Cold-chain handling: storing compounded peptides correctly
A peptide is only as good as its last 24 hours of handling. Potency that survived synthesis, testing, and shipping can still be lost in a clinic fridge that runs warm or a vial left on a sunny counter. Here is how to protect what you paid for.
Temperature
Most lyophilized (freeze-dried) peptides are shipped and stored refrigerated at 2–8°C. Lyophilized powder is more stable than reconstituted solution, which is one reason product ships as a dry cake. Keep a calibrated thermometer in your storage fridge and avoid the door shelf, where temperature swings most.
Light and handling
Protect vials from light and avoid unnecessary temperature cycling. Do not freeze reconstituted product unless the pharmacy’s labeling specifically allows it, and never shake vigorously — swirl to dissolve.
Reconstitution and beyond-use dating
Once reconstituted, a peptide’s clock starts. Follow the pharmacy’s reconstitution instructions and beyond-use dating exactly, label the vial with the date, and store as directed.
How we ship
Orders go out in insulated, temperature-controlled packaging with a cold pack so product arrives within spec. From there it is a short handoff: get it into the fridge, keep your storage validated, and follow the labeling.
Stocking peptides for your practice?
Pharmacy-backed product with a COA on every lot, shipped cold-chain. Request pricing for your program.
Request a quote →This article is general educational information for licensed practitioners and is not medical, legal, or regulatory advice. Compounded preparations are not FDA-approved; availability and permitted use depend on current FDA and state regulations, which change. Confirm requirements for your jurisdiction with qualified counsel and your pharmacy partner.