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Purity · passShop-provided sample

Tirzepatide — lab test, July 2026

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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
99.1%
Excellent purity only
BrandShop withheld
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Independent verification available

MZ Biolabs publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.

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Test results

6 data points
Purity
99.1%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
20 mg
Tested qty
21.46 mg
Qty match
107% of labeled · +7%
Batch / Lot
2026-07-08
Tested by
MZ BiolabsView 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 20 mg · Lab measured 21.46 mg

107% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 5.4 mg using the measured mass, against 5 mg on the label — 7% 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.

Independent HPLC purity analysis of Tirzepatide, performed by MZ Biolabs on July 26, 2026. Reported purity: 99.1%. Net content: 21.46 mg against 20 mg labeled (107% of label). Batch 2026-07-08. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by MZ Biolabs · Jul 26, 2026 · Batch 2026-07-08

Related lab tests

4 tests

The 1010 other Tirzepatide tests on Peptigrity range from 98.00% to 100.00%. This one sits at 99.10%.

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