Melanotan II is a synthetic cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (α-MSH). It acts on melanocortin receptors (primarily MC1R and MC4R) to stimulate melanogenesis  the production of melanin pigment in the skin. Research has demonstrated its efficacy in increasing skin pigmentation (tanning) even without UV exposure, as well as effects on libido and appetite suppression via central nervous system melanocortin pathways. Melanotan II is one of the highest-demand peptides in the wholesale market, particularly in regions with strong tanning culture. Supplied as pharmaceutical-grade lyophilized powder.
| Sequence | Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2 |
| Molecular Formula | C50H69N15O9 |
| Molecular Weight | 1024.18 g/mol |
| Purity | ≥99% (HPLC) |
| Form | Lyophilized powder |
| Storage | -20°C |
| CAS | 121062-08-6 |
According to comprehensive reviews in the Journal of Peptide Science, synthetic therapeutic peptides represent one of the fastest-growing segments of the pharmaceutical industry.
Research published in Trends in Pharmacological Sciences (2023) highlights the importance of peptide purity exceeding 99% for reproducible preclinical research outcomes.
Synthetic analog of alpha-melanocyte stimulating hormone (α-MSH) for melanogenesis stimulation and tanning research applications.
We supply Melanotan II at ≥99% (HPLC) purity. Higher purity grades are available for pharmaceutical applications upon request.
Minimum order quantities for wholesale Melanotan II depend on the quantity and purity grade required. Contact our sales team for specific pricing and MOQ information.
Melanotan II should be stored at -20°C in a desiccated environment. Proper cold-chain shipping is maintained for all deliveries.
Every batch includes a comprehensive Certificate of Analysis with HPLC purity data (≥99%), mass spectrometry confirmation, amino acid analysis, endotoxin testing (<0.5 EU/mg), and residual solvent analysis per ICH Q3C guidelines.
In-stock peptides are dispatched within 48 hours of order confirmation. International delivery takes 5–7 business days via temperature-controlled shipping. Express 2–3 day options available. Our on-time delivery rate is 99.2%.
Yes. Dr. Peptides provides Drug Master File (DMF) documentation, Certificates of Origin, MSDS/SDS in multiple languages, and stability data packages compliant with ICH guidelines for regulatory submissions.
Dr. Peptides offers a 100% money-back quality guarantee. If any product fails to meet the purity specifications stated on its Certificate of Analysis, we provide a full replacement or refund within 48 hours of claim receipt.
All shipments use pharmaceutical-grade insulated packaging with qualified gel packs maintaining 2–8°C for up to 96 hours. Each package includes a temperature data logger for verification upon receipt, per WHO guidelines for temperature-sensitive pharmaceuticals.
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