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Purity · passLab has no portalShop-provided sample

TB-500 × researchpeptideseurope.com — lab test, November 2025

Sample label: Research Peptides Europe
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Tested · submitted by Peptigrity Team Member 02PEPTIGRITY TEAM
Sample source: shop-provided. The shop chose and sent this vial. Samples bought at retail by a member carry more weight.How we weigh evidence →
HPLC Purity
98.99%
Excellent purity only
↓ Download COA
COA on file — not portal-verified

This lab doesn't publish a public lookup, so we can't confirm the certificate against the lab's own record. The document was reviewed before publication, but it rests on our review alone.

What portal verification means →

Test results

7 data points
Purity
98.99%
Endotoxins
< 0.001 EU/mg
Heavy metals
Not tested
Stated qty
5 mg
Tested qty
5.71 mg
Qty match
114% of labeled · +14%
Batch / Lot
TB500/2025-11-20
Tested by
liquilabsView profile →

This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.

About this test

What’s in the vial

Label 5 mg · Lab measured 5.71 mg

114% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 1.4 mg using the measured mass, against 1.3 mg on the label — 14% more.

One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.

Verification trail
Report numberTB500/2025-11-20
Portal lookupLab has no portalThis laboratory publishes no public lookup, so the report cannot be confirmed independently.
PDF vs portalliquilabs's portal shows validity only
WeightCounts as one lab test

Independent HPLC purity analysis of Thymosin Beta-4 from researchpeptideseurope.com, performed by liquilabs on November 28, 2025. Reported purity: 98.99%. Net content: 5.71 mg against 5 mg labeled (114% of label). Tested content exceeds the labeled amount by 14%. Endotoxins: < 0.001 EU/mg. Batch TB500/2025-11-20. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by liquilabs · Nov 28, 2025 · Batch TB500/2025-11-20

Related lab tests

8 tests

The 415 other TB-500 tests on Peptigrity range from 96.84% to 100.00%. This one sits at 98.99%.

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