SeqLine Bio · Lyophilized peptide supplier
Lyophilized peptide vials
Freeze-dried peptides in sealed glass vials.
We lyophilize, fill, label and pack on our own line. Each vial carries a lot code, and that lot has its own COA with HPLC purity and MS identity. Order from one kit (10 vials) for most catalog compounds.
The format
What a lyophilized vial is.
Lyophilization (freeze-drying) removes water from the peptide under vacuum at low temperature. The result is a dry powder sealed in a glass vial, which is easier to store and ship than a solution. The buyer reconstitutes it in the lab when needed.
| Container | Sealed glass vial |
|---|---|
| Vial sizes | Per compound; listed on each product page |
| Label | Neutral label with lot code by default; your own label from 100 kits |
| Storage | 2–8 °C away from light; −20 °C for longer storage |
| Kit | 10 vials |
Lot records
What the COA shows.
Every published lot has a public COA in the COA library. The lot code on the vial label matches the COA.
- HPLC purity against our release specification, NLT 98.0%
- MS molecular-weight identity
- Lot number, manufacturing, test and retest dates
- A QR code linking to the online record
FAQ
Questions about lyophilized vials.
Which compounds do you supply as lyophilized vials?
Most of the catalog, including GLP-1 research peptides such as tirzepatide, retatrutide and cagrilintide, and peptides such as BPC-157, TB-500, Ipamorelin, Semax, Selank and GHK-Cu. Each product page lists its vial sizes.
What purity is specified?
Our release specification is NLT 98.0% by HPLC. The actual result for each lot is on its public COA, together with MS identity.
How should vials be stored?
At 2–8 °C protected from light, or at −20 °C for long-term storage.
How fast do vials ship?
Confirmed ready-to-ship orders, including samples from released stock, dispatch within 3 business days after written payment confirmation. Samples requiring preparation: 3–7 business days; production and private label: 7–15 business days after the agreed conditions are complete. Private label also requires artwork approval. Transit and customs are additional. Import responsibilities follow the written delivery term; DDP is available for eligible products and destinations after confirmation.
Can I have my own label on the vials?
Yes, from 100 kits (1,000 vials): your label, carton and insert. Smaller orders ship with our neutral label.
B2B and research use only. We do not give dosing or human-use advice. Buyers confirm the regulatory requirements of their destination market; see our compliance position.
Next step
Tell us the compound, vial size, quantity and country.
We reply within 4 hours during business hours with price, lead time and the COA for the lot you would receive.