PT-141

What is PT-141 (Bremelanotide)?

PT-141 is a synthetic cyclic peptide derived from Melanotan II, differing by the absence of a C-terminal amide group. Its active form, bremelanotide, is the approved active ingredient in a prescription treatment for a specific female sexual-desire condition.

This listing is PT-141 (Bremelanotide) from Vital Edge Science (Australia & New Zealand), sold on Stairway to Gray with escrow: your payment is held until the order arrives and only then released to the brand.

How it is understood to work

Unlike Melanotan II’s broader melanocortin activity, PT-141 acts primarily through MC3 and MC4 melanocortin receptors in the hypothalamus, modulating central nervous system pathways involved in sexual desire and arousal rather than acting on peripheral vascular or pigmentation targets.

Research status

Clinical trials of bremelanotide have examined its effects on sexual-desire disorders and supported its approval as a prescription medicine in some markets; broader research also explores melanocortin receptor signaling in appetite and other CNS pathways. Research-grade material sold here is intended for laboratory study, separate from the approved pharmaceutical product.

Specifications

Compound

PT-141 (Bremelanotide)

Also known as

Bremelanotide

Class

Melanocortin receptor agonist

Form

Lyophilized (freeze-dried) powder

Molecular formula

C50H68N14O10

Molecular weight

1025.2 g/mol

Brand

Vital Edge Science · Australia & New Zealand

Handling & storage

Supplied as a lyophilized powder; store unopened vials at -20 C protected from light, and after reconstitution with bacteriostatic water keep refrigerated and use within the timeframe defined by the study protocol.

Questions

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.