Hormone Peptides

Our hormone peptides are the neuropeptides labs use to study reproduction, bonding and the melanocortin system: PT-141 (bremelanotide), kisspeptin and oxytocin, each as a 10mg vial.

Looking for something else? See our growth hormone peptides and skin and tanning peptides, or browse all research peptides.

What are hormone peptides?

Kisspeptin sits at the top of the reproductive hormone chain. It acts on GnRH neurons in the hypothalamus, which then drive the release of LH and FSH. Oxytocin is a nine-amino-acid hormone made in the hypothalamus, studied for labor, milk release and social bonding.

PT-141 is a cyclic melanocortin agonist developed from Melanotan II. It acts on MC4 receptors in the brain and is approved in the US as Vyleesi.

For the published research behind this range, start with this PubMed search.

Hormone Peptides in our range

  • Kisspeptin-10: 10mg, $44.00
  • Oxytocin: 10mg, $58.00
  • PT-141: 10mg, $44.00

How to choose hormone peptides

Pick by the pathway in your model: kisspeptin for the GnRH, LH and FSH axis, oxytocin for oxytocin receptor work, PT-141 for central melanocortin signaling.

All three come as 10mg vials and in 5 and 10 packs, so a longer study doesn’t mean a lot of separate orders.

Hormone peptides: formats and prices

There are 3 products in this range: three single-compound vials. Single prices run from $44.00 to $58.00. All of them also come in a 5 pack (save 5%) and a 10 pack (save 10%), which you choose from the dropdown on the product page. Every product page lists the amount, the format and the SKU, so you can compare like for like before you order.

Lab testing for our hormone peptides

Most of our product pages carry an independent Janoshik Analytical test report right in the photos. Each report shows the compound the lab found, the measured amount and the HPLC purity, and it has a key you can enter at janoshik.com/verify to see the original. Where a report was run on a different size of the same compound, the product page says so.

Store sealed vials in the fridge, or the freezer for long-term storage, and reconstitute with our research diluent. Every vial page lists the concentration you’ll get for each volume.

Hormone peptides FAQ

Are your hormone peptides in stock?

Yes. Everything listed here is in stock now.

Are hormone peptides for human use?

No. Everything we sell is for laboratory research only and isn’t approved for human or veterinary use.

How do I pick a size?

Bigger vials cost less per milligram, and smaller ones make sense for short projects, since less sits open in the fridge. Each product page compares the sizes.

Can I buy in bulk?

Yes. Most products have a 5 pack that saves 5% and a 10 pack that saves 10%. Choose the quantity from the dropdown on the product page.

Do I need anything else?

Vials need a sterile diluent such as our research diluent. Tablets and the ready-made liquids don’t.

Buy hormone peptides online

Pick a product above, choose a single or a multi-pack and check out in a couple of minutes. Everything on this page is in stock. Add a research diluent vial to the same order and you’ll have everything you need to start.

For laboratory research use only. Not for human or veterinary use.

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