- Reported purity
- 99.58%99.5%+
- Test date
- Jun 24, 2026
- Laboratory named
- Freedom Diagnostics
Lot details
ULP-49151
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Compare observed vial prices, price per mg, and current indexed COA records across vendors.
Indexed documents do not establish product quality. Missing means we have not indexed one. Index as of Aug 2026.
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Observed market data
Document coverage, not product quality.
Observed Thymosin Beta-4 listings span $29.99-$110 in total vial price, with a median of $6.70 per mg across 6 usable listings as of Aug 30, 2026. Compare Thymosin Beta-4 by vial size, total price, price per mg, stock signal, vendor coverage, and last-checked date. These market observations do not verify product quality or recommend a seller. Each vendor row shows its current COA record, including the reported purity, named lab, and printed test date.
Observed Thymosin Beta-4 listings span $29.99-$110 in total vial price, with a median of $6.70 per mg across 6 usable listings as of Aug 30, 2026.
The comparison covers observed vial prices, price per mg, vial sizes, stock signals, vendor coverage, and last-checked dates. It does not verify product quality or recommend a seller.
The index has a current certificate on file for 5 of 7 tracked Thymosin Beta-4 vendors, with 15 public documents. Vendors may have testing that we have not indexed.
Choose “Highest COA purity” to sort vendors by the value printed on each current certificate. The number belongs to that document, lab, lot, and test date. It cannot establish product quality or safety, and values from different labs or methods are not directly comparable.
Product documentation
Current certificates are on file for 5 of 7 tracked vendors. The public evidence set contains 15 documents naming 4 laboratories. Reported test dates in this set run from Jun 16, 2025 through Jun 24, 2026.
2 tracked vendors have no current certificate in this index. Those vendors may have testing we have not indexed.
5 current records
ULP-49151
1245
SPECTB101
BPT203501014
20251009003
| Printed lab | Certificate | |||
|---|---|---|---|---|
| Umbrella Labs | Freedom Diagnostics | Jun 24, 2026 | 99.58%99.5%+ | View COA |
| solyn | Vanguard Laboratory | Jun 22, 2026 | 99.8%99.5%+ | View COA |
| Pure Peptides | MZ Biolabs | Jul 15, 2025 | 99.36%99.0–99.49% | View COA |
| Genesis Peptides | MZ Biolabs | Jun 16, 2025 | 99.62%99.5%+ | View COA |
| Peptide Works | Peptide Works | Not reported | 99.2%99.0–99.49% | View COA |
A record appears on file after our pipeline identifies the document as a certificate of analysis and matches its printed compound to a catalog peptide. The record cannot prove authenticity, chain of custody, sterility, product safety, or suitability for use.
Lab, lot, date, compound, and purity fields are transcribed from the document and can contain extraction errors. “Older record” means the reported test date is more than 18 months old.
Learn how to read a peptide COA or review the testing methodology and dataset.