What the Kisspeptin record shows

Evidence through 2026-09-23

TitrateLab tracks 564 published Kisspeptin certificate-of-analysis source records through 2026-09-23, each with a recorded purity or measured-versus-label amount result. Across 564 records with a numeric peptide-purity result, including zero, the median reported purity is 99.6%. Across 493 records with measured-versus-label dose data, 47% 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: 2026-09-25T00:24:12.558832+00:00. Calculation time is not a test date.

Published records564
Reported purity99.6% median · 564 results
Dose accuracy47% within ±10% · 493 results
Endotoxin100% pass · 21 determinate results
Evidence dates2022-07-28 to 2026-09-23
Limits and missing evidence
  • The testing laboratory is unattributed on 5 records.
  • Coverage depends on reports that were published and available to ingest.
Assay metrics

Kisspeptin lab-testing metrics

564
Certificates
99.6%
Median reported purity (zero included)
99%
Purity records ≥ 99%
0
Source records reporting zero purity
5
Testing labs
323
Vendors
Mean purity99.5% Below 90% purity0% Mean dose vs label+7.3% Underfilled12% Endotoxin pass100% Within 10% of label dose47% Overdosed ≥ +7%49% Underdosed ≤ −7%19%

COAs per testing lab

Every lab testing Kisspeptin in the corpus.

Freedom Diagnostics 502 99.6% med
Janoshik 51 99.7% med
Unattributed / lab unknown 5 99.8% med
ILS Laboratories 4 99.2% med
Finnrick (Lab G) 1 99.7% med
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%2
98–99%5
99–100%556

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
2026-0232
2026-0326
2026-0437
2026-0559
2026-0661
2026-0770
2026-0885
2026-0962

Most-tested vendors

Top 10 of 15 vendors by Kisspeptin certificate count.

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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.

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+ 5 more vendors with fewer certificates.

Published Kisspeptin certificates of analysis

564 records. Zero guesswork.

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.

More COA results by compound