Melanotan II: 10MG - PGL

Melanotan II: 10MG

£19.99

Purity: ≥ 99%

Sale price  £19.99 Regular price 
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Melanotan II: 10MG - PGL

Melanotan II: 10MG

£19.99

Purity: ≥ 99%

Sale price  £19.99 Regular price 

MELANOGENESIS - Skin pigmentation & melanin production research

NEUROENDOCRINE - Brain signalling & nervous system pathway research

METABOLIC - Appetite control & energy balance research

IMMUNE - Immune modulation & inflammation control research

Overview

Melanotan II (MT-II) is a synthetic cyclic lactam analogue of alpha-melanocyte-stimulating hormone (alpha-MSH), a peptide hormone that occurs naturally in the human body. It was originally developed at the University of Arizona during the 1980s and 1990s, as part of a research programme investigating whether pharmacological tanning could reduce UV-induced skin damage. The compound is a truncated derivative of Melanotan I (afamelanotide), re-engineered into a cyclic structure to enhance stability and receptor activity.

MT-II functions as a non-selective agonist at melanocortin receptors MC1R, MC3R, MC4R, and MC5R. Its cyclic lactam structure confers significantly greater in vivo stability than the linear alpha-MSH precursor, as well as enhanced blood-brain barrier permeability relative to other melanocortin analogues. This multi-receptor profile has made MT-II a widely used molecular tool for investigating melanocortin receptor signalling pathways across pigmentation biology, neuroendocrine research, metabolic regulation, and immune signalling models.

Origin: Developed at the University of Arizona from the naturally occurring alpha-MSH peptide. Its cyclic structure was engineered to improve metabolic stability and receptor binding potency compared to the linear endogenous template.

Research Context: Studied in preclinical and clinical models for melanogenesis, erectile function, appetite regulation, and immune modulation. No regulatory authority has approved Melanotan II for any medical application. Its derivative bremelanotide (PT-141) received FDA approval in 2019 for hypoactive sexual desire disorder.

Amino Acid Sequence: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2

Molecular Formula: C50H69N15O9

Molecular Weight: 1,024.2 g/mol

CAS Number: 121062-08-6

Form: Lyophilised Solid

Published Research

The following summaries are drawn from peer-reviewed publications. Pure Grade Labs does not interpret these findings as evidence of efficacy or safety for human use.

Life Sciences: Evaluation of Melanotan-II, a superpotent cyclic melanotropic peptide, in a pilot phase I clinical study

Nature: MC1R signalling and melanin pigmentation: ultraviolet-independent melanogenesis via cyclic AMP

International Journal of Impotence Research: Bremelanotide/MT-II and erectile response: double-blind crossover study in men with psychogenic erectile dysfunction

References

https://pubmed.ncbi.nlm.nih.gov/8637402/

https://pubmed.ncbi.nlm.nih.gov/7983590/

https://pubmed.ncbi.nlm.nih.gov/19224885/

https://pubmed.ncbi.nlm.nih.gov/34464955/

https://pubmed.ncbi.nlm.nih.gov/33332767/

https://pubmed.ncbi.nlm.nih.gov/28009464/

https://pubmed.ncbi.nlm.nih.gov/24355990/

https://pmc.ncbi.nlm.nih.gov/articles/PMC5572812/

https://pmc.ncbi.nlm.nih.gov/articles/PMC6328175/

https://pmc.ncbi.nlm.nih.gov/articles/PMC12942211/

Certificate of Analysis

Every batch of Melanotan II supplied by Pure Grade Labs is accompanied by a Certificate of Analysis (COA) from an independent third-party analytical laboratory. The COA confirms identity, purity by HPLC, and absence of contaminants. Batch-specific documentation is linked below.

Storage Requirements

Melanotan II is supplied as a lyophilised (freeze-dried) solid. The cyclic lactam structure of MT-II confers greater stability than many linear peptides, but correct storage conditions remain essential to preserve compound integrity and prevent oxidative degradation of sensitive residues.

Temperature: -20°C Long-term storage. For short-term use (up to 4 weeks), 2-8°C is acceptable.

Light Sensitivity: Light-Sensitive. Store in original opaque vial. Avoid direct UV or prolonged exposure to light.

Shelf Life: 24 Months. Lyophilized, sealed, stored at -20°C. Batch expiry printed on vial label.

Preparation Notes

  1. Allow the sealed vial to reach room temperature before opening to minimise moisture introduction.
  2. Use bacteriostatic water (BAC water) as the reconstitution solvent. Add solvent slowly down the inside wall of the vial - do not inject directly onto the lyophilised cake.
  3. Gently swirl the vial until fully dissolved. Do not vortex or shake vigorously. MT-II dissolves readily in aqueous solution due to its polar cyclic structure.
  4. Once reconstituted, store at 2-8°C and protect from light. Use within 28 days. Do not freeze reconstituted solution.
  5. Discard if solution appears cloudy, discoloured, or contains particulate matter.

Research Purposes Only

Melanotan II supplied by Pure Grade Labs is intended exclusively for in vitro research and laboratory use. This product is not approved for human or veterinary use by any regulatory authority, including the FDA, MHRA, TGA, or EMA.

  • This product is not a drug, medicine, or supplement and must not be used as such.
  • Pure Grade Labs makes no claims regarding therapeutic or clinical efficacy in humans.
  • This product must not be administered to humans or animals outside of a licensed research context.
  • Health agencies in multiple jurisdictions, including the MHRA and TGA, have issued specific warnings against unlicensed use of Melanotan II due to documented adverse effects including cardiovascular events and changes to melanocytic lesions.
  • Melanotan II has not been approved by any government drug regulatory agency for human use.
  • Athletes subject to anti-doping regulations should note that melanocortin receptor agonists may be captured under S2 (Peptide Hormones) or S0 (Unapproved Substances) categories under the WADA Code.
  • Purchasers are solely responsible for compliance with all applicable laws and regulations in their jurisdiction.

All product information, research summaries, and study citations presented on this page are provided for informational context only and do not constitute medical advice, endorsement of any treatment, or recommendation for human use.

All products are intended solely for laboratory research and are not for human or animal consumption. By purchasing, the buyer agrees to use these products in compliance with all applicable laws.

Our three-stage cold chain process

1
STEP 1: Pharma-Grade Production

STEP 1: Pharma-Grade Production

Manufactured in a controlled facility under strict compounding standards.

2
STEP 2: Purity Verified

STEP 2: Purity Verified

Every batch independently tested via HPLC and mass spectrometry before it leaves the facility.

3
STEP 3: Dispatched the Same Day

STEP 3: Dispatched the Same Day

Order before 2pm - your order ships the same day, every day.

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