PT-141 (Bremelanotide) (10mg)

(39 customer reviews)


PT-141 peptides are Synthesized and Lyophilized in the USA.

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SKU: PT-141-10mg Category:


PT-141 (Bremelanotide) Peptide

PT-141, also known as Bremelanotide, was derived from a synthetic melanocortin analog known as Melanotan 2 (MT-2). A melanocortin analog, such as PT-141 and MT-2, is considered to be any synthetic compound designed to mimic or influence the functions of natural melanocortin peptides. These peptides, such as the alpha-melanocyte stimulating hormone (α-MSH), may be involved in a range of physiological processes including appetite regulation, energy homeostasis, immune responses, and skin cell pigmentation. PT-141 is a melanocortin analog that was developed to interact with Melanocortin-4 Receptor (MC-4R). It has been studied for a variety of potential characteristics and bioactivities through its interaction with this receptor. Apart from MC-4R, there are other melanocortin receptors like MC-1R, MC-2R, MC-3R, and MC-5R, each associated with different potential functions. For instance, MC-1R may be primarily involved in skin cell and hair follicle pigmentation, MC-2R appears to play a crucial role in the adrenal axis and stress response, MC-3R is implicated in the regulation of energy homeostasis, and MC-5R has been linked to exocrine function and thus impacts processes such as sweating and sebum production.


Other Known Titles: Bremelanotide

Molecular Formula: C50H68N14O10

Molecular Weight: 1025.2 g/mol

Sequence: Ac-Nle-Asp(1)-His-D-Phe-Arg-Trp-Lys(1)-OH

PT-141 Peptide Research

PT-141 Peptide (Bremelanotide) and the Melanocortin-4 Receptors
PT-141 appears to uniquely stimulate the MC-4R, which may trigger cascades in the central nervous system which impact the brain region that controls reproductive and copulatory behavior.[1] The researchers suggest that “The erectogenic potential of PT-141, its tolerability profile and its [potential] to cause significant erections in [cases that otherwise] do not have an adequate response to a PDE5 inhibitor suggest that PT-141 may provide an alternative [avenue for ED research].” Studies in mice agonist binding to MC-4R reported sexual arousal and increased copulation activity in both males and females.[2] The mechanism of PT-141 appears to be different from compounds that manage blood flow to the genitals.[3][4] Researchers suggest that MC-4R agonism, potentially combined with existing modalities, may encourage both physiological and psychological alterations. In a meticulously designed study, researchers conducted a randomized, double-blinded, placebo-controlled, crossover clinical trial to explore the potential stimulation of the Melanocortin-4 receptor on neural pathways involved in sexual processing. Initial findings suggest that PT-141 as an agonist may potentially enhance sexual desire for a duration up to 24 hours, in comparison to a placebo. During the functional neuroimaging segment of the study, there was an apparent increase in activity observed in the cerebellar and supplementary motor areas. These regions are deemed crucial for motor control and planning. Conversely, there was a possible reduction in activation within the secondary somatosensory cortex, an area involved in processing sensory information, specifically when under the influence of visual stimuli, differing from responses observed with the placebo. Additionally, it was theorized that MC-4R agonists like PT-141 might enhance the functional connectivity between the amygdala, a key region in emotion regulation, and the insula, which is involved in perception and emotional responses, during exposure to the stimuli. This was in contrast to the actions noted with the placebo. These preliminary observations led researchers to suggest that MC-4R agonists could potentially enhance the neural processing associated with sexual arousal and behavior.

PT-141 Peptide (Bremelanotide) and Cavernous Tissues
Despite suggestions that the mechanism of PT-141 appears to be different from compounds that manage blood flow to the genitals, some scholars propose that compounds classified as melanocortin agonists, such as PT-141, might exhibit properties conducive to inducing erections by influencing the concentrations of vasodilators within specific tissues.[5] Research has explored the possible involvement of the nitric oxide (NO)-cyclic guanosine monophosphate (cyclic GMP) pathway in the action of melanocortin agonists on erectile function. This pathway is posited as pivotal in many processes, including the regulation of vascular tone and blood flow within cavernosal tissues. One particular study investigated this by conducting experiments where the pudendal nerves, which are considered vital for erectile function, were bilaterally transected, and nitric oxide synthase (the enzyme responsible for producing NO) was blocked using a specific inhibitor known as L-NAME.[5] The findings from these experiments suggested that disrupting the pudendal nerves or inhibiting nitric oxide synthesis might potentially diminish the Melanocortin-agonist-induced increases in pressure within cavernosal tissues, observed in anesthetized mouse models. These tissues are deemed key structures involved in achieving an erection due to their role in trapping blood within the cavernosal tissues. Consequently, the data cautiously suggest that activating central melanocortin receptors with melanocortin agonists like PT-141 may lead to enhanced cavernosal pressure, presumably through the enhanced release of NO by neurons, although this mechanism remains speculative and requires further confirmation.

PT-141 Peptide (Bremelanotide) and Cell Survival
The MC-1R receptor may be an important stimulus of DNA repair pathways, and is of relevance in cell survival.[6] The scientists reported that “MC1R signalling activates antioxidant, DNA repair and survival pathways.” PT-141 retains some MC-1R activity, despite being biased towards MC-3Rs and MC-4Rs.

Disclaimer: The products mentioned are not intended for human or animal consumption. Research chemicals are intended solely for laboratory experimentation and/or in-vitro testing. Bodily introduction of any sort is strictly prohibited by law. All purchases are limited to licensed researchers and/or qualified professionals. All information shared in this article is for educational purposes only.



  1. Rosen RC, Diamond LE, Earle DC, Shadiack AM, Molinoff PB. Evaluation of the safety, pharmacokinetics and pharmacodynamic effects of subcutaneously administered PT-141, a melanocortin receptor agonist, in healthy male subjects and in patients with an inadequate response to Viagra. Int J Impot Res. 2004 Apr;16(2):135-42. doi: 10.1038/sj.ijir.3901200</>. PMID: 14999221.
  2. Rössler AS, Pfaus JG, Kia HK, Bernabé J, Alexandre L, Giuliano F. The melanocortin agonist, melanotan II, enhances proceptive sexual behaviors in the female rat. Pharmacol Biochem Behav. 2006 Nov;85(3):514-21. doi: 10.1016/j.pbb.2006.09.023. Epub 2006 Nov 20. PMID: 17113634.
  3. Clayton AH, Althof SE, Kingsberg S, DeRogatis LR, Kroll R, Goldstein I, Kaminetsky J, Spana C, Lucas J, Jordan R, Portman DJ. Bremelanotide for female sexual dysfunctions in premenopausal women: a randomized, placebo-controlled dose-finding trial. Womens Health (Lond). 2016 Jun;12(3):325-37. doi: 10.2217/whe-2016-0018. Epub 2016 May 16. PMID: 27181790; PMCID: PMC5384512.
  4. Miller MK, Smith JR, Norman JJ, Clayton AH. Expert opinion on existing and developing drugs to treat female sexual dysfunction. Expert Opin Emerg Drugs. 2018 Sep;23(3):223-230. doi: 10.1080/14728214.2018.1527901. Epub 2018 Oct 11. PMID: 30251897.
  5. Pfaus, J. G., Shadiack, A., Van Soest, T., Tse, M., & Molinoff, P. (2004). Selective facilitation of sexual solicitation in the female rat by a melanocortin receptor agonist. Proceedings of the National Academy of Sciences of the United States of America, 101(27), 10201–10204.
  6. Maresca V, Flori E, Picardo M. Skin phototype: a new perspective. Pigment Cell Melanoma Res. 2015 Jul;28(4):378-89. doi: 10.1111/pcmr.12365. Epub 2015 Apr 11. PMID: 25786343.
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Biotech Peptides

39 reviews for PT-141 (Bremelanotide) (10mg)

  1. Liam Lewis

    Amazing product. I wll be back for more

  2. Liam Lewis

    I found this product to show visible results

  3. Kamari Clark

    Ive ordered twice so far and my bacteriostatic water was missing. Well, it was my fault for not having met the minimum purchase requirement but I was sent one free of charge and they even covered shipping. What more could I ask for. Thank you team at Bio

  4. Felix Stewart

    Great and fast customer service.

  5. Samuel B.

    I highly advise buying peptides from this particular company. They are very transparent

  6. London Wright

    I find this company and its products to be excellent.

  7. Jose Gonzalez

    very good

  8. Leigh Mueller

    Having a reliable peptide source in the United States is a huge blessing for me.

  9. Hayden Foster

    Not sure what happened but we got a few vials that were broken. My company has ordered products from here before with no issues so could be from shipping. They apologized and sent out new ones with overnight shipping. Also threw in a discount code for our next time.

  10. Jean-Carlo Lopez

    Servicio increíble!

  11. James Avenoso

    Please introduce a punch card or something or coupon codes. I’ve brought you a lot of clients and I would love to maybe get a 5% discount for every person using my code

  12. Christian Mendoza

    They have been out of stock of the paticular peptide I need for weeks now. So decided to call and see what was up. They we’re about to get some out shortly and just took my order and payment over the phone. Even threw in a discount because the wait was so long.

  13. Joe McConnell

    Taylor is magnificinet and truly knows their stuff. Anytime I have contacted them to correct something or if i have any questions they were always on top of it and had an answer.

  14. Geroge Salvini

    Had an issue where all my peptide vials came in either broken or completely degraded. Right away reached out to customer service as something went wrong from once it left the facility to ending up at my lab. They were kindhearted enough to put in a rush order for me free of charge and send in a discount code to use for the next few transactions. Now any peptide company could resend orders, but it was the “no problem” attitude and great CS that sets them apart for me.

  15. Matty Donovan

    Great supply of peptides. Like that they take different payment methods!

  16. Gabriel Miller

    Peptides have always come in great condition. I like that they always have the Pt-141 on stock anytime I need it!

  17. Ali Murphy

    I belive their products are one of the best in the market. Can count on them for good quality.

  18. Richard S.

    Great new company, excited to see how they grow.

  19. Declan Walker

    Best prices I have found for this particular peptide. Noticed a lot of your pricing is less that other places as well.

  20. dennis long

    Good source to get Peptides from.

  21. C. Carter

    Had a diffciult time with customs! As I live in Canada there was a whole ordeal with getting the peptides in time. What should have been a two day shipment turned into almost 2 weeks. At that point I knew there’s no way the peptides would be in good condition but I had hope. Low and behold my assumption was right and all the peptides went straight to waste. I contacted Biotech to let them know what was going on. Thankfully they were able to rush me a new order and this time no issues with customs.

  22. Jeremy Schablewski

    Service is unbeatble. The service reps always have an answer to my questions and know a lot about the products and the company itself.

  23. Chad Dela Cruz

    Could not believe how great the qulaity is for the price.

  24. Arthur McAllister

    Amazing company and products. Will buy again

  25. Marco Gonzalez

    great quality, Have ordered with them a few times, have not had a bad experince yet.

  26. Vinny Haley

    Peptides arrived on time. Used it for the first time and my research reacted well to it.

  27. Gavin Markowitz

    Nice selection of peptides, did not see a specific few that I was looking for however.

  28. Danny Williams

    I like how their customer service is always well informed and up to date on all the peptide information. Very helpful staff

  29. Dan Benaroch

    Ordering in bulk from them is so easy, compared to other places I have shopped before

  30. Gabriel Browndorf

    Products are pure. Top 5 peptide companies in my book.

  31. Henry Chan

    Found them off google, happy I did.

  32. Wendy Martinez

    I wish I could give this company more than 5 stars, great in every way

  33. Javier Laurent

    I find it pretty difficult to find this product online on other suppliers’ websites, but Biotech always has everything I need

  34. Edmond Amataj

    Good quality stuff for a great price, no complaints

  35. Danny Hendricks

    Research results are no different with any other peptide source, however the service and fast shipping is what makes biotech my supplier of choice.

  36. Jess Jiang

    Great stuff!

  37. Praneel Gulabrao

    Fantastic service on their end

  38. Mitchell Mauldin

    Been buying their products for months now and can say It’s the best place to get peptides from

  39. Geri Coleman

    I always recommend them to those doing peptide research. Clean and pure peptides as well as great customer service and prices.

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