Name: PT-141 (Bremelanotide) 10mg
Brand: Imperial Peptides
SKU: IMP-9184
Price: 28.00 USD
Availability: InStock

PT-141 (Bremelanotide) at a glance

Bremelanotide, widely known by its development code PT-141, is a cyclic heptapeptide with the formula C50H68N14O10 and a molecular weight of 1025.2 g/mol. It is a close relative of Melanotan II: the two share a lactam-bridged ring, but bremelanotide ends in a free carboxylic acid where Melanotan II carries an amide. Palatin Technologies developed it after observations made during Melanotan II research pointed toward effects on sexual function.

Price and availability

A single 10mg vial from Imperial Peptides, shipped from Australia. The price is $28.00, or $2.80 per milligram of peptide. 13 brands sell PT-141 (Bremelanotide) on GLP1 Forum Escrow, with a typical price of $0.57–$2.80 per mg (median $0.60); this listing is inside that range. Funds stay in escrow and are released to Imperial Peptides only when you mark the order as received.

This listing: Imperial Peptides PT-141 (Bremelanotide)

Brand: Imperial Peptides
Also sold by: Jinlu Peptides 10mg $171.00 · BioPepta 10mg $57.00 · European Peptide Sciences 10mg $300.00 · SSRBIO 10mg $57.00 · Lianhua Peptide Co. 10mg $57.00 · Sulan Bio 10mg $60.00

Lab testing

Imperial Peptides published a Janoshik #208632 report for this compound. Test: Purity & Content (HPLC). Result: 99.62% purity · 11.70 mg. Tested Jul 27, 2026. Verification key NY9NCQFGKEMJ can be checked at janoshik.com.

View the report · How to read it (Testing 101) · Every report for this compound

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

What it is studied for

PT-141 is described as an agonist at several melanocortin receptors, with interest centered on MC4R and, to a lesser degree, MC3R in the brain. MC4R neurons in the hypothalamus and connected circuits are thought to influence motivation and sexual responses, and bremelanotide's effects are generally attributed to that central route rather than to direct action on blood vessels. It retains some MC1R activity, which has been linked to localized skin darkening reported in clinical studies, where nausea and transient blood-pressure rises were also documented.

Research and regulatory status

Bremelanotide is approved by the US FDA as a prescription medicine for acquired, generalized hypoactive sexual desire disorder in premenopausal women, on the basis of late-stage clinical trials. An earlier intranasal version was halted over blood-pressure findings. Outside that approved use, researchers employ the peptide to probe melanocortin pathways in appetite and behavior. Material sold for research is a separate preparation and has no connection to the approved product's regulatory status.

Checking the lab data

Mass spectrometry should show a mass consistent with 1025.2 g/mol. Because PT-141 and Melanotan II differ only at the C-terminus, about one mass unit apart, a high-resolution measurement or a reference retention time helps rule out mislabeled material. HPLC purity should be reported from a lot-specific trace. The lyophilized cake is typically white and compact. Look for an independent lab, a test date and a batch number on the report.

An independent lab report is attached to this listing, and the panel above shows the measured result next to the labelled amount.

Listing details

Compound: PT-141 (Bremelanotide)
Synonyms: Bremelanotide
Class: Melanocortin receptor agonist
Format: Lyophilized (freeze-dried) powder
Molecular formula: C50H68N14O10
Molecular weight: 1025.2 g/mol
Vial strength: 10mg
Total content: 10 mg
Price per mg: $2.80
Sold by: Imperial Peptides
Ships from: Australia
Lab report: Independent report attached

Storage and preparation

Freeze-dried peptide keeps best sealed, cold and dark. Once it has been dissolved, refrigerate it, avoid repeated warming and follow the stability limits in your study protocol.

Concentration arithmetic: one 10 mg vial dissolved in 2 mL gives 5 mg/mL, or 10 mg/mL in 1 mL. The Research Lab calculator in your dashboard handles any other volume.

Buyer questions

Why is PT-141 described as acting centrally?

Studies place its main site of action at melanocortin receptors in the brain, particularly MC4R in hypothalamic circuits, rather than at vascular smooth muscle. That distinguishes it from compounds that work by changing blood flow, and it is why bremelanotide research sits within neuroscience as much as reproductive medicine.

Can a lab report tell PT-141 apart from Melanotan II?

Yes, if the method is precise enough. The two peptides have nearly identical sequences, but the free acid in PT-141 versus the amide in Melanotan II produces a small mass difference and usually a shift in HPLC retention time. A report that lists both observed mass and retention gives better assurance.

How much PT-141 (Bremelanotide) is in this listing?

One vial of 10mg. Where a lab report exists, the testing panel above shows the measured content of the tested sample.

What if the parcel never arrives?

Open a claim from your order page. The payment is still in escrow at that point, so a claim decided in your favour is refunded to your Escrow Wallet.

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.