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Certificate record

TB-500, lot 31-01260229

MZ Biolabs assayed lot 31-01260229 of TB-500 from Ascension Peptides at 99.97% purity on 10 Feb 2026, reporting 4.89 mg against a 5 mg label, 2.2% below the labelled mass.

Assayed 10 Feb 2026 · MZ Biolabs · Ascension Peptides · record id coa-ascensionpeptides-31-01260229

What the certificate reports

CompoundTB-500
Lot identifier31-01260229
Purity99.97%
Labelled mass5 mg
Assayed mass4.89 mg
Difference2.2% below the label
Assay date10 Feb 2026
Testing laboratoryMZ Biolabs
Who commissioned itPublished by the vendor. Scored as a claim, not as corroboration — only an independently commissioned assay counts as verified.
Source documenthttps://ascensionpeptides.com/wp-content/uploads/2026/03/COA_Thymosin_beta4_quant_31-01260229_20260214.pdf

Check it yourself

MZ Biolabs does not publish a public lookup we have been able to find, so this certificate can be read but not independently re-pulled from the laboratory. The document above is the copy the vendor published. Where a laboratory does offer a lookup, we say so and link it.

A certificate describes the sample it names and nothing else. It is not a statement about any other lot, and it is not an endorsement of the vendor or of any use of the material.

Other lots from Ascension Peptides

TB-500 from other vendors