Compare lab measurements, vendor test histories and original reports for FOXO4.
What the FOXO4 record shows
Evidence through 2026-01-28
TitrateLab tracks 9 published FOXO4 certificate-of-analysis source records through 2026-01-28, each with a recorded purity or measured-versus-label amount result. Across 9 records with a numeric peptide-purity result, including zero, the median reported purity is 99.4%. Across 3 records with measured-versus-label dose data, 67% 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: 2026-09-24T16:22:56.510769+00:00. Calculation time is not a test date.
Published records9
Reported purity99.4% median · 9 results
Dose accuracy67% within ±10% · 3 results
EndotoxinNot reported
Evidence dates2025-03-05 to 2026-01-28
Limits and missing evidence
No classifiable endotoxin results were recorded.
Coverage depends on reports that were published and available to ingest.
Assay metrics
FOXO4 lab-testing metrics
9
Certificates
99.4%
Median reported purity (zero included)
100%
Purity records ≥ 99%
0
Source records reporting zero purity
1
Testing labs
7
Vendors
Mean purity99.4%Below 90% purity0%Mean dose vs label+13.2%Underfilled0%Within 10% of label dose67%Overdosed ≥ +7%33%Underdosed ≤ −7%0%
COAs per testing lab
Every lab testing FOXO4 in the corpus.
Janoshik999.4% med
Tested-purity distribution
Bins below 90% tested purity (0% of numeric purity records).
FOXO4 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%
0
97–98%
0
98–99%
0
99–100%
9
COAs over time
FOXO4 source records by test month (discovery month when test date is absent).
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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1 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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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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1 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 +1
Lab evidence
Free preview
1 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
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 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
Monthly or lifetime plans. Monthly cancels anytime. Compare plans
Vendor name available with ProExplore reports +1
Lab evidence
Free preview
1 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