Melanotan 2 (MT2) Peptide for Sale

How to choose

Which Melanotan II is right for your research?

Every brand is compared on the same points, using the information each brand publishes. Pick the one that fits how you work.

Compare on Information each brand publishes

Viora Our pick: recommended

Divine Steel Peptides

Who it's for

Best for

Researchers who want a lab report for every lot

Larger vial sizes, including Tesamorelin 20 mg

Lab testing

Third-party lab report

Published, tested by Janoshik

Purity on latest lot

99.942%

Other tests on the report

Content, Endotoxin, Peptide contamination, TFA, Sterility

Price

Vial sizes

10 mg

Price per vial

$64.35

$70

Lowest price per mg

$5.47 (10 mg, 5 vials)

$5.95 (10 mg, 5 vials)

Shipping and returns

Dispatch

Not published yet

Shipping cost

$7.95 for Standard, free over $150

Returns

30 days on unopened vials

Prices from each brand, 24 Oct 2026

Choose Viora, $64.35

Choose Divine Steel, $70

Viora Our pick

Best for: Researchers who want a lab report for every lot
Third-party lab report: Published, tested by Janoshik
Purity on latest lot: 99.942%
Other tests on the report: Content, Endotoxin, Peptide contamination, TFA, Sterility
Vial sizes: 10 mg
Price per vial: $64.35
Lowest price per mg: $5.47 (10 mg, 5 vials)
Dispatch: Not published yet
Shipping cost: $7.95 for Standard, free over $150
Returns: 30 days on unopened vials

Choose Viora

Divine Steel Peptides

Best for: Larger vial sizes, including Tesamorelin 20 mg
Third-party lab report: Published, tested by Janoshik
Purity on latest lot: 99.942%
Other tests on the report: Content, Endotoxin, Peptide contamination, TFA, Sterility
Vial sizes: 10 mg
Price per vial: $70
Lowest price per mg: $5.95 (10 mg, 5 vials)
Dispatch: Not published yet
Shipping cost: $7.95 for Standard, free over $150
Returns: 30 days on unopened vials

Choose Divine Steel Peptides

Our recommendation

Viora

Viora is made and shipped in the USA, with a published lab report for the lot on your vial. Bought in 5 vial bundles, Viora works out cheaper per mg ($5.47 vs $5.95).

Source: each brand's website, checked 24 Oct 2026. “Not published yet” means the brand has not made that information public.

Lab report

Melanotan II test results, matched to the lot

Viora, lot VIO-MT2-260526. Tested by Janoshik, an independent laboratory, in 5 reports dated 11 to 23 Jun 2026.

Purity

Pass

99.942%

Melanotan 2 analysis · #167103

View report #167103

Content

Reported

10.85 mg

Melanotan 2 · #167103

View report #167103

Endotoxin

Reported

1 EU/vial

Endotoxin analysis · #167105

Peptide contamination

Pass

No significant contamination detected

LCMS screening · #167106

View report #167106

TFA

Pass

Not detected

TFA analysis · #167104

View report #167104

Sterility

Pass

TAMC, TYMC · #167107

View report #167107

View full lab report

Divine Steel Peptides: lot DSP-MT2-260526, 99.942% purity, Janoshik. View report

Melanotan II research guide · Updated 24 Oct 2026

What is Melanotan II?

Melanotan II is a synthetic cyclic peptide of 7 amino acids, an analog of alpha melanocyte stimulating hormone (alpha-MSH). It was developed at the University of Arizona in the 1980s and acts on melanocortin receptors in laboratory studies. It is supplied as a lyophilized powder for in vitro and preclinical laboratory research only.

Full specifications

Sequence: Ac-Nle cyclo[Asp His D-Phe Arg Trp Lys]-NH2
Length: 7 amino acids (cyclic)
CAS number: 121062-08-6
Molecular formula: C50H69N15O9
Molecular weight: 1024.2 g/mol
Form: Lyophilized powder in a glass vial
Purity standard: 98% or higher (brand listing)
Storage: Minus 20 °C long term. 2 to 8 °C once reconstituted, use within 30 days.

How Melanotan II is tested

A good Melanotan II listing comes with a lab report for the exact lot in the vial. These are the results to look for:

Purity (HPLC)
How much of the sample is the compound
Identity (MS or LCMS)
Confirms it is the right molecule
Net content
The real mg in the vial versus the label
Endotoxin (LAL)
Bacterial residue, reported in EU
Sterility
Confirms nothing is growing in the vial
Heavy metals (ICP-MS)
Arsenic, cadmium, lead and mercury

Storage and handling

Lyophilized Melanotan II is stable at room temperature while it ships. For long term storage keep vials at minus 20 °C. Once reconstituted for laboratory use, store at 2 to 8 °C and use within 30 days.

Melanotan 2 vs PT-141

PT-141 (bremelanotide) is closely related to Melanotan II. It has the same cyclic structure, but ends in a free acid instead of an amide. Melanotan II is also sold here as a nasal spray.

Compound PT-141 Lab reports and price per mg by brand Read more → Nasal spray Melanotan II Nasal Spray Lab reports and price per mg by brand Read more →

Where to buy Melanotan II

Online Peptide Market shows every brand that sells Melanotan II on one page, so you can compare lab reports, price per mg and shipping before you buy. Viora offers a 10 mg vial with a published Janoshik report. Divine Steel Peptides offers a 10 mg vial with a published Janoshik report. Buy 3 vials to save 10%, or 5 vials to save 15%.

Questions and answers

Melanotan II questions, answered

Where can I buy Melanotan II?

Right here. Online Peptide Market lists every brand's Melanotan II on one page: Viora (10 mg for $64.35) and Divine Steel Peptides (10 mg for $70). Compare lab reports, price per mg and shipping, then check out in one cart.

Is the Melanotan II third-party tested?

Viora's Melanotan II, lot VIO-MT2-260526, was tested by Janoshik: 99.942% purity, net content of 10.85 mg, endotoxin 1 EU/vial, no significant contamination detected, no TFA detected and passed sterility testing. Divine Steel Peptides' Melanotan II, lot DSP-MT2-260526, was tested by Janoshik: 99.942% purity, net content of 10.85 mg, endotoxin 1 EU/vial, no significant contamination detected, no TFA detected and passed sterility testing.

What is the difference between Melanotan 1 and Melanotan 2?

Melanotan 1 (afamelanotide) is a linear peptide of 13 amino acids. Melanotan 2 is a smaller cyclic peptide of 7 amino acids. Both are analogs of alpha-MSH. Only Melanotan 2 is sold on Online Peptide Market.

Do you offer bulk discounts on Melanotan II?

Yes. Buy 3 vials and save 10%, or 5 vials and save 15%. A 5 vial bundle of Viora 10 mg works out to $5.47 per mg, the lowest price per mg on the page.

How should Melanotan II be stored?

Keep lyophilized vials at minus 20 °C for long term storage. They are stable at room temperature while shipping. Once reconstituted for lab use, store at 2 to 8 °C and use within 30 days.

What does research use only mean?

Products are sold only for in vitro laboratory research. They are not drugs, supplements or cosmetics, are not FDA approved, and are not for human or veterinary use. Buyers must be 21 or older.

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