Kisspeptin Australia: Buy Kisspeptin-10 Online

Shop Kisspeptin Peptide in 5 mg and 10 mg Vials With Lot Data

Order Kisspeptin for KISS1R signalling work in two fills, 5 mg for method development and pilot curves or 10 mg for steady use at a lower cost per milligram. Both are in stock in Australia with a certificate for every lot.

What Is Kisspeptin?

Kisspeptin is a natural brain peptide that acts as the master switch for the reproductive hormone system, telling the neurons that make GnRH when to fire. Without a working kisspeptin signal, puberty does not start. Our vial contains kisspeptin-10, the short synthetic form that carries the full signalling end of the natural hormone.

Kisspeptin signalling, step by step

Its receptor, KISS1R, couples to Gq. Binding activates phospholipase C, calcium rises, and GnRH neurons depolarise and fire, sending a burst of GnRH into the portal blood that reaches the pituitary. Two groups of kisspeptin cells in the hypothalamus run this. In the arcuate nucleus, the so-called KNDy neurons co-release kisspeptin with neurokinin B and dynorphin, the first speeding the rhythm up and the second slowing it down, and that push and pull is now regarded as the generator of the GnRH pulse. In rodents a second population near the third ventricle drives the large hormone surge that precedes ovulation.

The odd name has a plain origin. The gene was found in Hershey, Pennsylvania, and its discoverers named it after the town's best-known product, the chocolate kiss. Only years later did the peptide turn out to matter more to reproduction than to the cancer spread it was first studied for.

What studies have shown

Human physiology work has been surprisingly direct. In a 2011 study by George and colleagues in healthy men, kisspeptin-10 proved a potent stimulator of luteinising hormone, and a steady infusion lifted LH pulse frequency from about 0.7 to 1.0 pulses an hour. At higher infusion rates the individual pulses became impossible to distinguish.

That last detail points to the trap we see most often. Kisspeptin works best in pulses, and continuous exposure can turn the system off rather than on. Seminara's group demonstrated this in juvenile male rhesus monkeys: a constant infusion of the decapeptide first stimulated the axis, then the receptor desensitised and the LH response faded. So a culture or slice experiment that bathes cells in kisspeptin for hours may be studying tachyphylaxis without meaning to. Our recommendation is to decide at the outset whether the question concerns acute activation or prolonged exposure, and to design washouts or intermittent pulses accordingly. For a lab weighing the kisspeptin peptide against other neuroendocrine tools, the oxytocin research peptide covers a separate hypothalamic receptor system.

Buy Kisspeptin Online in Australia, the KISS1R Ligand

The kisspeptins are a family of fragments cut from the KISS1 precursor, 54, 14, 13 and 10 residues long. Researchers in Hershey, Pennsylvania identified the gene in 1996 while looking for suppressors of cancer spread, which is why kisspeptin-54 was first named metastin. Every form ends in the same ten residues, and that stretch carries the binding to the receptor. In 2003 two groups linked mutations in the receptor, GPR54, to absent puberty, and kisspeptin became known as a gatekeeper of the reproductive axis.

Shop kisspeptin-10 here, the shortest form with full receptor activity and the one most used at the bench. In the sequence studied, kisspeptin activates KISS1R on hypothalamic GnRH neurons, GnRH release follows, and the pituitary then releases luteinising hormone and follicle-stimulating hormone. Labs use it to probe that chain in cells, tissue and animal models. It is a research reagent, not a medicine, and appears in our melanocortin and reproductive peptides range and among the nootropic peptides.

Kisspeptin in Australia: The Vial, Its Origins and Where It Stands

Under the orange flip-off cap sits kisspeptin-10 alone, a small plug of white lyophilised powder in either the 5 mg or 10 mg fill, with none of the longer kisspeptin forms mixed in. Unlike most peptides on this site, kisspeptin is not a synthetic drug candidate at all but a fragment of a natural human hormone, and it moved from cancer biology to endocrinology within a decade of the gene's discovery. Clinical groups in the United Kingdom and elsewhere have since given kisspeptin to volunteers in physiology studies and fertility trials, yet no regulator has approved a kisspeptin medicine, and no product containing it is registered in Australia.

That leaves an unusual legal picture. As of October 2026, kisspeptin is not named anywhere in the Poisons Standard (June 2026 instrument), unlike the growth hormone peptides we stock, and the TGA's product information database holds nothing under that name. The standard does carry a general Schedule 4 entry for hypothalamic releasing factors, and whether that wording reaches a peptide acting upstream of GnRH is a question for the TGA rather than for a supplier, so we make no claim that kisspeptin is unscheduled. Research suppliers remain the practical source for kisspeptin Australia labs can obtain, simply because no pharmaceutical version exists.

Sport is clearer. Because kisspeptin sits upstream of LH in the reproductive cascade, WADA's 2026 Prohibited List bans kisspeptin and its agonist analogues for male athletes under class S2.1, alongside chorionic gonadotrophin and GnRH agonists, and Sport Integrity Australia applies that rule.

If you want to buy kisspeptin peptide in Australia for receptor or reproductive axis work, both fills are ready to order from our local stock, supplied to adults aged 18 or older as reagents for experiments, not for administration to humans or animals. A neighbouring hypothalamic tool is the 10 mg oxytocin vial, which acts on its own receptor, OXTR, rather than KISS1R.

Order Kisspeptin Peptide for Sale in 5 mg or 10 mg to Match Your Throughput

Order the 5 mg vial at $45, or $9.00 per milligram, for a first concentration-response curve in KISS1R-expressing cells, a short pilot or a project where work may pause. The 10 mg vial at $69 drops to $6.90 per milligram and suits established protocols that use material steadily. Since kisspeptin-10 is active at nanomolar concentrations in cell assays, either fill covers a long run of experiments. Pulse-style designs, which repeat short exposures, use more material over time and generally favour the larger vial.

Buy several vials in a single order to keep a study on one lot wherever stock allows and one certificate, removing a batch change from your list of variables. Kisspeptin is sold exclusively to adults aged 18 and over.

Buy Kisspeptin-10 With the Amide, Mass and Purity Checked

The C-terminal Arg-Phe-NH2 is the feature that matters most, because the amide is required for receptor binding and gives kisspeptin its place in the RF-amide peptide family. A batch that lost the amide would carry a free acid instead and show a mass about 1 dalton higher, a small but telling shift. Tryptophan and tyrosine in the chain give strong UV absorbance and are also the residues most prone to oxidation.

Shop with the certificate open and confirm a measured mass matching 1302.4 g/mol, one main HPLC peak and a purity figure tied to your lot. Certificates are published in the COA library by lot number, and the guide on how to read a COA explains each result. Mass data also separates kisspeptin-10 from longer forms such as kisspeptin-13 or kisspeptin-14, which carry extra N-terminal residues and weigh considerably more.

Order Kisspeptin Online for Delivery Near You and Store It Away From Light

Kisspeptin is rarely stocked locally, and AminoBlend has no shopfront either. The store is online only and ships to every Australian address from local stock, and orders paid before 3pm on a business day go out the same afternoon, as described under delivery information. Labs ordering research peptides on the Gold Coast receive the same certified lots.

Let the vial reach room temperature before opening, add diluent slowly against the glass, then rotate the vial so the solvent rinses the walls and collects all the powder. Adding 2.5 mL of bacteriostatic water to the 10 mg vial gives 4 mg/mL, or roughly 3.1 mM at 1302.4 g/mol, and the peptide calculator handles other volumes.

Store the sealed vial at -20 °C protected from light and moisture, which spares the tryptophan and tyrosine. After mixing, keep the solution at 2 to 8 °C in aliquots, each thawed once.

Other Names for Kisspeptin

Kisspeptin-10 also appears as KP-10, Kp-10, metastin 45-54 and by its one-letter code YNWNSFGLRF-NH2. Longer relatives are kisspeptin-54, formerly metastin, and kisspeptin-14 and kisspeptin-13. The receptor goes by KISS1R, GPR54 and AXOR12 in older papers, and the neurons that produce kisspeptin in the hypothalamus are often called KNDy neurons. The product sold here is the decapeptide, CAS 374675-21-5. Some kisspeptin peptide catalogues also list it as the human metastin fragment.

Order Kisspeptin or Oxytocin by the Receptor You Study

Both are hypothalamic neuropeptides, but they act at different points. Kisspeptin works upstream of GnRH, so it is the tool for questions about the reproductive axis, puberty timing models and pulsatile hormone release. Oxytocin, a cyclic nonapeptide acting on OXTR, suits social behaviour, stress-axis and smooth muscle preparations. Buy kisspeptin when the readout is LH or GnRH, oxytocin when it is OXTR signalling, and both when a study crosses the two systems. Both peptides end in an amidated C-terminus, so the same care over storage and mass checks applies to each.

Labs working on central melanocortin signalling sometimes add PT-141, which acts on a separate receptor family.