EVA, moulded pulp or paper insert for a cosmetic gift set:
protection, cost and sustainability.

What an insert has to do

Three jobs, in order: hold each product so it does not move in transit; present it so it lifts out with one hand; and not react with the product's decoration over months on a shelf. The measurable standard for the first two is written into the set specification — gap between insert and product ≤1 mm, no rattle, products removable with one hand, and the assembled set survives a 60 cm edge drop with no product movement or corner damage (ISTA 3A sequence for e-commerce sets). The third is a 48°C / 30-day contact hold of the insert material against the decorated pack, watching for colour or plasticiser transfer onto sprayed or soft-touch surfaces.

One rule sits above all four insert types: the insert is cut only after the primary packs are confirmed and approved, never in parallel. A bottle that changes by half a millimetre in the final drawing turns a finished insert run into scrap. The same rule governs the rigid box itself — see gift set packaging.

The four options compared

All minimums are indicative and confirmed per project; the box they sit inside has its own floor of about 500–1,000 via partner factories tooled for small runs (industry 2,000–5,000) — see the rigid gift box MOQ guide.

Die-cut EVA foam

EVA (ethylene-vinyl acetate) is a closed-cell foam whose softness rises with its vinyl-acetate content — typically 4–30% VA, more VA meaning softer and more transparent — with a melting point around 65°C, which is why it is cut, not moulded. A cutting die punches the cavities; layers are laminated where the set needs depth. It is the format that meets the ≤1 mm standard most easily on heavy glass, because the foam compresses slightly and grips.

• Protection: the best of the four. It is the default for perfume flacons, glass jars and mixed-weight sets.
• Cost and tooling: a cutting die only, so the working minimum is about 500. Black and white foam are stock; a colour-matched foam is a set-up and a small extra minimum.
• Sustainability: not paper-recyclable, and it makes an otherwise mono-material paper box a mixed pack. If the box carries an FSC or recyclability message, the EVA insert is the line the consumer will notice.
• Compatibility: run the 48°C / 30-day hold against sprayed or soft-touch bottles. Foam colour or plasticiser can transfer onto a decorated pack over months.

Moulded paper pulp

Pulp inserts are formed wet on a mould from recycled or virgin fibre and dried, so they are wholly paper and recycle with the box. The trade is precision. Pulp shrinks as it dries and the surface is textured, so the cavity is designed with 1–2 mm clearance rather than the ≤1 mm an EVA cavity can hold — which is fine for a 50 ml jar and a problem for a heavy glass bottle that can rock. The working rule from partner factories: pulp for pieces under about 300 g; above that, EVA or a pulp-plus-card platform.

• Protection: good for light and medium components; the cavity can crush under heavy glass.
• Cost and tooling: a pulp mould is a one-off and the typical minimum is 1,000–2,000, so it is rarely the right call under 1,000 sets.
• Sustainability: the cleanest story — one material, one recycling stream, and it reads as eco on opening. Pair it with FSC-certified board and soy-based inks, with the chain-of-custody certificate on file; an FSC claim without the CoC certificate is invalid.
• Finish: natural grey or brown by default; white pulp costs more and is less consistent lot to lot.

Thermoformed and flocked trays

A thermoformed PET or PS tray is a thin plastic sheet (typically 0.14–5 mm) heated and vacuum-drawn over a tool. It gives crisp, uniform cavities and a clean look for travel kits and small components, from a modest one-off tool at a ~1,000–2,000 minimum. Flocking — short fibres driven electrostatically at 20–100 kV onto an adhesive-coated tray and dried above 100°C — turns the same tray into the velvet cavity of a prestige fragrance set. Cut-fibre grades and dust control decide whether the finish looks luxury or fuzzy; approve it on a physical sample. Both are plastic, so they carry the same recycling caveat as EVA.

Die-cut card platform

A folded paperboard platform with die-cut holes is the cheapest insert there is: a cutting die, about 500 minimum, ships flat, recycles with the box. It holds sachets, tubes and light plastic well and holds glass badly — a bottle sitting in a card hole rocks in transit and can crack a neighbour. Use it for sample sets and starter kits; use it under a pulp or EVA tray as a structural platform; do not use it alone for glass.

Which one, by what is in the set

The tests the insert is signed against

Whatever the material, the pre-production sample is assembled with the approved products and checked: no rattle; gap ≤1 mm (1–2 mm designed clearance for pulp); each piece removable with one hand; lid engages within 2 mm of flush over the loaded insert; 60 cm edge drop with no movement; and a 48°C / 30-day contact hold against the decorated packs. Colour of a dyed foam or flocked tray is approved under D65 light alongside the wrap and the bottles — a 2 ΔE drift across components is visible in one hand. The gates and thresholds are on the QC standards.

Then the set ships in a double-wall 6–8 mm outer, glass in suspended trays rated ≥200 kg to ISTA 3A, against a breakage target of ≤0.3% — the insert protects the product inside the retail box; the outer protects the box. Details on export packing and transit standards. The sustainability arithmetic for the whole set — FSC board, pulp, PCR primary packs — is on the sustainable and refill packaging solution, and the questions to ask any supplier on how to evaluate a China packaging supplier.

Common questions