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Purity · passShop-provided sample

Retatrutide — lab test, February 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
99.8%
Excellent purity only
BrandShop withheld
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Independent verification available

Vanguard Laboratory 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

8 data points
Purity
99.8%
Endotoxins
<5.00 EU/mg
Heavy metals
Not tested
Stated qty
40 mg
Tested qty
40.17 mg
Qty match
100% of labeled · +0%
Batch / Lot
251228RT303
Container
Small vial with printed label reading "Retatrutide" / Certified Peptides branding / Purity information on label / Yellow/gold cap
Tested by
Vanguard LaboratoryView 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 40 mg · Lab measured 40.17 mg

100% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 10 mg on both the label figure and the measured one.

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 Retatrutide, performed by Vanguard Laboratory on February 23, 2026. Reported purity: 99.8%. Net content: 40.17 mg against 40 mg labeled (100% of label). Endotoxins: <5.00 EU/mg. Batch 251228RT303. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by Vanguard Laboratory · Feb 23, 2026 · Batch 251228RT303

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The 1311 other Retatrutide tests on Peptigrity range from 64.06% to 100.00%. This one sits at 99.80%.

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