Compare lab measurements, vendor test histories and original reports for Tadalafil.
What the Tadalafil record shows
Evidence through 2026-09-19
TitrateLab tracks 70 published Tadalafil certificate-of-analysis source records through 2026-09-19, each with a recorded purity or measured-versus-label amount result. Across 17 records with a numeric peptide-purity result, including zero, the median reported purity is 98%. Across 53 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: 2026-09-24T21:19:31.096830+00:00. Calculation time is not a test date.
Published records70
Reported purity98% median · 17 results
Dose accuracy66% within ±10% · 53 results
EndotoxinNot reported
Evidence dates2017-11-13 to 2026-09-19
Limits and missing evidence
No classifiable endotoxin results were recorded.
The testing laboratory is unattributed on 2 records.
Coverage depends on reports that were published and available to ingest.
Assay metrics
Tadalafil lab-testing metrics
70
Certificates
98%
Median reported purity (zero included)
29%
Purity records ≥ 99%
0
Source records reporting zero purity
2
Testing labs
38
Vendors
Mean purity98%Below 90% purity0%Mean dose vs label+13.2%Underfilled4%Within 10% of label dose66%Overdosed ≥ +7%38%Underdosed ≤ −7%8%
COAs per testing lab
Every lab testing Tadalafil in the corpus.
Janoshik6098% med
Freedom Diagnostics899.8% med
Unattributed / lab unknown299.9% med
Tested-purity distribution
Bins below 90% tested purity (0% of numeric purity records).
Tadalafil tested-purity distribution
Purity range
Certificates
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%
5
97–98%
0
98–99%
7
99–100%
5
COAs over time
Tadalafil source records by test month (discovery month when test date is absent).
Tadalafil certificates per month
Month
Certificates
2017-11
1
2018-12
1
2019-08
1
2020-01
1
2020-06
1
2020-12
1
2021-02
1
2021-05
1
2021-07
1
2021-10
1
2022-07
1
2022-08
1
2022-11
3
2022-12
3
2023-01
2
2023-03
4
2023-04
1
2023-05
2
2023-08
3
2024-01
2
2024-03
2
2024-04
1
2024-05
1
2024-07
2
2024-08
3
2024-10
3
2024-12
1
2025-01
1
2025-04
3
2025-05
4
2025-08
2
2025-09
3
2025-10
1
2026-02
2
2026-05
1
2026-06
2
2026-07
1
2026-08
4
2026-09
1
Most-tested vendors
Top 10 of 15 vendors by Tadalafil certificate count.
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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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.
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Lab evidence
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3 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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3 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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2 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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2 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 ProWhich vendor is this?
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Lab evidence
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2 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 ProWhich 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 +2
Lab evidence
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2 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 ProWhich vendor is this?
Pro shows the vendor’s name, its original lab reports and batch details.
Vendor behind these reportsVendor name available with Pro