Kisspeptin-10, a C-terminally amidated 10-amino-acid synthetic peptide. It is used in in vitro work on peptides of the RF-amide family and their analytical characterisation. 5 mg vial, lyophilized powder, ≥99% HPLC purity verified by third-party analysis. For research use only.
Research areas
- Peptides of the RF-amide family
- Short form vs long form comparison
- Analytical characterisation (HPLC, mass spectrometry)
Technical data
| Field | Value |
|---|---|
| Name | Kisspeptin-10 (KP-10) |
| Amount per vial | 5 mg |
| Sequence | Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe-NH₂ |
| Molecular weight | ≈ 1,302.5 Da |
| Form | Lyophilized powder (unless stated otherwise) |
| Purity | ≥ 99% (HPLC) — see batch COA |
| Shipped from | France, within 24 business hours |
KP-10 or KP-54? The mass settles it
The name "kisspeptin" covers several peptides of different lengths. The two most often encountered are the long 54-amino-acid form (KP-54) and the short 10-amino-acid form (KP-10), which reproduces the end of the long chain. They are not the same molecule, and the price of a vial of one does not compare with the other.
Two criteria settle it, both readable on the certificate of analysis:
| KP-10 | KP-54 | |
| Chain length | 10 amino acids | 54 amino acids |
| Expected mass | ≈ 1,302 Da | ≈ 5,857 Da |
This reference is KP-10: the mass measured on the COA should fall around 1,302 Da.
Why choose NEXUS Kisspeptin-10
- Third-party verified purity: every batch is HPLC-tested by an independent laboratory, and the certificate of analysis (COA), which reports the measured mass, is available before ordering.
- Verifiable identity: the expected mass (≈ 1,302 Da) is on the COA — you can check it before even opening the vial.
- Shipped from France: parcel prepared within 24 business hours, delivered in 2 to 5 business days in France and 8 European countries. Free shipping from €120.
- Consistent quality: same supplier, same controls, same packaging from batch to batch.
- Verified reviews: our customers leave their feedback on Trustpilot; we do not edit them.
Reconstitution and handling
The lyophilisate is reconstituted with bacteriostatic water, which contains benzyl alcohol and therefore keeps the solution preserved after opening.
Add the solvent slowly down the vial wall, let it run, then swirl gently: no vigorous shaking, no vortex — shear denatures peptides. The solvent volume never changes the mass in the vial, only the resulting concentration. Our reconstitution calculator gives the concentration for any volume.
Storage
Lyophilized powder: -20 °C or below, protected from light and moisture; stable for years when unopened. After reconstitution: 2–8 °C, protected from light, with a reference shelf life of 28 days. For longer storage, frozen aliquots are preferable to repeated freeze-thaw cycles.
Common laboratory mistakes
- Comparing two "kisspeptins" without checking the mass. KP-10 (≈ 1,302 Da) and KP-54 (≈ 5,857 Da) are not the same molecule.
- Using plain sterile water for a vial that will be opened several times. Without a preservative, the solution is no longer protected once the stopper has been pierced several times.
- Vortexing the vial or repeatedly refreezing the solution. Shear denatures the peptide and each freeze-thaw cycle degrades a fraction of it. Aliquot as soon as it is reconstituted.
- Leaving the vial open to room air. The lyophilisate is hygroscopic: close it at once and return it to the cold.
Frequently asked questions
Are Kisspeptin-10 and Kisspeptin-54 the same product?
No. KP-10 is the short 10-amino-acid form, KP-54 the long 54-amino-acid form. This reference is KP-10, as its mass of about 1,302 Da confirms.
How can I check it is KP-10?
By the mass: about 1,302 Da for KP-10, about 5,857 Da for KP-54. The value is on the certificate of analysis.
What should I check on the certificate of analysis?
HPLC purity of at least 99% and the measured mass, expected around 1,302 Da. Each batch's COA is available from the Quality page and on request before ordering.
What should this peptide be reconstituted with?
Bacteriostatic water, which contains benzyl alcohol and keeps the solution preserved after opening. Plain sterile water is unsuitable once the vial is pierced more than once.
How long does the reconstituted solution keep?
28 days at 2–8 °C, protected from light. Beyond that, frozen aliquots are preferable to repeated freeze-thaw cycles.
Where is the order shipped from, and how fast?
From France, within 24 business hours. Delivery to a pickup point or home in 2 to 5 business days depending on the country. Free from €120.
In what context may this product be used?
Exclusively for laboratory and in vitro research, by qualified personnel. It is not intended for human or animal consumption, nor for diagnostic or therapeutic use.
NEXUS Quality Standard
Every NEXUS research compound is produced under strict quality control procedures. Each batch undergoes independent analytical testing to verify identity, assay accuracy, purity, microbial safety, endotoxin levels, heavy metal screening, and full batch traceability.
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For laboratory research only. Kisspeptin 5mg is not suitable for human or animal consumption. Not a drug, food or cosmetic. To be handled by qualified personnel in accordance with applicable regulations.