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 Diagnostics 192 99.3% med
ILS Laboratories 2 99.7% med
Unattributed / lab unknown 2 99.8% med
Accumark Labs 1 99.8% med

Tested-purity distribution

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

Thymosin Beta-4 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%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
MonthCertificates
2026-033
2026-042
2026-051
2026-081
2026-09130
2026-1060

Most-tested vendors

Top 10 of 15 vendors by Thymosin Beta-4 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 + 4

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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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.

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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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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.

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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 + 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 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
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  • Ask Titer, the AI research assistant
Vendor name available with ProExplore reports + 2

Lab evidence

Free preview

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 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 + 2

Lab evidence

Free preview

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 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 + 2

Lab evidence

Free preview

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 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 + 2

Lab evidence

Free preview

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 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 + 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 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 Thymosin Beta-4 certificates of analysis

Open all 197 Thymosin Beta-4 reports.

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

Reading Thymosin Beta-4 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