Overview
Cosmetic-research peptides are studied for skin, collagen, and pigmentation-related signaling, often in in-vitro or topical-model contexts. This guide describes the researched mechanism and handling as research characterization, not a cosmetic-outcome claim.
A synthetic melanocortin receptor agonist (Melanotan II) studied for melanogenesis/pigmentation pathways.
Evidence at a glance: Includes human-trial data
The cited record for this compound includes human-trial data. Each claim below still states its study type and population, so the scope of that evidence stays explicit.
Molecular identity
- Molecular formula
- C50H69N15O9
- Molecular weight
- 1024.2 g/mol
- CAS number
- 121062-08-6
- Amino acids
- 7
- Appearance
- White lyophilized powder
- Purity (HPLC)
- 99%
Researched mechanism
Broad melanocortin receptor agonism studied for melanogenesis in pigmentation research.
Described as a mechanism characterized in the literature, not an effect you should expect from use.
What the published research shows
Melanogenesis effects characterized in research settings.
Every citation states its study type and population, so preclinical data is never presented as human-efficacy evidence.
How it compares
| Versus | Attribute | Note |
|---|---|---|
| PT-141 | Receptor emphasis | PT-141 emphasizes MC4R/central pathways; MT-2 is broader. |
Reconstitution
Concentration math only: adding bacteriostatic water to the vial gives the resulting mg/mL shown below. This is not usage guidance.
| Vial | Bacteriostatic water | Concentration |
|---|---|---|
| 10 mg | 2 mL | 5 mg/mL |
Storage & stability
| State | Temperature | Duration |
|---|---|---|
| Lyophilized (unopened) | -20°C | 24 months |
| Reconstituted | 2–8°C | up to 4 weeks |
Common questions
Is MT-2 the same as PT-141?+
Related melanocortin agonists with different receptor emphasis; see the comparison note.
