Compare lab measurements, vendor test histories and original reports for Thymosin Beta-4.
What the Thymosin Beta-4 record shows
Evidence through 2026-10-23
TitrateLab tracks 197 published Thymosin Beta-4 certificate-of-analysis source records through 2026-10-23, each with a recorded purity or measured-versus-label amount result. Across 197 records with a numeric peptide-purity result, including zero, the median reported purity is 99.3%. Across 181 records with measured-versus-label dose data, 54% 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: 2026-10-28T20:50:23.237843+00:00. Calculation time is not a test date.
Published records197
Reported purity99.3% median · 197 results
Dose accuracy54% within ±10% · 181 results
Endotoxin100% pass · 43 determinate results
Evidence dates2026-03-17 to 2026-10-23
Limits and missing evidence
The testing laboratory is unattributed on 2 records.
Coverage depends on reports that were published and available to ingest.
Thymosin Beta-4 lab-testing metrics
197
Certificates
99.3%
Median reported purity (zero included)
99%
Purity records ≥ 99%
0
Source records reporting zero purity
3
Testing labs
54
Vendors
Mean purity99.3%Below 90% purity0%Mean dose vs label+6.8%Underfilled10%Endotoxin pass100%Within 10% of label dose54%Overdosed ≥ +7%41%Underdosed ≤ −7%20%
COAs per testing lab
Every lab testing Thymosin Beta-4 in the corpus.
Freedom Diagnostics19299.3% med
ILS Laboratories299.7% med
Unattributed / lab unknown299.8% med
Accumark Labs199.8% med
Tested-purity distribution
Bins below 90% tested purity (0% of numeric purity records).
Thymosin Beta-4 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%
1
98–99%
1
99–100%
195
COAs over time
Thymosin Beta-4 source records by test month (discovery month when test date is absent).
Thymosin Beta-4 certificates per month
Month
Certificates
2026-03
3
2026-04
2
2026-05
1
2026-08
1
2026-09
130
2026-10
60
Most-tested vendors
Top 10 of 15 vendors by Thymosin Beta-4 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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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.
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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.
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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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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.
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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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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