Shop Melanotan II 10mg from Eternal Peptides, a trusted supplier of research compounds known for rigorous purity and quality testing across every batch. Each 10mg lyophilized unit is independently verified by third-party labs and supplied with a Certificate of Analysis for full batch transparency. Competitively priced with fast, secure USPS shipping – free on orders over $200. Sold for research use only.
Melanotan II Peptide Characteristics
| Property | Description |
| Name | Melanotan II (MT-II); synthetic cyclic heptapeptide analogue of α-melanocyte-stimulating hormone (α-MSH) |
| Sequence | Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂ |
| Molecular Weight | 1024.2 g/mol |
| Molecular Formula | C₅₀H₆₉N₁₅O₉ |
| PubChem CID | 92432 |
| Structural Class | Cyclic lactam peptide; melanocortin receptor agonist |
| Product Form | Lyophilized powder supplied in 10 mg research vials |
| Purity | Typically ≥99%, verified with Certificate of Analysis (COA) |
| Solubility | Soluble in bacteriostatic water or sterile laboratory-grade aqueous solutions following reconstitution; handle under controlled laboratory conditions |
| Stability | Lyophilized form supports extended storage under refrigerated or frozen conditions; reconstituted solutions require cold storage and limited-use timeframe |
Melanotan II: Handling & Storage Guidelines
Proper handling of Melanotan II is essential to preserve structural integrity and ensure consistent experimental results. As a cyclic peptide supplied in lyophilized form, it should be protected from environmental stressors that may accelerate degradation.
- Storage (Lyophilized): Store unopened vials refrigerated at 36–46°F (2–8°C) for routine laboratory use. For extended storage, freezing at or below 0°F (−18°C) is recommended. Protect from light and moisture at all times.
- Reconstitution: Reconstitute with sterile laboratory-grade water or bacteriostatic water using aseptic technique. Introduce diluent slowly along the vial wall and avoid vigorous shaking; gently swirl to dissolve. For best stability, purity, and consistent results, shop our bacteriostatic water with your Melanotan II order.
- Aliquoting & Freeze-Thaw: After reconstitution, aliquot into smaller sterile volumes if repeated use is anticipated. Avoid repeated freeze–thaw cycles, as they may compromise peptide integrity.
- Working Solution Storage: Store reconstituted solutions refrigerated at 36–46°F (2–8°C) and use within a limited timeframe according to institutional laboratory standards. For longer storage, aliquots may be kept frozen at or below 0°F (−18°C).
- Laboratory Compliance: Handle under appropriate laboratory safety protocols. Use personal protective equipment and follow all institutional, regulatory, and research-use-only guidelines.
COA / Quality Assurance
Each lot of Melanotan II is accompanied by a lot-specific Certificate of Analysis (COA) to support research transparency, traceability, and reproducibility. Eternal Peptides maintains documented quality control standards and partners with independent third-party laboratories, including Janoshik, to provide objective analytical verification.
COAs are generated for every production batch and typically include:
- Peptide Identity: Confirmed via analytical methods such as high-performance liquid chromatography (HPLC) and/or mass spectrometry to verify molecular integrity and sequence conformity.
- Purity Assessment: Quantitative purity determination, commonly ≥99%, based on chromatographic analysis.
- Sterility Testing (where applicable): Evaluation for microbial contamination depending on product format and intended laboratory handling.
- Endotoxin Levels: Measured to assess suitability for sensitive research applications.
- Storage & Handling Guidance: Recommended conditions to preserve structural stability and analytical integrity.
All COAs are lot-specific, traceable, and accessible through our Lab Tests page, allowing researchers to confirm batch data for documentation, audit compliance, and experimental consistency.
Legal / Regulatory Disclaimer
Melanotan II is supplied strictly for laboratory research use only. It is not approved for human or veterinary use, clinical administration, therapeutic application, or diagnostic procedures of any kind. Safety, efficacy, and appropriate dosing in humans or animals have not been established.
Purchasers are responsible for ensuring compliance with all applicable local, state, and federal regulations, as well as institutional biosafety policies governing research chemicals. This material must be handled exclusively by qualified professionals within controlled laboratory environments. Any misrepresentation of intended use or diversion for unauthorized purposes may result in regulatory action or legal consequences.
Always quality-tested, verified with third-party COAs
At every step, we prioritize quality by conducting rigorous third-party testing on all our products. These tests focus on five key characteristics — identity, purity, sterility, endotoxin levels, and heavy metal content — ensuring that each product meets the highest standards of quality, with independent third-party Certificates of Analysis (COAs) to verify our commitment to excellence.
Identity Test
Identity testing ensures that the product contains the correct ingredient as labeled, verifying its authenticity and matching it to established reference standards.
Purity Test
Purity and concentration testing verifies that the ingredient is present in the correct amount, with a purity of 99% or higher to meet stringent quality standards.
Sterility Test
Sterility testing ensures that the product is completely free from bacteria, fungi, and other microorganisms.
Endotoxin Test
Endotoxicity testing specifically detects and quantifies lipopolysaccharides (LPS), components of bacterial cell walls, to ensure the product is free from endotoxins.
Heavy Metals Test
Heavy metals testing ensures that the product is free of heavy metals such as lead, arsenic, mercury, cadmium, and other heavy metals.
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