Melanotan II
A melanocortin peptide studied in tanning and libido research — the most-discussed 'tanning peptide'.
Get told when a price moves or a lab test changes.
Observed median price
$39
Every observation
| Date | Observed |
|---|---|
| $44.50 | |
| $53.81 | |
| $39.00 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $45.99 | |
| $43.50 | |
| $43.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.00 | |
| $44.00 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $44.50 | |
| $42.50 | |
| $42.50 | |
| $42.50 | |
| $42.50 | |
| $44.00 | |
| $44.00 |
Median of 14 listings' 30-day changes; 8 excluded for insufficient history.
21
Active listings
6 · 99.7%
Independent lab tests
$23–$1,293
Observed price range
4
Known aliases
Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Purity vs grade
Understand this compound
What is Melanotan II?
Limited human dataa.k.a. Melanotan II, MT-2The 'tanning peptide' — it darkens skin without sun and also stirs libido and appetite circuits. Case reports tie it to new or changing moles and other serious harms, so its safety record is genuinely concerning.
Good to know: Multiple published case reports link it to new or changing moles, dysplastic nevi, and melanoma, as well as priapism, rhabdomyolysis, and renal infarction, with uncontrolled product purity and dosing.
How does Melanotan II work?
The science
A non-selective cyclic analog of alpha-MSH that activates MC1, MC3, and MC4 receptors, increasing melanin production while also affecting appetite and sexual arousal pathways via MC4R.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
What is Melanotan II researched for?
Used off-label/grey-market for skin tanning and, informally, libido or appetite effects, though never developed as an approved drug for these uses.
- Tanning & libidoStudied in melanocortin research — skin pigmentation and related pathways.
How far has the research gone?
Limited human data — no completed efficacy trials or regulatory approval exist anywhere; it is used almost exclusively as an unregulated grey-market product.
Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.
What should I check before buying?
- Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
- Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
- Vendor reputation. See how the vendor is talked about in the community before trusting a new name.
Research context only — VialGrade never gives dosing, medical, or human-use guidance.
Current market
The Melanotan II market
Every Melanotan II listing we track — 21 in all. The standout picks first where the evidence supports them, then the full table, ranked by what a milligram really costs wherever the vendor published a strength we can read.
Open full marketMelanotan II 10 mg
Sports Technology LabsA
$23$2.35/mg-36% vs median
Lowest price per mg that isn't flagged as suspiciously cheap.
In stockChecked 8 hours ago
Melanotan II 10mg
EZ PeptidesA
$44$4.40/mg+19% vs median
Independently tested at 99.8%.
In stockChecked 8 hours ago
Melanotan II (10MG)
Ascension Peptides
$50$5.00/mg+35% vs median
The most recently re-verified listing on this market.
UnavailableChecked 6 hours ago
Melanotan 2 (MT-2) 50 VIALS AT 30% OFF 10mg/vial × 50 vials
Peptide ProsC+
$1,293$2.59/mg-30% vs median
Ranked #2 of 13 listings by price per milligram.
In stockChecked 8 hours ago
Melanotan-II 10mg
Felix Chemical SupplyA-
$30$3.00/mg-19% vs median
Ranked #3 of 13 listings by price per milligram.
In stockChecked 8 hours ago
Compare by real cost
Every Melanotan II listing, cheapest per mg first
Sticker prices hide the size, so listings are ranked by what a milligram actually costs — with independently tested purity where it exists. All 21 are here: the last 8 are listings whose vendor never published a strength we can read, so they have no per-mg figure to sort on.
| # | Vendor | Size | Price | Per mg | Tested purity | Real $/active mg | |
|---|---|---|---|---|---|---|---|
| 1 | Sports Technology Labs | 10mg total | $23 | $2.35/mg | 99.6% | $2.36/mgbest value | View |
| 2 | Peptide Pros | 500mg total10mg/vial × 50 vials each | $1,293 | $2.59/mg | — | $2.59/mg | View |
| 3 | Felix Chemical Supply | 10mg total | $30 | $3.00/mg | 99.7% | $3.01/mg | View |
| 4 | Peptide Pros | 50mg total | $154 | $3.07/mg | — | $3.08/mg | View |
| 5 | Peptide Pros | 30mg total | $101 | $3.35/mg | — | $3.37/mg | View |
| 6 | Peptide Pros | 10mg total | $37 | $3.70/mg | — | $3.71/mg | View |
| 7 | Modern Aminos | 10mg total | $38 | $3.80/mg | — | $3.81/mg | View |
| 8 | Bluum Peptides | 10mg total | $39 | $3.90/mg | 98.4% | $3.96/mg | View |
| 9 | Umbrella Labs | 10mg total | $41 | $4.10/mg | — | $4.11/mg | View |
| 10 | Core PeptidesUnavailable | 10mg total | $41 | $4.10/mg | — | $4.11/mg | View |
| 11 | Ez Peptides | 10mg total | $44 | $4.40/mg | 99.8% | $4.41/mg | View |
| 12 | Ascension PeptidesUnavailable | 10mg total | $50 | $5.00/mg | — | $5.02/mg | View |
| 13 | Swiss Chems | 10mg total | $280 | $28.0/mg | — | $28.0/mg | View |
| Listed, but not rankable — no published strength to price per mg | |||||||
| — | Eternal Peptides | 1 vial | $29 | no size published | — | — | View |
| — | Nootropic Source | 1 vial | $30 | no size published | — | — | View |
| — | Simple Peptide | 1 vial | $38 | no size published | — | — | View |
| — | Cernum BiosciencesUnavailable | 1 vial | $45 | no size published | — | — | View |
| — | Vici PeptidesUnavailable | 1 vial | $45 | no size published | — | — | View |
| — | PurerawzUnavailable | 1 vial | $63 | no size published | — | — | View |
| — | Behemoth LabzUnavailable | 1 vial | $66 | no size published | — | — | View |
| — | Modern Aminos | 1 vial | $97 | no size published | — | — | View |
Open the full Melanotan II market
Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg. A vendor shown as Unavailable or Low stock is priced here but not currently buyable.
Independent testing
Melanotan II — independent lab tests
Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.
How does this data get here?
Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.
Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.
We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.
What a certificate does & doesn’t prove
Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.
Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.
99.9%
highest tested purity
| Certificate | Manufacturer | Batch | Purity | Content / dose | Lab | |
|---|---|---|---|---|---|---|
| Alpha BioPharma | B33LSYXL | 99.91% | 10.30 mg | Janoshik Analytical Still listed | Verify | |
| EZ Peptides | EZP-MEL21005032026-06 | 99.78% | 11.18 mg; 11.20 mg; 11.28 mg | Janoshik Analytical | Verify | |
| www.certapeptides.com | CP-2604-MT210 | 99.72% | 10.01/10mg · full | Janoshik Analytical Still listed | Verify | |
 | Felix Chemical Supply | 122925-MT2-D | 99.65% | 10.12 mg | Freedom Diagnostics Testing | View |
 | Sports Technology Labs | 2025-10-06 | 99.63% | — | MZ Biolabs | View |
 | Bluum Peptides | 814817 | 98.38% | — | MZ Biolabs | View |
 | Behemoth Labz | P200722-A007 | 99.91% | — | Vendor self-tested | View |
 | Nootropic Source | — | 99.76% | — | Vendor self-tested | View |
Tested batches
Batch test records for Melanotan II
The full test history for one batch — who picked the sample, who tested it, and what came back. It describes the vials that were tested, never every vial they sold.
What the research says
Scientific evidence & regulatory status
What the published literature actually shows about Melanotan II — separate from any vendor’s marketing. Each finding links to its paper. This is education, not medical or dosing advice.
Regulatory status
No FDA-approved drug
Not approved by the FDA or the EMA, and sold illegally online as an injectable or nasal tanning and libido agent. FDA placed Melanotan II in category 2 (significant safety risks) for compounding, citing immunogenicity risk by some routes and published case reports; the nomination was later withdrawn.
Honest overall read
There are no controlled human efficacy or safety trials of melanotan-2; the human literature consists almost entirely of case reports of harm (melanoma/atypical moles, rhabdomyolysis, renal injury, priapism, nausea), and health agencies have warned against its use.
A published case report documented a 20-year-old woman who developed melanoma after using melanotan-II injections combined with tanning-bed exposure.
Single-patient case report linking melanotan-II to melanoma; the drug stimulates melanocytes and multiple cases describe melanoma or changing moles during/after use.
read the sourceIn a published case report, a 39-year-old man who self-injected 6 mg of melanotan II developed sympathomimetic toxicity with CPK rising to 17,773 IU/L, rhabdomyolysis, and acute kidney injury requiring ICU admission.
Documented severe systemic toxicity from an unregulated product with no standardized dose or purity.
read the sourceA published case report describes melanotan-II overdose associated with prolonged, painful erection (priapism).
Priapism is a recurring reported adverse effect, reflecting non-selective melanocortin-receptor activity.
read the sourceCommonly researched together
Often stacked with Melanotan II
Compounds the research community frequently discusses alongside Melanotan II. Not a protocol or a recommendation — a starting point for what to read about next.
Research-use-only — not FDA-approved
Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.
General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Research notes aren’t product proof
Research summaries describe published literature and market data only. They do not establish the identity, quality, safety, or legal status of any listed physical product.