What the Kisspeptin record shows

Evidence through 2026-11-07

TitrateLab tracks 668 published Kisspeptin certificate-of-analysis source records through 2026-11-07, each with a recorded purity or measured-versus-label amount result. Across 667 records with a numeric peptide-purity result, including zero, the median reported purity is 99.6%. Across 587 records with measured-versus-label dose data, 49% are within 10% of the labeled quantity. This is a public convenience sample, not a randomized market survey; one result describes one submitted sample and does not verify other batches.

Published records with a non-null purity or measured-versus-label amount result. Matching uses a normalized compound slug. No deduplication in this archive summary; relays and corrected records can remain separate. Records with neither measurement are excluded here, but can appear in the research overview's exact-token raw-record total. These are not unique certificates or batches. TitrateLab indexes reports from third-party laboratories.

Aggregate calculated: 2026-11-13T13:09:49.270223+00:00. Calculation time is not a test date.

Published records668
Reported purity99.6% median · 667 results
Dose accuracy49% within ±10% · 587 results
Endotoxin100% pass · 54 determinate results
Evidence dates2022-07-28 to 2026-11-07
Limits and missing evidence
  • The testing laboratory is unattributed on 5 records.
  • Coverage depends on reports that were published and available to ingest.

Kisspeptin lab-testing metrics

668
Certificates
99.6%
Median reported purity (zero included)
98%
Purity records ≥ 99%
0
Source records reporting zero purity
7
Testing labs
336
Vendors
Mean purity99.5% Below 90% purity0% Mean dose vs label+6.9% Underfilled12% Endotoxin pass100% Within 10% of label dose49% Overdosed ≥ +7%48% Underdosed ≤ −7%18%

COAs per testing lab

Every lab testing Kisspeptin in the corpus.

Freedom Diagnostics 600 99.6% med
Janoshik 51 99.7% med
ILS Laboratories 5 99.2% med
Unattributed / lab unknown 5 99.8% med
Finnrick (Lab E) 2 99.8% med
Finnrick (Lab G) 2 99.8% med
Krause Analytical 1
Vanguard Laboratory 1 99.8% med

Tested-purity distribution

Bins below 90% tested purity (0% of numeric purity records).

Kisspeptin tested-purity distribution
Purity rangeCertificates
0–50%0
50–70%0
70–80%0
80–85%0
85–90%0
90–91%0
91–92%0
92–93%0
93–94%0
94–95%0
95–96%0
96–97%1
97–98%4
98–99%6
99–100%656

COAs over time

Kisspeptin source records by test month (discovery month when test date is absent).

Kisspeptin certificates per month
MonthCertificates
2022-071
2023-111
2024-071
2024-082
2025-011
2025-033
2025-056
2025-063
2025-075
2025-0812
2025-092
2025-1013
2025-1126
2025-1222
2026-0134
2026-0233
2026-0328
2026-0437
2026-0559
2026-0661
2026-0771
2026-0887
2026-0990
2026-1064
2026-116

Most-tested vendors

Top 10 of 15 vendors by Kisspeptin certificate count.

TitrateLab ProVendor names in this chart are hidden. Lab-report counts stay public.Vendor namesOriginal COAsBatch detailsBuyer reviewsPrice and stock alertsSee vendor names with Pro
Vendor name available with ProExplore reports + 11

Lab evidence

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Lab evidence

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Lab evidence

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Lab evidence

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6 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

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Lab evidence

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Explore this vendor’s lab reports

Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
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Vendor name available with ProExplore reports + 5

Lab evidence

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Explore this vendor’s lab reports

Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
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Vendor name available with ProExplore reports + 4

Lab evidence

Free preview

Explore this vendor’s lab reports

Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
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Vendor name available with ProExplore reports + 4

Lab evidence

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4 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
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  • Ask Titer, the AI research assistant
Vendor name available with ProExplore reports + 4

Lab evidence

Free preview

Explore this vendor’s lab reports

Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant

+ 5 more vendors with fewer certificates.

Published Kisspeptin certificates of analysis

Open all 668 Kisspeptin reports.

Unlock the actual vendor, purity, dose accuracy, lab, batch and saved certificate for every Kisspeptin result.

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Illustrative structure only. No record-level values are present in this preview.

Reading Kisspeptin lab reports

A valid report describes the sample that was submitted, not every vial sold under the same name. Guide: How to verify and read a peptide COA: 5 checks.

More COA results by compound