Buy Melanocortin Peptides Australia: Melanotan II, PT-141 and Kisspeptin, the Best Peptide to Increase Testosterone in Research

Shop Melanocortin Peptides by Receptor

Shop this group by receptor. Melanocortins are hormones cleaved from a single precursor, pro-opiomelanocortin, and they act on five receptors numbered MC1R to MC5R. MC1R on melanocytes governs pigment output, whereas the central receptors MC3R and MC4R are tied to appetite, energy balance and sexual behaviour. The three melanocortin peptides here are synthetic analogues of alpha-MSH, designed to last longer than native alpha-MSH and to prefer certain receptors over others.

Buy Melanotan 1, known by the drug name afamelanotide, as a 10 mg vial for $49. It is a linear 13 residue analogue that leans on MC1R, and Clinuvel, a Melbourne company, led its commercial development. Melanotan II is a smaller cyclic peptide of seven residues with activity at MC1R, MC3R and MC4R, so it reaches the brain receptors as well as the pigment one. PT-141, or bremelanotide, is a Melanotan II derivative that prefers MC4R and MC3R over MC1R, and it holds a narrow approval in the United States. Put simply, Melanotan 1 suits selective pigmentation work, Melanotan II broader melanocortin pharmacology, and PT-141 the central pathways involved in arousal. Our Melanotan 1 vs 2 guide sets out the structural differences.

Order Melanotan II and PT-141 as Vials or Nasal Sprays

Order Melanotan II and PT-141 in either of two formats, a 10 mg lyophilised vial or a ready-mixed 10 mL nasal spray. Melanotan II costs $49 as a vial and $59 as a spray, and PT-141 costs $59 and $69. Bremelanotide was first trialled as an intranasal product before its developer switched to injection, which is one reason the spray format turns up in the literature. Pick the vial for control over concentration and the longest shelf life, and pick the spray when the design calls for an intranasal format with no preparation step, keeping it at 2 to 8 °C. Vials take bacteriostatic water, and the PT-141 calculator gives the resulting strength. Melanotan 1 and kisspeptin are supplied as vials only.

Buy Kisspeptin, the Best Peptide to Increase Testosterone in Research Models

Buy kisspeptin as a 5 mg vial for $45 or a 10 mg vial for $69. It belongs to a different peptide family, but labs studying reproduction and sexual behaviour often order it with PT-141, which is why it is grouped here. It works at the top of the reproductive axis, binding KISS1 receptors on the GnRH-releasing neurons of the hypothalamus. GnRH then drives luteinising hormone and FSH from the pituitary, and luteinising hormone in turn drives testosterone production in the testes. Work published in 2003 showed that people lacking a functional kisspeptin receptor never start puberty, and that result put the peptide at the centre of the field. For labs asking which is the best testosterone peptide for animal research, kisspeptin is the compound with a clear mechanism, since the melanocortins act on brain receptors rather than the hormone axis.

Shop the Right Melanocortin Peptide for Your Study

Shop by receptor before product. MC1R pigmentation studies suit Melanotan 1 for its selectivity, while Melanotan II gives a stronger pigment response in models but brings the central receptors with it. For desire and arousal pathways with less pigment interference, PT-141 is the cleaner tool, with Melanotan II as a comparator. For LH, FSH or testosterone readouts, and for puberty onset or fertility models, kisspeptin is the right vial, and one 10 mg vial at $69 costs less than two 5 mg vials. A design comparing action at the hormone level with action at melanocortin receptors would run kisspeptin against PT-141, with each compound kept in its own vial so the two effects stay separable. Order both arms at once so they share a delivery date and can be prepared side by side.

Buy Melanocortin Peptides Online in Australia

Buy with a mass check on file, because only one terminal group separates PT-141 from Melanotan II and the two can run close together on HPLC. AminoBlend sends every lot to an independent lab, where mass spectrometry verifies identity and HPLC records purity, and the lot code on each vial or spray bottle matches its report in the COA library. Orders with payment received before 3pm on a business day go out the same day by tracked post to anywhere in Australia.

Order bacteriostatic water for the vials in the same parcel. Australian regulators have issued warnings about unapproved Melanotan products marketed for tanning, and none of these compounds is TGA approved. They are sold for laboratory research only under our research use policy, never for tanning or any human use.

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