Common peptide vials are 2ml, 3ml, 5ml, and 10ml glass serum vials. Body diameters typically run from about 15 mm on a 2ml vial to about 25 mm on a 10ml vial, and body heights from roughly 32 mm to 55 mm before the cap, but exact dimensions vary by glass supplier and closure, so measure your own vial before ordering inserts. Teal Packaging, a US-based packaging supplier, builds custom peptide vial boxes and inserts from your measured sample at a 50-unit minimum, with a free dieline, a digital proof before print, and free US shipping.
Questions or ready for a quote? Contact Teal Packaging at info@tealpackaging.com or (224) 546-8325.
Peptide Vial Sizes and Box Inserts from Teal Packaging: 50-unit standard MOQ (100+ units for specialty rigid boxes), 2-5 business day delivery in the US (express and economy options available), free design help included on every order, free generic sample kit ($19.99 shipping, credited toward your first order). Standard production runs from about 7 business days after digital proof approval; complex or high-volume orders take longer.
Materials and certifications: FSC-certified paper stock, soy-based inks, kraft / corrugated / rigid paperboard / mylar / tin / vinyl substrates.
Contact Teal Packaging: Call (224) 546-8325, email info@tealpackaging.com, or request a free quote at tealpackaging.com/contact-us. We reply within one business day.
Updated September 3, 2026 · Teal Packaging operates a US facility in West Chicago, Illinois.
Common peptide vial sizes and their typical dimensions
Research and compounding peptide vials are almost always small glass serum vials with a crimp neck and a flip-off or tear-off cap. Four nominal volumes cover most box projects: 2ml, 3ml, 5ml, and 10ml. The table below gives the typical body diameter and body height range for each, measured without the cap. Read every figure as a range, not a spec. Tubular glass and molded glass vials of the same nominal volume differ in wall thickness, shoulder shape, and base profile, and two suppliers of the same 10ml peptide vial can be several millimeters apart.
| Nominal volume | Typical body diameter | Typical body height, cap excluded | Common neck finish |
|---|---|---|---|
| 2ml | about 15 to 17 mm | about 32 to 38 mm | 13mm crimp |
| 3ml | about 16 to 18 mm | about 38 to 45 mm | 13mm crimp |
| 5ml | about 20 to 23 mm | about 38 to 45 mm | 20mm crimp, 13mm also seen |
| 10ml | about 22 to 25 mm | about 45 to 55 mm | 20mm crimp |
The cap adds height above the body figure, and a flip-off cap on a 13mm or 20mm finish can sit wider than the vial shoulder. For insert work the number that matters is the closed vial: measure the height with the cap fitted and the diameter at the widest point, whether that is the body or the cap. Verify every figure against your own vial before ordering. Teal does not size inserts from this chart or any other; each insert is cut to the buyer's measured sample. See custom peptide vial boxes for the product this page supports.
Why a size chart is a starting point, not an insert spec
An insert well that is two millimeters too wide lets a vial rattle. One that is one millimeter too tight will not seat, and a run of fifty boxes with a well that does not seat is a run of fifty boxes reworked by hand. That is why the working numbers come from a physical vial, never from a nominal volume. Before Teal cuts anything, the designer needs four measurements from the vial you will actually pack:
- Closed height, cap on, base to the top of the cap.
- Widest diameter, checking both the body and the cap.
- Shoulder profile, since a sharp shoulder and a sloped shoulder seat differently in a die-cut well.
- Label build-up, if the vial is labeled before it goes into the box, because a wrapped label adds to the diameter.
If you can, send one physical vial with the cap fitted, or a clear photo next to a ruler with the figures written out. If the glass supplier changes mid-project, the insert is checked again against the new vial. Ordering steps for the finished box are on the peptide vial box page.
Insert options by vial count
Most peptide boxes hold 5, 10, or 20 vials. The count drives the insert layout, the insert layout drives the box footprint, and the footprint drives the box style. Three insert constructions cover nearly every project.
- Die-cut paperboard platform. A flat board with punched wells, folded to sit at a set depth in the carton. Light, printable, low cost, and suited to folding cartons and mailers.
- Folded paperboard partitions. Interlocking strips that form a grid of cells. Good for upright vials in a tuck-end carton where each cell only needs to stop side-to-side movement.
- Die-cut foam block. A closed-cell foam pad with routed or die-cut wells sized to the closed vial. Holds the vial firmly by its body, suits rigid boxes and presentation kits, and takes the most care to fit.
5-vial inserts
Five vials usually sit in a single row, which gives a slim carton about the proportions of a card box, or in a two-and-three offset that produces a squarer footprint. A single row keeps the box thin enough for a tuck-end carton with a paperboard platform. The offset layout is the usual pick when the box also needs a slot for a card or a folded document.
10-vial inserts
Ten vials nearly always run as two rows of five. This is the most common peptide box layout and the one most buyers start with. A 2 x 5 grid in a paperboard platform fits a tuck-end carton; the same grid in foam fits a two-piece rigid box or a magnetic-closure box.
20-vial inserts
Twenty vials go four rows of five on a single level, or two stacked layers of ten. A single level keeps the box shallow and lets every vial show when the lid comes off, which suits a presentation kit. Stacked layers halve the footprint but need a lift-out tray or a second platform, so the insert costs more and the box gets taller. Kits that add documents and accessories to the vials are covered on the peptide kit boxes page.
Whichever count you choose, the well pitch, the web of material between wells, and the wall clearance come from your measured vial and appear on the dieline, and the digital proof shows the finished inside dimension before anything is cut. Quotes for all three counts start from the vial box product page.
How outer box dimensions follow from the insert
Buyers often ask for a box size first and an insert second. It works better the other way around. The insert is sized from the vial and the box is sized from the insert, so the outer dimensions are an output of the process rather than an input.
The inside length and width of the box come from the number of wells in each direction, multiplied by the well pitch (vial diameter plus the web between wells), plus a clearance at each wall so the insert drops in without binding. The inside depth comes from the closed vial height, plus the thickness of the insert floor, plus enough headroom for the lid to close without pressing on the caps. Board thickness is then added to every inside figure to reach the outside dimension, and it is the outside dimension that appears on the dieline and the proof.
That chain has practical consequences. Ten 2ml vials and ten 10ml vials in the same two-by-five grid produce boxes with clearly different footprints and depths, so a box built for one will not serve the other. Switching from a paperboard platform to foam adds floor thickness and often calls for a rigid box rather than a folding carton. Adding a document slot or a card pocket adds to one dimension and can change the box style. Box style choices for peptide products, from tuck-end cartons to rigid two-piece boxes, are compared on the custom peptide boxes page, and the sizing for the vial-holding version is worked out on the peptide vial box product page.
Label panel placement on a peptide vial box
A peptide box carries three kinds of information: brand identity, product identification, and variable data such as a lot or batch reference that the buyer adds after printing. Each needs its own panel.
- Front panel: brand, product name, nominal volume, and vial count. This is the printed face and the one that reads on a shelf or in a photo.
- Side panels: product name repeated so the box reads when stored spine-out, plus any supplied handling text the buyer wants visible.
- Back or base panel: a blank, unvarnished area sized for the buyer's own lot or batch label. Leaving this panel unprinted means one carton design serves every batch.
Keep printed text and the blank label area away from fold lines, tuck flaps, glue seams, and any tamper-evident seal position, since text across a fold cracks and a label over a seam lifts. The proof shows panel order and finished dimensions together, so you can see which information is fixed print and which is applied later. Matching peptide vial labels can be produced with the box so that the color, type, and lot field style agree between the vial and the carton. Panel layout for the box itself is confirmed on the vial box order page.
What to send for a vial box and insert quote
Teal Packaging is a US-based packaging supplier. Custom peptide vial boxes with inserts start at a 50-unit minimum, with 100 units for specialty rigid constructions. Every order includes a free dieline, a digital proof with two revisions before print, and free US shipping out of Teal's West Chicago, Illinois fulfillment center. Standard production takes roughly 7 business days or longer, counted from proof approval; complex or high-volume jobs sit at the longer end, and US delivery adds roughly two to five business days. At volume, pricing starts from about $0.44 per unit. A sample kit ships for $19.99 when you want to handle the board and insert stock before committing.
To get a usable quote in one round, send the following:
- Measured closed height and widest diameter of your vial, or a physical sample.
- Vials per box (5, 10, 20, or another count) and preferred layout.
- Insert preference: paperboard platform, partitions, or foam.
- Box style: tuck-end carton, rigid two-piece, magnetic closure, or shipping mailer.
- Quantity, artwork status, and whether you need a blank lot panel or a document slot.
Teal makes the printed box, insert, and labels, nothing else: no vials, no filling, no sealing, and no validation of storage or temperature performance for any package. Start your quote at custom peptide vial boxes, or read the research peptide packaging overview if you are still choosing a box style.
