight guide sets the broader shipping frame.

UN Numbers and Packing Groups

Every dangerous goods shipment carries a four-digit UN number on the carton, the air waybill and the MSDS. For alcohol-based cosmetics the common numbers are UN 1170 (ethanol or ethanol solution), UN 1266 (perfumery products), UN 1987 (alcohols, not otherwise specified) and UN 1993 (flammable liquids, not otherwise specified). The right number depends on the exact formula, not the marketing name.

The UN number is paired with a packing group: PG I for the most dangerous (flash below 23 deg C), PG II for the middle band, PG III for the least dangerous (flash 23-60 deg C). A 70 percent ethanol sanitizer is usually PG II. A 35 percent alcohol toner is usually PG III. The packing group dictates the drop test height the pack must survive.

The packaging itself carries a UN certification mark, a stamped or printed code that reads 'UN 1G/Y34/S/25/USA/AG1234'. The 1G means fibreboard box, Y means packing group II or III, 34 is the maximum gross mass in kg, S is solid, and the rest identifies the manufacturer and year. A pack without this mark cannot ship DG, no matter what the MSDS says. Our HS codes and customs guide covers the import paperwork that follows.

What IATA Demands for Air Freight

IATA Dangerous Goods Regulations (DGR) is the airline industry's bible. Section II of the relevant packing instruction lets you ship flammable liquids under 'Limited Quantity' with PI 309 or PI 341, capped at 5 L per inner packaging and 30 kg gross per package. The carton shows the Limited Quantity mark (a diamond with the Class 3 symbol and 'Y'). No pilot's declaration is needed for Limited Quantity, which is why most alcohol-based cosmetics use this route.

Above the Limited Quantity cap the pack must meet full PI 353. The inner pack must pass a 1.2 m drop test for PG II or 1.8 m for PG I, and the closure must hold liquid through the drop. The cap must also pass a hydraulic pressure differential of at least 100 kPa for 30 minutes without leak. The shipper signs a Shipper's Declaration for Dangerous Goods (DGD) and the airline accepts the cargo.

Air is fast and air is expensive, but air is also where the rules bite hardest. A refused shipment in Frankfurt or Los Angeles can cost ten thousand dollars plus the cargo. Confirm with the forwarder whether the SKU is Limited Quantity or full PI before the PO. Our air vs sea guide weighs the cost trade-off.

What IMDG Demands for Sea Freight

The International Maritime Dangerous Goods Code (IMDG) governs ocean freight. Sea is more permissive than air. Limited Quantity under P001 lets a single inner pack carry up to 5 L, and the carton shows the same Limited Quantity diamond. Segregation rules are lighter than for air, and the documentation is the same MSDS plus a Dangerous Goods Declaration.

Sea is slower, but for a 20 or 40 foot container of alcohol-based cosmetics, sea is where the math works. A 40 foot container can carry roughly 18,000 L of Limited Quantity flammable liquids, packed in cartons that pass the same 1.2 m drop test the pack passed for IATA. The container itself carries the Class 3 placard on all four sides.

The watch-out is segregation: oxidizing agents and Class 1 explosives cannot share a container with Class 3 liquids. Most cosmetic-only shipments do not hit segregation, but mixed containers do. Tell the freight forwarder the exact UN number and packing group and they will plan the bay. Our Incoterms and payment guide sets the contract frame the freight sits inside.

How the Bottle Has to Be Built

The bottle is part of the UN pack, not a separate item. A 1.2 m drop onto a hard surface, with the closure in place, must not leak. PET and HDPE both pass when the wall is right and the closure torque is set. PETG passes with a tighter tolerance on the neck finish. Glass passes when the bottle is coated and the pack includes a plastic overwrap. The bottle alone cannot carry the UN mark. The pack (bottle, closure, liner, bag, carton) is what carries the mark.

Closures matter most. A standard screw cap without a liner will leak under pressure differential. The standard UN closures are: a wad with induction seal, a pump with metal collar lock, or a crimped neck finish with an aluminium seal. Each has a tested variant. The supplier has to show the test report on request.

Wall thickness and the neck finish also matter. A 24/410 neck on a thin-walled 30 ml PET bottle will not pass PG II drop. A 28/400 neck on a 100 ml HDPE bottle with a wad and induction seal usually does. Ask for the UN test report before the PO, not after the leak in the carton. Our neck finish guide and closure and seal guide cover the detail.

How to Put It All on the Purchase Order

A DG-rated purchase order has to name more than the SKU. It must state: the alcohol percentage by volume, the closed-cup flash point in degrees Celsius, the UN number, the packing group, the test standard (UN drop, UN pressure, UN stack), and the required shipping mode (IATA / IMDG / ADR for road). A PO that only says 'PET 50 ml, alcohol-based' will not pass the freight audit.

Require the UN test report with the golden sample. A supplier that has shipped DG-rated alcohol cosmetics before will have the report on file and can issue it in days. A supplier that has not will need a lab cycle, and that is a four to six week delay. Pick the supplier who has done it before.

At ShiJin we mold PET, HDPE and PETG from our 1,000+ open mold library, with MOQ from 5,000 units and 15-25 day lead times. For alcohol-rated SKUs we supply UN drop and pressure test reports on request, spec the right closure and seal for the UN number and packing group, and ship the goods with the documentation the forwarder needs to clear the freight. Send us the formula, the ABV and the flash point, and we will quote the bottle and the pack to match.

Frequently Asked Questions