What the Semax record shows

Evidence through 2026-10-14

TitrateLab tracks 1,573 published Semax certificate-of-analysis source records through 2026-10-14, each with a recorded purity or measured-versus-label amount result. Across 1,569 records with a numeric peptide-purity result, including zero, the median reported purity is 99.5%. Across 1,357 records with measured-versus-label dose data, 32% 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: 2026-10-18T09:32:28.956394+00:00. Calculation time is not a test date.

Published records1,573
Reported purity99.5% median · 1,569 results
Dose accuracy32% within ±10% · 1,357 results
Endotoxin100% pass · 69 determinate results
Evidence dates2023-10-24 to 2026-10-14
Limits and missing evidence
  • The testing laboratory is unattributed on 14 records.
  • Coverage depends on reports that were published and available to ingest.

Semax lab-testing metrics

1,573
Certificates
99.5%
Median reported purity (zero included)
93%
Purity records ≥ 99%
0
Source records reporting zero purity
10
Testing labs
708
Vendors
Mean purity99.4% Below 90% purity0% Mean dose vs label+15.2% Underfilled2% Endotoxin pass100% Within 10% of label dose32% Overdosed ≥ +7%74% Underdosed ≤ −7%4%

COAs per testing lab

Every lab testing Semax in the corpus.

Freedom Diagnostics 1,310 99.6% med
Janoshik 173 99.5% med
Chromate 34 99.3% med
Unattributed / lab unknown 14 99.8% med
ILS Laboratories 10 99.8% med
Testides 5 99.8% med
Vanguard Laboratory 5 99.4% med
Finnrick (Lab E) 4 99.3% med
Krause Analytical 3 96.1% med
Accumark Labs 2 99.6% med
Finnrick (Lab G) 1 99.9% med

Tested-purity distribution

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

Semax 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%1
94–95%1
95–96%1
96–97%4
97–98%14
98–99%96
99–100%1452

COAs over time

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

Semax certificates per month
MonthCertificates
2023-102
2023-111
2024-011
2024-041
2024-051
2024-061
2024-071
2024-084
2024-111
2024-123
2025-014
2025-038
2025-044
2025-056
2025-0611
2025-0721
2025-0823
2025-0933
2025-1056
2025-1157
2025-1262
2026-0151
2026-0279
2026-03106
2026-04109
2026-05122
2026-06156
2026-07171
2026-08215
2026-09197
2026-1066

Most-tested vendors

Top 10 of 15 vendors by Semax 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 + 23

Lab evidence

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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.

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Lab evidence

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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.

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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 + 9

Lab evidence

Free preview

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

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
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  • Original COAs with batch details
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  • Price and stock alerts for your watchlist
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Vendor name available with ProExplore reports + 9

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
Vendor name available with ProExplore reports + 8

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
Vendor name available with ProExplore reports + 8

Lab evidence

Free preview

8 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
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
Vendor name available with ProExplore reports + 8

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
Vendor name available with ProExplore reports + 8

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 Semax certificates of analysis

Open all 1,573 Semax reports.

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

Reading Semax 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.

TitrateLab analysis mentioning Semax

More COA results by compound