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Kisspeptin: Hormone / Fertility research guide
In short: Kisspeptin-10 is the C-terminal decapeptide of the KISS1 gene product that activates KISS1R (GPR54) on hypothalamic GnRH neurons, the master upstream trigger of the reproductive (HPG) axis. It is studied in preclinical (cell and animal) research and is supplied strictly for laboratory use, not for human or clinical use.
Not medical advice. Kisspeptin is a research compound. This guide does not provide dosing, diagnosis, therapy recommendations, or claims about effects in humans.
Kisspeptin at a glance
What to know first
Details and limits sit in the sections below. Research use only.
What Kisspeptin is
Kisspeptin-10 is the ten-amino-acid business end of the KISS1 gene product — the single most potent natural trigger of the reproductive hormone axis, acting one step upstream of GnRH itself.
One-paragraph overview from our research datasheet. Still scientific, but faster to read than the full mechanism list below.
Kisspeptin-10 is the C-terminal decapeptide of the KISS1 gene product that activates KISS1R (GPR54) on hypothalamic GnRH neurons, the master upstream trigger of the reproductive (HPG) axis.
Research contexts
Peer-reviewed papers discuss Kisspeptin in specific lab settings. The points below reflect research questions, not health claims.
Research vs. personal use: Literature describes experiments in cells and animals. That is distinct from real-world use. Our products are for laboratory research only.
Typical study contexts
Why Hormone / Fertility research matters
These compounds show up in tissue-injury and wound models. Studies track cell movement, blood-vessel support and inflammation balance. They do not replace medical care.
Mechanisms (technical review)
Our datasheet lists mechanistic themes from preclinical work. These are research endpoints, not health claims.
Lab handling & preparation
Common Questions People Are Asking
What is kisspeptin and how does it work?
Kisspeptin-10 is the active C-terminal decapeptide of the KISS1 gene product (metastin). It works by binding KISS1R (GPR54), a Gq/11-coupled receptor on hypothalamic GnRH neurons, triggering phospholipase-C signalling and a calcium rise that makes those neurons fire and release GnRH. That GnRH pulse then drives pituitary LH and FSH secretion, placing kisspeptin at the very top of the reproductive hormone cascade.
How is kisspeptin different from a GnRH agonist?
A GnRH agonist acts directly on the pituitary side of the cascade. Kisspeptin acts one step earlier, on the GnRH neurons in the hypothalamus that release GnRH in the first place. That upstream position is why researchers use it to study the natural, physiological control of the reproductive axis rather than overriding it.
What does the human research actually show?
Controlled human physiology studies report that exogenous kisspeptin raises circulating LH (mean increase ~2.75 IU/L in one trial) and, more modestly, FSH, without altering downstream estradiol, progesterone or testosterone over short study windows. Randomised clinical trials in men and women with hypoactive sexual desire disorder also found that kisspeptin modulated activity in sexual-processing brain networks. These are published research findings, not human-use claims — kisspeptin is supplied for laboratory research only.
What is the difference between kisspeptin-10 and kisspeptin-54?
Kisspeptin-54 (metastin) is the full-length peptide; kisspeptin-10 is its C-terminal ten-amino-acid fragment. Both bind the same KISS1R receptor through the shared C-terminal sequence. Kisspeptin-10 is shorter and shorter-acting (a circulating half-life on the order of minutes), while kisspeptin-54 circulates longer, which is why studies pick one or the other depending on whether they need a brief pulse or sustained exposure.
Why is kisspeptin also called metastin?
The KISS1 gene was originally discovered as a metastasis-suppressor gene, and its product was named metastin before the reproductive role of its receptor (GPR54/KISS1R) was understood. Kisspeptin and metastin refer to the same molecule.
How does kisspeptin compare with hCG as a reproductive-axis tool?
They act at opposite ends of the same axis. Kisspeptin acts at the top, on hypothalamic GnRH neurons, recruiting the body's own LH/FSH release in a physiological way. hCG acts at the bottom, directly on the gonad via the LH/CG receptor, mimicking the LH surge. Researchers choose kisspeptin to study upstream, natural control and hCG to drive direct gonadal stimulation.
How should kisspeptin be stored and handled?
Keep the lyophilised powder frozen at −20 °C. After reconstitution with bacteriostatic water, refrigerate at 1–6 °C and protect from light. As with most research peptides, avoid repeated freeze-thaw cycles of the reconstituted solution. This is laboratory handling guidance only.
Is this page medical advice? Can I use Kisspeptin for my health?
No, and no. This article is educational only. We do not provide dosing, medical recommendations, or health claims. Our products are sold strictly for laboratory research, not for personal use of any kind.
Where do I find Kisspeptin specs, purity certificates and pricing?
Open the shop listing via “View product details.” There you will see batch specs, the Certificate of Analysis (COA), concentration, purity grade, and available SKUs with current pricing.
Related peptide guides
Other compounds researchers often read about alongside Kisspeptin.
Scientific sources & further reading
Primary literature and registries for Kisspeptin, plus mainstream coverage of the peptide category. Research use only - not medical advice.
Databases & literature:
Peptides in the news:
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Also known as: Kisspeptin-10, KP-10, Metastin (45-54), KISS1, GPR54/KISS1R Agonist, Metastin C-Terminal Decapeptide
PRECISION. PURITY. PERFORMANCE.
Research peptides at >99% HPLC-verified purity, third-party tested by Janoshik Analytical & Freedom Diagnostics, with Certificates of Analysis published per released batch. Supplied strictly for laboratory research use.
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