The vial
Most research peptides ship as a freeze-dried powder in a small glass vial. Many sellers buy vials already filled and sealed by their supplier. If you are specifying them yourself, settle these points in writing.
- Vial size: 2 mL and 3 mL clear glass are common for small quantities. Pick one or two sizes and keep them consistent so labels, holders and boxes fit everything.
- Glass type: clear glass lets a buyer see the powder. Amber glass protects light-sensitive products.
- Fill: the amount per vial must match the label and the lab report for that batch.
Caps and seals
A rubber stopper held by a crimped aluminium seal with a flip-off plastic cap is the usual closure. It shows when a vial has been opened, and the cap colour is an easy way to tell products apart on the shelf.
- Use cap colours consistently. If each product or brand line has its own colour, pickers make fewer mistakes.
- Check that seals are crimped evenly. A loose seal is the most common cause of a vial arriving opened or leaking.
- If you use tamper-evident shrink bands or seal stickers, apply them the same way every time so a missing one is obvious.
Boxes and custom packaging
Printed boxes make a brand look established, but they carry minimum order quantities and lead times. Start with plain stock boxes and a printed label, and move to custom boxes once you know which products sell.
| Option | Good for | Watch out for |
|---|---|---|
| Plain box with a printed label | New brands and small runs | Label size and placement must stay consistent |
| Custom printed box | Established lines with steady volume | Minimum orders, reprint costs when wording changes |
| Multi-vial case or holder | Kits and wholesale orders | Must hold each vial apart so glass cannot touch |
Keep batch-specific details, such as the lot number and a QR code to the lab report, on a label rather than printed on the box. Then one box design works for every batch.
What every surface must say, and what it must not
Everything printed on your packaging counts as your statement about the product, the same as your website.
- Include: product name, amount per vial, lot number, storage conditions, your company name and contact, and a clear research-use-only statement.
- Leave out: pictures of people or bodies, lifestyle imagery, anything describing what a compound does in people, and instructions for use.
- Keep the same product names and strengths on the packaging, the label, the lab report and the invoice.
Run new packaging copy through the wording checker before you order a print run. Reprinting a box is far more expensive than editing a web page. For the label itself, see research peptide vial labels.
Inserts
A small insert card is useful for things that do not fit on a label: how to look up the lab report, your contact details, and the research-use-only terms of sale. Keep inserts factual. A thank-you card is fine; a card suggesting what to do with the product is not.
Ordering packaging without running out
- Track packaging stock the same way you track product stock, with a reorder point.
- Order boxes and labels well ahead of product launches. Print lead times are often longer than supplier lead times.
- Keep a small reserve of plain boxes so a late print run never holds up orders.
Doing it in Purity
Purity prints a batch label for every batch, with the product, batch number and a QR code to its public report page, so one box design works across batches. Product copy runs through the same wording check as your emails and texts, and each order line records the batch that filled it. See it on the demo.
Common questions
- What size vials do research peptide sellers use?
- Small clear glass vials, most often 2 mL or 3 mL, with a rubber stopper and a crimped flip-off seal. Pick one or two sizes so labels, holders and boxes fit everything.
- Should I buy custom printed boxes for my peptide brand?
- Start with plain boxes and a printed label, then move to custom boxes for products with steady sales. Custom boxes carry minimum orders and cost money to reprint when wording changes.
- What must never go on research peptide packaging?
- Images of people or bodies, lifestyle imagery, anything describing what a compound does in people, and instructions for use.