Melanotan II — The Melanin Peptide
Melanotan II is best known in research for one thing: melanin. It’s a melanocortin peptide studied for how the body’s pigment pathways are switched on, and it also touches the same appetite and libido pathways as its melanocortin cousins. Published batch documentation is shown on the COA page when a matching record is available.

Why review Melanotan II with Aeternum Life
The listing identifies this item as a laboratory research material.
Identity, format, storage, and package information are shown on the product page.
Destination availability, dispatch details, and tracking are confirmed for the order.
COA records appear by product and batch when a matching record is published.
What is Melanotan II?
Melanotan II is a synthetic melanocortin peptide — an analog of α-MSH, the hormone that signals your body to produce melanin. In research it’s the go-to molecule for studying the pigmentation pathway, and because it hits melanocortin receptors broadly, it also connects to appetite and libido.
That broad melanocortin action is why Melanotan II is studied across pigmentation, appetite and arousal research. It is a research material only, and studies typically note effects such as nausea and darkening of moles — which is why it’s handled carefully in a research setting. Aeternum Life supplies it as ultra-high-purity research material with a batch-specific Certificate of Analysis on every order.
Research directions

Melanotan II is a broad melanocortin peptide. Here’s where the research goes.
The headline: Melanotan II is the go-to research molecule for the pigment (melanin) pathway.
It activates melanocortin receptors broadly, which is why it reaches several systems.
The melanocortin system ties into appetite, a secondary research angle.
Like PT-141, it touches melanocortin-driven arousal pathways.
Studies note side-signals (e.g. nausea, mole darkening), so it’s handled carefully — research use only.
For research purposes only. These materials are not drugs or dietary supplements and are not intended to diagnose, treat, cure or prevent any disease.
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Melanotan II documentation
- Published product specification
- Reported purity and test date when available
- Batch number shown on matching records
- Laboratory and verification details only when supplied
The COA page shows the batch documentation currently published. Missing fields are left blank rather than inferred.
Handling & Storage
Guidance for handling Melanotan II as a laboratory research material.
Store lyophilized Melanotan II cold and protected from light, sealed and dry until use.
Handle Melanotan II according to standard laboratory practice for research materials.
Published batch documentation is linked when a matching record is available.
Melanotan II is supplied strictly for laboratory and research use. Not for human or veterinary consumption; no administration or dosing guidance is provided.
Specifications
- Name
- Melanotan II
- CAS
- 121062-08-6
- Appearance
- White lyophilized powder
- Size
- 10 mg per vial
- Purity
- ≥ 99% (HPLC, see COA)
- Storage
- Store at 2–8°C, protect from light
For research use. Not intended to diagnose, treat, cure or prevent any disease.
Frequently asked questions
What is Melanotan II studied for?
It’s studied around the pigmentation (melanin) pathway and, more broadly, melanocortin receptors that also touch appetite and libido. We share these as research directions, not medical claims.
Anything to note about handling it?
Research notes side-signals like nausea and darkening of moles, so it’s handled carefully — research use only.
Is Melanotan II for human use?
No. Aeternum Life supplies Melanotan II strictly as a research-grade material for laboratory research. It is not sold for human or veterinary consumption.
Is a COA available for Melanotan II?
Published COA records are available by product and batch when a matching record exists. Laboratory and verification details appear only when stated in that record.

About Aeternum Life
Aeternum Life Limited publishes clearly labeled laboratory research materials and accessories, with specifications and available batch documentation.
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Melanotan II is part of the Aeternum Life research catalog. Review its intended-use status, specifications, and any currently published batch record before ordering.
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