Shrink Wrap for Cosmetics: Complete Product Protection Solution

Reviewed and updated by ICD - Week 44/2026

Shrink wrap for cosmetics is a heat-shrink plastic film, usually POF (polyolefin) 12-19 microns thick, wrapped around a box or bottle. Through a heat chamber the film shrinks to fit snugly, shields against dust and scratches, and leaves a sign if the box is opened before it reaches the buyer.

This guide explains what shrink film can and cannot do, the three common film types, how to choose thickness by product group, the wrapping process, and the pallet wrapping step that follows and that many workshops skip.

What is shrink wrap for cosmetics?

Shrink film is a thin plastic film that shrinks when heated to fit tightly around packaging. This differs from PE stretch film for pallets, which holds the load by elastic force and needs no heat.

Shrink wrap for cosmetics is usually made from POF, PVC, or PE. The purpose is to form a sealed wrap around a box or bottle: shield against dirt, reduce scratches, and show signs of opening. The film does not replace the packaging that directly holds the product, so it does not lengthen shelf life; that is decided by the formula and the inner packaging.

Heat-shrink film and PE stretch film: two materials, two different steps

According to the standard description of shrink wrap (see References), the film is stretched while hot to orient the molecules, cooled to hold that state, then shrinks back to its original size when reheated with a heat gun or a shrink tunnel on a conveyor. PE stretch film used on pallet wrappers is the opposite: it is stretched as it is wrapped and holds the load by elastic force, with no heat. A cosmetics batch commonly uses both: shrink film for each box, PE stretch film for the whole pallet of cartons.

Benefits of shrink wrap for cosmetics

Shrink film brings three main benefits: it protects packaging from dust and scratches, makes the box look more finished, and shows signs of tampering.

Shrink film under US tamper-resistant packaging rules

The US Food and Drug Administration (FDA) rule 21 CFR 700.25 requires two groups of retail cosmetics to have tamper-resistant packaging: liquid oral hygiene products (such as mouthwash) and vaginal products. The package must have an indicator or barrier that, if broken or missing, gives the buyer immediate visible evidence, and the indicator must be distinctive (by design, or by pattern, name, trademark, logo, or picture) so it is hard to replace after being opened. The retail label must also state that sealing feature.

The example in the text itself is a bottle with a shrink band at the neck, with wording equivalent to “For your protection, this bottle has a printed seal around the neck”. Plain clear shrink film is easily replaced with new film, so for these two product groups a printed film or band is needed. Lipstick, cream, and serum are not required by this provision.

Common shrink film types for cosmetics

The three common shrink films are POF, PVC, and PE; retail cosmetic boxes should prefer POF because it is clear, glossy, shrinks evenly, and gives off no chlorine when heated.

Co-extruded multilayer POF film usually shrinks almost equally in both directions, about 56-62% at 120 °C on manufacturers’ datasheets, so a square box still has flat corners after wrapping. The shrink temperature range differs by film construction and by machine, and published sources differ quite widely: POF alone ranges from 135 to 200 °C depending on the document. So take the temperature and conveyor speed straight from the datasheet of the roll you buy, set a low temperature, then raise it until the film shrinks smooth.

Choosing POF thickness by pack weight

POF is usually sold in four sizes: 12, 15, 19, and 25 microns. One manufacturer’s datasheet ties each size to pack weight: 12 microns for light goods such as cosmetic boxes, discs, and small boxes up to 100 g; 15 microns for 100-500 g; 19 microns for 500 g to 3 kg; 25 microns for 3 kg and above. Applied to cosmetics, the table below shows which size suits which product group.

The thicker the film, the hazier it gets: on one datasheet, haze rises from about 2.1% at 12 microns to 3.8% at 25 microns. For finely printed boxes, choose the thinnest size that still handles the pack weight.

Basic cosmetics shrink wrapping process

Shrink wrapping cosmetics takes 4 steps: place the box in the film, seal and cut, pass it through the heat shrink chamber, and cool; after that the boxes are cartoned and stacked on pallets.

The box is placed in folded film or a pre-made bag, the sealer makes a seal and cuts off the excess, then a conveyor takes the box through the shrink chamber. An operating guide for POF film gives the time in the chamber as about 3-5 seconds, after which the box goes out to cool so the film settles. On cost, thin 12-15 micron material uses little film per box; the bigger investment is in the sealer and the shrink chamber.

Most shrink wrapping faults come from a mismatch between chamber temperature, conveyor speed, and film type:

• Wrinkled, slack film: low heat or the conveyor too fast; raise the heat in small steps or slow down.
• Burnt, holed film: too much heat or the box dwelling too long in the chamber.
• Air pockets under the film: air cannot escape as it shrinks; usually solved with pre-perforated film.
• Open seal: dirty sealing knife or not enough knife heat; PVC leaves more carbon residue on the sealing knife than POF so it needs cleaning more often.
• Warped paper box: film too thick for the rigidity of the box; go down one thickness size.

From cosmetic box to pallet: the second layer of protection in transport

Shrink film protects each box, while the carton and the pallet need their own protection: after cartoning, cosmetics pallets are usually wrapped in PE stretch film before dispatch. The two films differ in material, equipment, and purpose.

At this step, the common equipment is the pallet stretch wrapper (commonly called a shrink wrapper in Vietnamese, but the principle is stretching the film, not heat). The film ICD Vietnam supplies for the pallet wrapping step includes 17 micron hand rolls and 20-30 micron machine rolls.

In Europe, the stability of a load on a pallet is assessed by the EUMOS 40509:2020 method: the load is placed on an acceleration table and subjected to lateral acceleration and deceleration similar to a vehicle accelerating, braking, and cornering, then the elastic and permanent deformation of the load is measured. This standard is in Annex 3 of Directive 2014/47/EU on roadside technical inspection of commercial vehicles. The practical meaning: the security of a film-wrapped load is measured by testing, not just by hand feel.

A pallet wrapper stretches the film before wrapping so it uses less film while the holding force stays even.

Frequently asked questions

How do POF and PVC shrink film differ?

POF contains no chlorine so it gives off no hydrogen chloride when heated, has stronger seals that are more stable in storage, but costs more. PVC is cheap and shrinks at low temperature, but can release hydrogen chloride so it needs ventilation, and PVC’s plasticizer hardens when cold. Retail cosmetic boxes should prefer POF; PVC suits only low-cost non-food goods or bottle neck bands.

How many microns thick should shrink film for cosmetics be?

Small, light cosmetic boxes usually use 12-15 micron POF (datasheets suggest 12 microns for packs up to 100 g, 15 microns for 100-500 g). Multi-item gift sets or glass bottles use 19 microns; 25 microns is for bundles and heavy packs. Thicker film needs higher heat or a slower conveyor.

What machine shrink wraps cosmetic boxes?

Small batches use pre-made film bags and a hand-held heat gun. Medium output uses an L-bar sealer combined with a conveyor shrink chamber. Lines running one product code continuously use an automatic side sealer feeding a shrink chamber. ICD Vietnam does not sell sealers or heat shrink chambers; ICD’s product groups are PE stretch wrappers and pallet wrapping film.

Can shrink film replace PE film for pallet wrapping?

It should not. Heat-shrink film is for each box or each bundle. To hold a whole pallet of cartons in transport, a warehouse uses PE stretch film wrapped by hand or with a pallet wrapper, needing no heat and giving a more even holding force.

Do cosmetics exported to the US require tamper-resistant packaging?

Under 21 CFR 700.25, it is required for liquid oral hygiene products and vaginal products sold at retail; the package must have a distinctive sealing feature and the label must state it. Other cosmetic groups are not required by this provision.

Contact ICD Vietnam

References

Related articles