$28
$2.80/mg
-25% vs median/mg
Availability
In stock
Last checked
1 hour ago
A synthetic cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (alpha-MSH).
Observed median price
$44
18
Active listings
6 · 99.7%
Independent lab tests
$28–$1,293
Observed price range
4
Known aliases
Read from the certificate, not re-measured by VialGrade.
Understand this compound
A melanocortin peptide studied in tanning and libido research — the most-discussed 'tanning peptide'.
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.
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.
Used off-label/grey-market for skin tanning and, informally, libido or appetite effects, though never developed as an approved drug for these uses.
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.
Research context only — VialGrade never gives dosing, medical, or human-use guidance.
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.
Read the full US legal overview →General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Compare by real cost
Vials come in different sizes, so the sticker price lies. This ranks every listing by what a milligram actually costs — with independent test purity where we have it.
| # | Vendor | Size | Price | Per mg | Tested purity | Real $/active mg | |
|---|---|---|---|---|---|---|---|
| 1 | Swiss Chems | 10mg total | $28 | $2.80/mg | — | $2.80/mgbest value | View |
| 2 | Felix Chemical Supply | 10mg total | $30 | $3.00/mg | 99.7% | $3.01/mg | View |
| 3 | Peptide Pros | 50mg total | $154 | $3.07/mg | — | $3.08/mg | View |
| 4 | Peptide Pros | 30mg total | $101 | $3.35/mg | — | $3.37/mg | View |
| 5 | Peptide Pros | 10mg total | $37 | $3.70/mg | — | $3.71/mg | View |
| 6 | Modern Aminos | 10mg total | $38 | $3.80/mg | — | $3.81/mg | View |
| 7 | Bluum Peptides | 10mg total | $39 | $3.90/mg | 98.4% | $3.96/mg | View |
| 8 | Umbrella Labs | 10mg total | $41 | $4.10/mg | — | $4.11/mg | View |
| 9 | Ez Peptides | 10mg total | $44 | $4.40/mg | 99.8% | $4.41/mg | View |
| 10 | Sports Technology Labs | 10mg total | $47 | $4.70/mg | 99.6% | $4.72/mg | View |
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.
Current market
$28
$2.80/mg
-25% vs median/mg
Availability
In stock
Last checked
1 hour ago
$30
Availability
In stock
Last checked
8 days ago
$30
$3.00/mg
-20% vs median/mg
Availability
In stock
Last checked
8 days ago
$37
$3.70/mg
-1% vs median/mg
Availability
In stock
Last checked
8 days ago
$38
$3.80/mg
+1% vs median/mg
Availability
In stock
Last checked
48 minutes ago
$38
Availability
In stock
Last checked
1 hour ago
$39
$3.90/mg
+4% vs median/mg
Availability
In stock
Last checked
1 hour ago
$41
$4.10/mg
+9% vs median/mg
Availability
In stock
Last checked
just now
$44
$4.40/mg
+17% vs median/mg
Availability
In stock
Last checked
8 days ago
$45
Availability
In stock
Last checked
8 days ago
$45
Availability
In stock
Last checked
8 days ago
$47
$4.70/mg
+25% vs median/mg
Availability
In stock
Last checked
1 hour ago
$63
Availability
In stock
Last checked
1 hour ago
$66
Availability
In stock
Last checked
8 days ago
$97
Availability
In stock
Last checked
48 minutes ago
$101
$3.35/mg
-10% vs median/mg
Availability
In stock
Last checked
8 days ago
$154
$3.07/mg
-18% vs median/mg
Availability
In stock
Last checked
8 days ago
$1,293
Availability
In stock
Last checked
8 days ago
Commonly researched together
Compounds the research community frequently discusses alongside Melanotan II. Not a protocol or a recommendation — a starting point for what to read about next.
Independent testing
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.
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.
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
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.
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.