We offer peptides for sale as Bremelanotide 28 mg/pen, 1.3ml pen. Bremelanotide, known in research as PT-141, is a synthetic melanocortin receptor agonist. Spectrum Pharma supplies it as a 28 mg prefilled pen with a 1.3 mL dual-chamber cartridge. It is a peptide that acts in the central nervous system, which places it in a different class from the vasodilator drugs usually associated with sexual function.
Brain-first, not blood-flow-first
PDE5 inhibitors such as sildenafil work by relaxing vascular smooth muscle, and they depend on the circulatory system to produce their effect. Bremelanotide does not touch that enzyme. It activates MC3R and MC4R in hypothalamic circuitry associated with sexual desire, so the mechanism runs through arousal signalling rather than through blood flow. That difference is why the drug is discussed in terms of motivation and interest as well as physical response. The molecule is a cyclic heptapeptide analogue of alpha-MSH, and the ring structure slows its breakdown compared with the natural hormone. Melanotan II belongs to the same receptor family but is a different molecule with a different activity balance; the two are not substitutes for one another by milligram, and the prefilled pen format changes how a dose is measured and delivered rather than what the peptide is.
Reading the 28 mg label
That figure describes the whole pen, not the amount at any one dial setting. Device instructions govern delivery, and the cartridge volume is a separate specification from the dose. Blood pressure can be affected by melanocortin agonists, a point the product information notes. Keep the pen refrigerated at 2–8°C and never freeze it.
Original product and manufacturer verification
When you buy PT-141 from IronJuice Shop, you receive an original product supplied directly by its manufacturer.
Frequently Asked Questions
What is the active substance in Bremelanotide 28 mg/pen, 1.3ml pen?
Bremelanotide, known in research as PT-141, is a synthetic melanocortin receptor agonist.
What mechanism should I understand before I buy PT-141?
Bremelanotide acts at melanocortin receptors, including MC3R and MC4R. PDE5 inhibitors such as sildenafil work by relaxing vascular smooth muscle, and they depend on the circulatory system to produce their effect.
What structural or composition features are described for peptides for sale?
The molecule is a cyclic heptapeptide analogue of alpha-MSH, and the ring structure slows its breakdown compared with the natural hormone.
Which related-substance distinctions matter for peptides for sale here?
Melanotan II belongs to the same receptor family but is a different molecule with a different activity balance; the two are not substitutes for one another by milligram, and the prefilled pen format changes how a dose is measured and delivered rather than what the peptide is.
Which names identify the PT-141 for sale offered here?
This product is sold as Bremelanotide 28 mg/pen, 1.3ml pen.
Which product form is offered within your range of PT-141 for sale?
Spectrum Pharma supplies it as a 28 mg prefilled pen with a 1.3 mL dual-chamber cartridge.
What amount is supplied with the PT-141 for sale offered here?
28 mg of bremelanotide in a 1.3 mL dual-chamber cartridge.
How can I check authenticity if I buy PT-141 online?
Check the product's authenticity code on the manufacturer's official website after receipt. Keep the code with the batch and expiry details. The peptides for sale here are supplied directly by their manufacturers.
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