Shelf-stable
Typical lyophilized peptide stability: multiple years at −20 °C and roughly 18–24 months at 2–8 °C. Pre-reconstituted solutions can degrade in days.
Pepti · Lyophilized peptide supplier
Lyophilized peptide supply
Lyophilized peptide powder — glass vials, batch-linked COA for each production lot.
Freeze-dried peptide powder in sealed glass vials. COA + HPLC + MS for the production lot. Multi-year shelf life at −20 °C.
Why lyophilized
Freeze-dried, sealed, stable — the B2B-standard peptide format.
Lyophilization removes water under vacuum at low temperature, preserving peptide structure and dramatically extending shelf life. It's the format research organizations, brand owners and labs actually want to receive — not pre-reconstituted solutions.
Cold-chain friendly
Sealed low-moisture vial tolerates routine cold-chain transit better than liquid format. Vials ship in temperature-controlled outer packaging with tracking.
Reconstitute on use
Buyer or research organization reconstitutes at point of use with bacteriostatic water, controlling sterility (only if specifically ordered and tested) and exact concentration on every prep.
Per-batch document pack
What ships with every lyophilized lot.
Every Pepti lyophilized vial leaves with a buyer-verifiable lot file.
| Evidence | What buyers see |
|---|---|
| Certificate of Analysis (COA) | Batch-level certificate — compound identity, HPLC purity %, MS identity confirmation, water content (KF), endotoxin (only if specifically ordered and tested) (LAL), lot code, QC sign-off, retest date. |
| HPLC purity | RP-HPLC chromatogram (UV 220 nm) — ≥99% area-purity target on flagship compounds. |
| MS identity | ESI-TOF mass spectrum confirming the molecular-ion envelope vs the compound reference. |
| Water content | Karl Fischer measurement (typical ≤4% on lyophilized vials) — stability and storage planning. |
| Lot traceability | Lot code printed on vial label, repeated in document pack and carton outer. Reorders cite the prior lot for continuity. |
Want a sample COA before ordering? Request one on WhatsApp.
Lyophilized catalog
The full range, lyophilized.
Every compound below is supplied as lyophilized powder in a sealed glass vial. Click through for spec sheet, vial formats and lot-file preview.
Repair & recovery
GH-axis
Sermorelin, Ipamorelin, CJC-1295, Tesamorelin, GHRP-2, GHRP-6
Research & cognitive
Beauty
GLP-1 family (research)
Semaglutide, Tirzepatide, Retatrutide, Cagrilintide. GLP-1 2026 update →
Other research
PT-141, Melanotan-II, AOD-9604, Bacteriostatic water · full catalog →
FAQ
Common lyophilized-peptide questions from B2B buyers.
What is a lyophilized peptide?
A peptide compound freeze-dried into a sterile, low-moisture powder inside a sealed glass vial. Lyophilization removes water under vacuum at low temperature, preserving structure and dramatically extending shelf life — typically multiple years at −20 °C and roughly 18–24 months at 2–8 °C.
Why source lyophilized over pre-reconstituted peptides?
Lyophilized vials are the B2B-standard format: stable for transit, easy to ship at controlled temperature, simple to inventory, and reconstituted only at point of use. Pre-reconstituted peptides degrade quickly and complicate cold-chain logistics.
What lyophilized peptides do you supply?
Repair, GH-axis, research, beauty, cognitive and GLP-1 family — see the catalog sections above. All compounds supplied as lyophilized powder in glass vials with COA + HPLC + MS for the production lot.
What's your HPLC purity target on lyophilized peptides?
≥99% area purity by HPLC on flagship compounds (BPC-157, Sermorelin, Ipamorelin, GHK-Cu, Semaglutide, Tirzepatide). Other compounds carry their own published targets — see individual product pages.
How is lyophilized peptide powder shipped?
Cold-chain courier with temperature-controlled outer packaging. Sample lots dispatch in 3–7 days after spec/payment confirmation; production lots in 10–18 days after spec, artwork where relevant, and payment confirmation. Buyer of record handles import; shipment ships with COA and commercial invoice.
Compliance: Pepti supplies qualified B2B and research buyers only. Nothing here is medical advice, a dosing recommendation or a treatment claim. GLP-1 family lyophilized vials are supplied as research peptides; buyers confirm local regulatory compliance — see the compliance position.
Quote a lyophilized lot
Tell us compound, vial size, qty and country.
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