Peptide storage for Canadian laboratories

Research-use notice: This article is laboratory and educational information only. It is not medical or legal advice, and it does not include how-to-use instructions. BlueNex Labs materials are research use only and are not intended for human or veterinary use. Research-use-only labelling is not a Health Canada authorization.

Publication status: Prepared for the BlueNex Labs Research Knowledge Centre. Literature and library notes checked September 24, 2026. Primary papers and the public COA library can change; verify the lot report in hand before an assay.

Lyophilized peptides are sensitive to moisture, oxygen, light, and temperature cycling. Handling quality starts when the Canada Post parcel is opened, not when the assay is pipetted. BlueNex Labs ships inside Canada only. Seasonal weather still varies between a mild autumn delivery and a January freeze, so move vials into controlled storage promptly. This note is receiving practice. It is not a reconstitution method and it does not set a concentration.

On receipt

Open the parcel the day it arrives. Inspect the outer packaging, the vial seals, and the labels. Compare the name and milligram fill with the order. Photograph crushed boxes, thawed ice packs that were not supposed to be warm, or cracked caps within 7 days, and email the order number as the FAQ and Terms describe. Do not leave parcels in vehicles, outdoor boxes, or loading docks. A sunny cab or a cold loading dock can undo a careful pack-out in an afternoon.

The desk is in Burnaby. Xpresspost labels use a Port Moody PO Box. Transit time after the Canada Post scan is typically a small number of business days and is not a guarantee. Domestic fulfilment avoids a border hold. It does not remove the need to log the lot when the box reaches the bench.

Why the solid is dry

Water allows hydrolysis and can collapse a lyophilized cake. Manufacturers remove water so the sequence survives shipping and storage better than a pre-dissolved liquid would. That rationale is also the reason to keep the cap on. Every minute the vial is open in humid air is a minute of moisture uptake. Coastal British Columbia laboratories feel this more than dry inland rooms, but the control is the same: sealed vial, limited open time, no bench storage "until Monday" with the cap loose.

For the format primer, see lyophilized peptides: freeze-dried format. The definition of a research peptide is a different page, What are research peptides?. Degradation pathways and realistic timelines are in peptide degradation. Light and temperature, as separate variables, are in light and temperature sensitivity.

Temperature, without inventing a house number

Follow the temperature on the product listing or the supplier note for that SKU. Many peptide-handling references store a sealed lyophilized vial cold for long periods and limit room-temperature time, but those references are not a substitute for the note on the lot you received. Do not assume every peptide on the catalogue shares one freezer setpoint. Write down the setpoint your SOP actually uses, next to the product name.

Temperature shock is the practical risk after a winter delivery. Let a very cold parcel equilibrate in a dry box before you condemn a cake that looks unusual, and do not heat the vial to speed that step. Once a solution has been prepared under your own SOP, avoid repeated freeze-thaw of the whole stock. Aliquot. This article stops before the solvent volume. Bacteriostatic water, if your SOP calls for that diluent, is a separate reagent with its own note: bacteriostatic water storage and the Hospira 30 mL listing.

Light and oxygen

Keep vials in the carton or another opaque container when they are not at the pipette. Benchtop sun and strong task lighting are unnecessary exposure. Oxygen matters most when a solution has a large headspace and sits warm; for the dry vial, the seal and the dry environment do more work than a special gas overlay you were not instructed to use. If a listing specifies an inert headspace, follow that listing. An inert headspace is used only when that listing states one.

Records that make the COA usable

Log product name, lot or cap identity, receipt date, storage location, and the person who received it. Match the lot to the Certificate of Analysis library before the material enters a regulated study file. A BPC-157 10 mg report does not document TB-500. A GHK-Cu report does not document a GLOW blend. For the document primer, see What is a peptide COA in Canada?.

Examples of notes that explain the sequences, as opposed to this handling page: BPC-157, TB-500, GHK-Cu, and the paired literature note BPC-157 and TB-500. Shop URLs for those materials stay on the product pages linked from those notes.

What this page refuses to be

It is not a city directory. Laboratories in every province use the same catalogue, the same Interac checkout, and the same library. It is not a reconstitution guide, not a schedule, and not advice for people or animals. Solution concentration is an experimental variable that belongs in the method you are running. If a vial's cake looks collapsed, discoloured, or wet on arrival, quarantine it and write to the desk with photographs rather than trying to "save" it from a blog checklist.

Quarantine, seasonal transit, and the log

A quarantine bin is just a labelled box that is not the working stock. Use it when the seal is broken, the cake is wet, the label does not match the packing list, or the certificate link will not open. Record the reason in one sentence. The Burnaby desk can look up the order number; it cannot reconstruct a lot identity from a vial that has already been relabelled by hand.

Winter deliveries in Canada add a freeze-thaw risk on the truck even though the route is domestic. Summer deliveries add heat in a parked vehicle. Neither season changes the analytical identity of a lot that stayed sealed and dry, and both seasons are reasons to shorten the time between the doorstep and the storage location. Write the receipt time, not only the receipt date, when the parcel sat somewhere warm or frozen before it reached the laboratory. Carrier, Interac, and Burnaby-desk facts for that parcel are in the Canada laboratory procurement note.

The log that pairs with this note is the same six-field receiving file used in the sourcing checklist: SKU, lot, date, location, report URL, and whether the sample name matched. Storage location is the field this page adds emphasis to, because a correct COA filed in a drawer does not help if the vial itself is on a sunny shelf.

Frequently asked questions

What should a lab do when a Canada Post parcel arrives?

Inspect the outer pack and the vial labels the same day. Photograph damage within 7 days and email the order number, as the FAQ and Terms describe. Do not leave the parcel in a vehicle, an outdoor box, or a loading dock.

Why does moisture matter for a lyophilized vial?

A dry cake is used because water speeds hydrolysis and can collapse the solid. Humidity in a coastal laboratory, and condensation after a cold delivery, are practical risks. Keep the vial sealed until the assay and limit how long the cap is off.

No. It covers receipt, sealed storage, light, temperature cycling, and lot records. Solution preparation belongs in the laboratory SOP. This page does not list solvent volumes.

Where is the lot matched to a Certificate of Analysis?

Open the certificates library and match the product name, size, and any published cap or batch note to the vial. Log the lot, receipt date, and storage location before the material enters a study file.

Catalogue cross-reference

Storage notes are laboratory receiving practice. They are not solution ratios for people or animals. Open the matching COA before the material enters a study file, and use the shop only for a laboratory purchase.

Orders ship inside Canada only after Interac e-Transfer checkout. Sold-out SKUs remain listed and cannot be added to the cart. Match each vial to its own Certificate of Analysis when a lot is published. Research use only. Not for human or veterinary use.