$25
$12.5/mg
+79% vs median/mg
Availability
In stock
Last checked
1 hour ago
A 10-amino-acid C-terminal fragment of the kisspeptin neuropeptide encoded by the KISS1 gene.
Observed median price
$59
14
Active listings
1 · 99.3%
Independent lab tests
$25–$340
Observed price range
4
Known aliases
Read from the certificate, not re-measured by VialGrade.
Understand this compound
A reproductive-hormone peptide studied in fertility and hormonal-axis research.
Good to know: It remains investigational; published trials show a benign adverse-event profile so far, but the evidence base is still smaller than for established IVF trigger agents.
A decapeptide fragment of the kisspeptin/metastin family that binds the GPR54 (KISS1R) receptor upstream of GnRH neurons, triggering GnRH release and downstream LH/FSH secretion.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
Studied in reproductive endocrinology, including ovulation triggering in IVF and diagnosing hypothalamic versus pituitary causes of hypogonadism.
In clinical trials — Phase 2 IVF trials show high live-birth rates with a favorable ovarian hyperstimulation safety profile compared with standard triggers, but it is not yet approved.
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 | Ez Peptides | 10mg total | $44 | $4.40/mg | — | $4.43/mgbest value | View |
| 2 | Simple Peptide | 10mg total | $45 | $4.50/mg | — | $4.53/mg | View |
| 3 | Modern Aminos | 10mg total | $49 | $4.90/mg | — | $4.94/mg | View |
| 4 | Bluum Peptides | 10mg total | $59 | $5.90/mg | — | $5.94/mg | View |
| 5 | Swiss Chems | 10mg total | $60 | $6.00/mg | — | $6.04/mg | View |
| 6 | Umbrella Labs | 10mg total10 Milligrams each | $70 | $7.00/mg | — | $7.05/mg | View |
| 7 | Cernum Biosciences | 10mg total | $75 | $7.50/mg | — | $7.55/mg | View |
| 8 | Umbrella Labs | 5mg total5 Milligrams each | $46 | $9.20/mg | — | $9.27/mg | View |
| 9 | Sports Technology Labs | 5mg total | $52 | $10.4/mg | 99.3% | $10.5/mg | View |
| 10 | Umbrella Labs | 2mg total | $25 | $12.5/mg | — | $12.6/mg | View |
| 11 | Chameleon Peptides | 10mg total | $340 | $34.0/mg | — | $34.3/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
$25
$12.5/mg
+79% vs median/mg
Availability
In stock
Last checked
1 hour ago
$44
$4.40/mg
-37% vs median/mg
Availability
Unavailable
Last checked
36 minutes ago
$45
$4.50/mg
-36% vs median/mg
Availability
In stock
Last checked
2 hours ago
$46
$9.20/mg
+31% vs median/mg
Availability
In stock
Last checked
1 hour ago
$49
$4.90/mg
-30% vs median/mg
Availability
In stock
Last checked
1 hour ago
$52
$10.4/mg
+49% vs median/mg
Availability
In stock
Last checked
2 hours ago
$59
$5.90/mg
-16% vs median/mg
Availability
In stock
Last checked
2 hours ago
$60
Availability
In stock
Last checked
21 minutes ago
$60
$6.00/mg
-14% vs median/mg
Availability
In stock
Last checked
2 hours ago
$70
$7.00/mg
Availability
In stock
Last checked
1 hour ago
$72
Availability
In stock
Last checked
8 days ago
$74
Availability
In stock
Last checked
2 hours ago
$75
$7.50/mg
+7% vs median/mg
Availability
Unavailable
Last checked
21 minutes ago
$340
$34.0/mg
+386% vs median/mg
Availability
In stock
Last checked
37 minutes ago
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.
99.3%
highest tested purity
| Certificate | Manufacturer | Batch | Purity | Content / dose | Lab | |
|---|---|---|---|---|---|---|
![]() | Sports Technology Labs | 2025-10-06 | 99.26% | — | MZ Biolabs | 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.