Custom Peptide Shipping Boxes

What we supply, and what we do not

This distinction matters more on this page than anywhere else on the site, so it is worth stating plainly before anything else.

• We supply — Corrugated outer cartons, insulated mailers, thermal liners, dividers and partitions, gel-pack cavities, tamper-evident sealing options and printed handling markings.
• We do not supply — Coolant, refrigerants, temperature monitors, or any product that goes inside the box.
• We do not certify — Any temperature range, hold time or cold-chain duration. We do not issue transit test certification.
• You are responsible for — Validating the complete packed configuration for your product, your required temperature range, your duration, your route and your season.

We will make samples of any configuration you want to test, and we will change the specification based on what your testing shows. That is a genuinely useful loop, and it is more valuable than a number we could not stand behind.

Insulated mailer options

An insulated mailer is a corrugated shell with an insulating liner bonded or fitted inside it. The liner material is the main variable.

• Expanded polystyrene (EPS) liner — The traditional option. Effective as an insulator, bulky, and difficult to recycle in most areas.
• Polyurethane (PU) panel liner — Thinner than EPS for a similar insulating effect, so more internal space for the same outer size.
• Paper-based insulated liner — A moulded or padded paper structure. Recyclable with paper streams; insulating performance differs from foam and must be tested.
• Foil-faced bubble liner — A thin flexible liner that folds around the contents. Lowest cost and lowest bulk; also the least insulating.
• Liner-free insulated board — Corrugated with an integrated insulating layer, giving a single-material shipper.

Outer carton specification

• Single-wall B-flute — The general-purpose transit board. Good crush resistance for its weight.
• Single-wall C-flute — Thicker flutes, better cushioning, slightly less stacking strength than B for the same weight.
• Double-wall BC — For heavier loads or where cases are stacked several high.
• E-flute — Thin and printable; used for retail-facing shippers rather than pure transit.
• Board grade — Specified against the loaded weight and the stacking height, not chosen from a standard size.

Flute choice is the decision that most affects how a loaded case behaves, and the differences between E, B, C and BC are described in the board and flute reference.

Reducing vial movement in transit

Most transit damage to vials is not caused by a single dramatic impact. It is caused by thousands of small movements over hours of vibration.

• Secondary packaging — The product box itself should already hold the vial. The shipper protects the box, not the vial directly.
• Dividers and partitions — Corrugated cells keeping multiple product boxes from grinding against each other.
• Void reduction — A shipper sized to the load, so nothing has room to accelerate before it hits something.
• Corner and edge protection — Folded corner pieces or a floating inner tray where the load is fragile.
• Coolant separation — A divider between the gel pack and the product box, so direct contact is controlled rather than accidental.

The single most effective change most shippers can make is reducing void, not adding cushioning. The principle is explained further in our note on packaging considerations for temperature-sensitive shipments.

Gel pack accommodation

If your configuration uses coolant, the box has to be designed around it from the start. Adding a gel pack to a box that was sized without one is how vials get crushed.

• Dedicated coolant cavity — A defined space for the gel pack so it cannot shift onto the product.
• Coolant above or beside — Position affects how the pack behaves; your testing should determine which works for your route.
• Condensation allowance — Gel packs sweat. A moisture barrier or a coated inner surface stops the corrugated softening.
• Weight allowance — Coolant is heavy. The board grade has to account for it, not just for the product.

Tamper-evident sealing options

• Tamper-evident tape — Printed tape that shows a void message if lifted.
• Security seal labels — Applied across the flap joint; destroyed on opening.
• Perforated opening strip — A tear line that cannot be resealed invisibly.
• Numbered seals — Sequentially numbered labels where chain-of-custody documentation is needed.

Whether tamper evidence is required for your shipments, and what form it must take, is a decision for you and your regulatory advisers. We supply the components.

Printed handling markings

• Orientation arrows — Indicating which way up the box should travel.
• Handling text — Content you author, such as storage or handling instructions.
• Clear label panel — An unprinted, matte area where carrier labels will adhere reliably.
• Fragile and stacking marks — Standard symbols where you determine they are appropriate.
• Plain outer — Some shippers deliberately keep the outside unbranded. We can supply completely plain cartons.

Whatever is printed on the outer, keep the carrier label area matte and flat — the reasoning is the same as for any applied-label zone.

Transit testing considerations

If you need documented performance, this is roughly what that involves — and why we are careful not to imply we can shortcut it.

• Test the packed configuration — Not the box alone. The product, the insert, the coolant and the outer together are what performs.
• Test the route — Duration, handling and ambient conditions differ between carriers and lanes.
• Test the season — A configuration that works in spring may not in a summer trailer.
• Use an accredited laboratory — Where documented evidence is required, testing needs to be independent.
• Re-test after changes — Any change to the vial, insert, coolant or board invalidates earlier results.

Ordering shipping packaging

• 1. Describe the load — What is inside, how many, and what it weighs when packed.
• 2. Describe the journey — Carrier, typical duration, and whether coolant is used.
• 3. Specification — We propose board grade, liner type, dividers and coolant accommodation.
• 4. Samples for your testing — We produce samples in the configuration you want to test.
• 5. Iterate, then produce — You test, we adjust, then the specification is fixed and produced.

Artwork guidance

• Leave a clear matte panel for carrier labels — laminated or heavily printed areas can reject label adhesive.
• Keep printing off the flap glue areas, where ink can interfere with taping.
• On corrugated, avoid fine reversed type; flute structure shows through at small sizes.
• If the outer is deliberately unbranded, say so explicitly — we will supply plain kraft.
• Supply insert artwork as print-ready PDF with outlined type and 300 dpi links.

Quality control

• Board grade is verified against the specification on receipt.
• Assembled samples are loaded to the stated weight and checked for base and corner integrity.
• Liner fit is checked so there are no gaps at the corners.
• Coolant cavities are verified against the actual gel pack you will use.
• Print registration and label panel finish are inspected.

Delivery

• Corrugated shippers arrive flat and are erected during packing.
• Liners are supplied cut or formed to the carton, packed separately.
• Dividers and partitions arrive flat.
• Nationwide delivery across the United States.