Storage guide
Proper storage is essential to maintain the integrity and purity of research peptides. Here you will find everything you need to know.
Each stage of a peptide's life cycle requires specific storage conditions.
Ideal state for long-term storage. The powdered peptide is stable at this temperature for months or years.
⏱ Hasta 24 mesesOnce dissolved with bacteriostatic water, the peptide must be kept refrigerated and used soon.
⏱ 30–60 daysAs lyophilized powder, the peptide is stable at room temperature for weeks or months. 24–72 hr shipping poses no risk to its integrity.
⏱ Estable semanas/mesesFrom the moment it leaves our warehouse until its use in the laboratory.
Your peptide is kept refrigerated at 2–8°C in our facilities until dispatch, protected from light, preserving the integrity of the batch.
The peptide travels in its lyophilized (powder) form, which is stable at room temperature for weeks or months. That is why 24–72 hr shipping does not compromise its integrity. We pack it securely and discreetly.
When you receive your order, move the vial to refrigeration (2°C – 8°C) immediately if you are not going to use it in the next few days.
Take the vial out of the refrigerator and let it reach room temperature (15–20 min) before opening it. This prevents moisture from the air from condensing on the lyophilized powder, which could start dissolving it prematurely.
Add the bacteriostatic water (included in your order) according to the volume calculated with our tool. Dissolve by rolling gently, label with date and concentration, and refrigerate immediately.
Keep the vial at 2–8°C and use it within the following 30 to 60 days. If you need to store it longer, divide it into aliquots and freeze at -20°C before the first hours after reconstitution have passed. Never refreeze a solution that has already been thawed.
Ideal conditions according to the peptide's state.
| State | Temperatura | Maximum duration | Protection from light | Notes |
|---|---|---|---|---|
| Polvo liofilizado (vial cerrado) | -20°C or below | 18–24 meses | Yes — amber vial | Ideal option for the long term |
| Polvo liofilizado (refrigerado) | 2–8°C | 6–12 meses | Yes | Si uso inminente |
| Reconstituted solution (refrigerated) | 2–8°C | 30–60 days | Yes | Use within 30–60 days |
| Frozen aliquots | -20°C | Hasta 3 meses | Yes | Descongelar solo lo necesario |
| In transit (lyophilized) | Ambiente | Semanas | Recomendable | Stable as powder · no risk during shipping |
| Temperatura ambiente prolongada (reconstituido) | >25°C | NO recomendado | — | Risk of degradation |
Storage mistakes are the main cause of potency loss in peptides.
Each cycle degrades the peptide structure. If you thawed a vial, use it or refrigerate it — do not freeze it again.
UV and visible radiation can degrade some peptides. Always store in amber vials or in a dark place.
Lyophilized powder can absorb moisture from the air if the vial is opened frequently. Use aliquots.
Without the date and concentration written down, you will not know whether the solution is still valid. Always label.
Divide the vial into individual portions before freezing. Each session you thaw only what you need.
Before opening a vial from the freezer, wait 15–20 minutes for it to reach room temperature to avoid condensation.
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