
Melanotan-2Research-Grade Peptide · Lab-Verified Purity
Melanotan-2 is the research peptide most known for stimulating pigment- producing cells — the melanocortin system. It's the parent compound that PT-141 (Bremelanotide) was later derived from. Both work on the same family of receptors but MT-2 covers a broader range of them.

Everything researchers need to know about Melanotan-2
Manufacturing, testing, handling, and shipping details for Melanotan-2. For research purposes only — not for human or animal consumption.
Melanotan-2 — Product Overview
Melanotan-2 is the research peptide most known for stimulating pigment- producing cells — the melanocortin system. It's the parent compound that PT-141 (Bremelanotide) was later derived from. Both work on the same family of receptors but MT-2 covers a broader range of them.
Melanotan-2 — Molecular Characteristics & Vial Specifications
ProSource Labs supplies Melanotan-2 in the following available vial sizes: 10mg. Each Melanotan-2 vial contains pure lyophilized peptide — no fillers, no bulking agents. Product SKU references: MT2-10MV10MG.
- Melanocortin Broad Agonist: Activates the full MC1R–MC5R receptor family
- Pigmentation Research: Best-known for stimulating melanin production in study models
- Parent of PT-141: The compound from which the more selective PT-141 was later derived
- Cyclic & Stable: Ring structure makes it much more durable than natural α-MSH
Batches are characterized by ESI mass spectrometry to confirm molecular weight against the theoretical value, with amino-acid sequence confirmation on selected QA lots. Peptide content assay distinguishes net peptide mass from residual counter-ion salt.
Melanotan-2 — Laboratory Handling & Storage
Lyophilized Melanotan-2 vials should be stored at -20°C (or colder) in a laboratory freezer, inside the sealed factory container. Minimize warm-up cycles — move only the specific vial needed for a given experiment out of frozen storage at a time.
All laboratory handling of Melanotan-2 should follow the receiving institution's SOPs and applicable peer-reviewed protocols relevant to the researcher's specific experimental question. ProSource Labs does not publish end-user preparation or usage instructions.
Melanotan-2 — Third-Party Analytical Testing
Every batch of Melanotan-2 released by ProSource Labs undergoes independent reverse-phase High Performance Liquid Chromatography (HPLC) — the industry-standard analytical method for this class of research compound. Target chromatographic purity is typically ≥ 99%.
Additional characterization may include ESI mass spectrometry for molecular weight confirmation, Karl Fischer titration for residual moisture, and appearance/solubility inspection. A batch-specific Certificate of Analysis (COA) is available on request through customer support after purchase.
Melanotan-2 — Quality Assurance Process
Each production lot of Melanotan-2 is quarantined pending analytical release, tested against documented purity, identity, and moisture acceptance criteria, and only released to sellable inventory after passing every QA checkpoint. Batches that fail any single criterion are quarantined and never reach customer-facing inventory.
If a vial of Melanotan-2 you received from ProSource Labs ever fails your own institution's incoming QA testing, contact customer support at support@prosourcelabs.org — we retain samples of every batch for cross-verification.
Melanotan-2 — Typical Research Application
Widely used in studies on the melanocortin receptor family (MC1R through MC5R) — pigmentation biology, appetite regulation, and sexual-behavior brain circuits are the most-studied areas.
Melanotan-2 — Packaging & Fast Southern California Shipping
Melanotan-2 vials ship in tamper-evident, moisture-resistant, cold-chain-friendly outer packaging from our Southern California distribution facility for fast US domestic delivery — typically 2-4 business days coast-to-coast, with expedited options available at checkout.
Every Melanotan-2 shipment is discreet — the outer packaging carries no product-specific branding or direct reference to the compound name inside, protecting researcher privacy. Tracking numbers are emailed automatically. For institutional or high-volume orders, dedicated wholesale pricing is available through the wholesale portal.
Our full FAQ covers ordering, wholesale, lab-verification, and customer support topics.
Explore related peptides
About Melanotan-2
What is Melanotan-2?
Melanotan-2 is the research peptide most known for stimulating pigment- producing cells — the melanocortin system. It's the parent compound that PT-141 (Bremelanotide) was later derived from. Both work on the same family of receptors but MT-2 covers a broader range of them.
What is Melanotan-2 used for in research?
Widely used in studies on the melanocortin receptor family (MC1R through MC5R) — pigmentation biology, appetite regulation, and sexual-behavior brain circuits are the most-studied areas.
How is Melanotan-2 verified?
Every Melanotan-2 vial ships with a batch identifier for full traceability back to its manufacturing lot, an HPLC purity report, and Certificate of Analysis (COA).
How should Melanotan-2 be stored?
Lyophilized Melanotan-2 is best stored refrigerated (2–8°C) or frozen (-20°C) for long-term stability. Once reconstituted, keep refrigerated and refer to peptide handling best practices.
Where does Melanotan-2 ship from?
All Melanotan-2 orders ship from ProSource Labs' Southern California facility with tracked domestic delivery.
Is Melanotan-2 intended for human use?
No. Melanotan-2 is supplied strictly for laboratory research applications and is not intended for and not approved for human or veterinary consumption.








