What the Nad record shows

Evidence through 2026-11-09

TitrateLab tracks 3,384 published Nad certificate-of-analysis source records through 2026-11-09, each with a recorded purity or measured-versus-label amount result. Across 3,184 records with a numeric peptide-purity result, including zero, the median reported purity is 99.9%. Across 2,963 records with measured-versus-label dose data, 66% 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: 2026-11-13T13:09:03.927656+00:00. Calculation time is not a test date.

Published records3,384
Reported purity99.9% median · 3,184 results
Dose accuracy66% within ±10% · 2,963 results
Endotoxin99% pass · 257 determinate results
Evidence dates2022-07-28 to 2026-11-09
Limits and missing evidence
  • The testing laboratory is unattributed on 26 records.
  • Coverage depends on reports that were published and available to ingest.

Nad lab-testing metrics

3,384
Certificates
99.9%
Median reported purity (zero included)
97%
Purity records ≥ 99%
10
Source records reporting zero purity
12
Testing labs
1,122
Vendors
Mean purity99.4% Below 90% purity0% Mean dose vs label+5.5% Underfilled6% Endotoxin pass99% Within 10% of label dose66% Overdosed ≥ +7%42% Underdosed ≤ −7%8%

COAs per testing lab

Top 12 of 13 labs by certificate count.

Freedom Diagnostics 3,002 99.9% med
Janoshik 199 91.8% med
Finnrick (Lab E) 66 98.4% med
Chromate 35 96% med
Unattributed / lab unknown 26 99.8% med
ILS Laboratories 21 99.3% med
Finnrick (Lab G) 9 99.9% med
Accumark Labs 7 100% med
Vanguard Laboratory 7 99.8% med
Testides 3 99.3% med
KMD Analytical 2 99.8% med
Krause Analytical 1 98.2% med

+ 1 more lab with fewer certificates.

Tested-purity distribution

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

Nad tested-purity distribution
Purity rangeCertificates
0–50%10
50–70%0
70–80%0
80–85%0
85–90%3
90–91%2
91–92%2
92–93%5
93–94%8
94–95%5
95–96%6
96–97%11
97–98%3
98–99%41
99–100%3088

COAs over time

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

Nad certificates per month
MonthCertificates
2022-074
2023-051
2023-111
2024-021
2024-041
2024-061
2024-081
2024-092
2024-102
2024-111
2024-123
2025-017
2025-023
2025-0311
2025-048
2025-0531
2025-0622
2025-0720
2025-0848
2025-0956
2025-1065
2025-1198
2025-12117
2026-01115
2026-02159
2026-03172
2026-04185
2026-05265
2026-06361
2026-07427
2026-08458
2026-09422
2026-10275
2026-1141

Most-tested vendors

Top 10 of 15 vendors by Nad 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 + 59

Lab evidence

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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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Vendor name available with ProExplore reports + 27

Lab evidence

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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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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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Vendor name available with ProExplore reports + 26

Lab evidence

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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 + 20

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 + 20

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 + 17

Lab evidence

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17 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
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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 + 13

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 + 13

Lab evidence

Free preview

13 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 + 13

Lab evidence

Free preview

13 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

+ 5 more vendors with fewer certificates.

Published Nad certificates of analysis

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

Reading Nad 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