HPLC ≥99% · Mass-spec confirmed · Lot-matched COA
Cosmetic Research
Melanotan II 10mg
Melanotan II is an investigational synthetic peptide analog of alpha-melanocyte-stimulating hormone (α-MSH) being studied for its effects on pigmentation and libido.
- SKU
- MELANOTAN_II_10MG
- Form
- Lyophilized powder
- Contents
- Pack of 1
- Purity
- ≥99%
- CAS
- 121062-08-6
- MW
- 1024.18 g/mol
- Formula
- C50H69N15O9
Storage: lyophilized −20°C · reconstituted 2–8°C, protect from light
Select size
Price
$49.99
In stock · ships in 24h
HPLC tested
Lot-matched COA
US ships in 24h
Melanotan II (MT-II) is a synthetic cyclic peptide that is a potent non-selective agonist of melanocortin receptors (MCRs), specifically MC1, MC3, MC4, and MC5 receptors. Its structure is a cyclic heptapeptide analog of the naturally occurring α-MSH. This peptide was originally developed in the 1980s at the University of Arizona as a potential agent for stimulating melanogenesis, leading to skin darkening.
Mechanism of Action
Melanotan II primarily exerts its effects by activating melanocortin receptors. Activation of the MC1 receptor, expressed on melanocytes, stimulates the production of melanin. This increase in melanin leads to skin pigmentation, offering a potential protective mechanism against UV radiation in research models. Activation of the MC3 and MC4 receptors, which are abundant in the central nervous system, is believed to mediate its effects on appetite, libido, and erectile function observed in some investigational studies.
Research Areas
Primary research areas for Melanotan II have focused on its potential in stimulating melanogenesis as a photoprotective agent, particularly in individuals susceptible to skin damage from UV exposure. Beyond pigmentation, investigational studies have also explored its role in sexual function, specifically in addressing certain types of sexual dysfunction in research models due to its interaction with central melanocortin pathways. Furthermore, some studies have briefly touched upon its impacts on metabolism and appetite, although these areas are less extensively researched compared to its effects on pigmentation and sexual function.
Notable Peer-Reviewed Findings
Research has demonstrated that Melanotan II effectively stimulates melanin production, leading to increased skin pigmentation in various models. Studies have also reported its capacity to induce erections and influence sexual behavior, highlighting its potential through central melanocortin receptor activation. Animal studies suggest effects on energy homeostasis, such as reducing caloric intake and body weight, although further investigation is needed to fully understand these mechanisms and their clinical relevance in human research.
Cosmetic Research
Cosmetic research applications
Studied in skin, hair, and pigment-cell models for effects on melanogenesis, collagen synthesis, and dermal repair.
- Melanocyte activity and MC1R/MC4R receptor pathway studies
- Fibroblast collagen-I/III and elastin expression assays
- UV-damage and photoaging protective endpoints in 3D skin models
- Hair-follicle dermal-papilla and pigment-research protocols
For laboratory research use only · not for human or veterinary use
Researcher reviews
No reviews yet — be the first.
Melanotan II 10mg
$49.99


