Key takeaways
- Larger vial quantities, such as the 50 mg GHK-Cu vial, support more repeat HPLC runs from a single lot.
- Every vial in this list carries a certificate of analysis per lot, with HPLC and mass-spectrometry data.
- Shorter peptides like Epithalon suit early-gradient retention-time calibration; longer ones like MOTS-c suit later comparisons.
- Match vial size to the scope of the validation study before ordering to avoid reordering mid-method.
- Bacteriostatic water and sterile glass vials for the lab are listed separately under Lab Supplies.
How we ranked these five
Laboratories building an HPLC method need a stable reference material, a documented purity value, and a certificate of analysis tied to a lot number. We ranked five peptides from the Research Peptides catalogue on three points: vial quantity relative to price, HPLC purity value, and depth of documentation supplied per lot. All five are lyophilized powders with a certificate of analysis per lot, suited to in-vitro method work only.
None of these rankings reflect performance, effect, or suitability for any use beyond laboratory research. For laboratory research use only. Not for human or veterinary use.
1. GHK-Cu Copper Tripeptide, 50 mg
The GHK-Cu copper tripeptide, 50 mg lyophilized vial ranks first for method development because of its vial quantity. At 50 mg per vial with ≥99% purity by HPLC, it gives a laboratory more material per lot to run repeat injections, calibration curves, and system suitability tests without reordering.
Spec line: GHK-Cu copper tripeptide, 50 mg per vial, ≥99% by HPLC, blue lyophilized powder, CoA per lot, $39.99 CAD.
2. CJC-1295 without DAC, 5 mg
The CJC-1295 without DAC, 5 mg lyophilized vial ranks second. It is a modified GRF 1-29 fragment, useful as a reference peptide for method work involving mid-length sequences. The 5 mg quantity suits smaller runs where the lot is reserved for a single validation study.
Spec line: CJC-1295 without DAC (modified GRF 1-29), 5 mg per vial, ≥99% by HPLC, lyophilized, CoA per lot, $59.99 CAD.
3. MOTS-c, 10 mg
The MOTS-c 16-amino-acid peptide, 10 mg lyophilized vial ranks third. As a longer 16-amino-acid sequence, it is a useful reference point for retention-time comparison against shorter peptides in the same method. The 10 mg vial size supports several replicate preparations from one lot.
Spec line: MOTS-c 16-amino-acid mitochondrial-derived peptide, 10 mg per vial, ≥99% by HPLC, lyophilized, CoA per lot, $69.99 CAD.
4. Epithalon, 10 mg
The Epithalon tetrapeptide, 10 mg lyophilized vial ranks fourth. This tetrapeptide (Ala-Glu-Asp-Gly) is short and simple, which makes it a practical low-complexity reference for calibrating retention time at the early end of a gradient. The 10 mg quantity balances cost against volume of use.
Spec line: Epithalon tetrapeptide (Ala-Glu-Asp-Gly), 10 mg per vial, ≥99% by HPLC, lyophilized, CoA per lot, $44.99 CAD.
5. Ipamorelin, 5 mg
The Ipamorelin pentapeptide, 5 mg lyophilized vial ranks fifth. As a pentapeptide, it offers a mid-size reference point between the tetrapeptide and longer sequences on this list. The 5 mg vial is appropriate for a single method-validation series rather than ongoing repeat runs.
Spec line: Ipamorelin pentapeptide, 5 mg per vial, ≥99% by HPLC, lyophilized, CoA per lot, $49.99 CAD.
Summary table
| Product | Price | Best for |
|---|---|---|
| GHK-Cu, 50 mg | $39.99 CAD | Repeat injections from one lot |
| CJC-1295 without DAC, 5 mg | $59.99 CAD | Single validation study, mid-length sequence |
| MOTS-c, 10 mg | $69.99 CAD | Retention-time comparison, longer sequence |
| Epithalon, 10 mg | $44.99 CAD | Low-complexity retention calibration |
| Ipamorelin, 5 mg | $49.99 CAD | Mid-size pentapeptide reference |
Ordering and documentation
Each vial ships with a certificate of analysis specific to its lot number, including HPLC and mass-spectrometry data. Purchasing officers can file the certificate against the lot on the label at the time of order. Related consumables, including bacteriostatic water and sterile 10 mL glass vials, are listed under Lab Supplies.
Store lyophilized peptides as indicated on the label prior to use in method development. For laboratory research use only. Not for human or veterinary use.
