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Purity · passBatch · RET16Shop-provided sample

Retatrutide × Growth Guys — Lab Test, January 2026

Tested · submitted by @Frank 👑 Legend
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
99.356%
Excellent purity only
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Test results

6 data points
Purity
99.356%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
10 mg
Tested qty
10.37 mg
Qty match
104% of labeled · +4%
0label125%
Batch / Lot
RET16
Tested by
Janoshik LabsView 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

Independent HPLC purity analysis of Retatrutide from growthguys.is, performed by Janoshik Labs on January 2, 2026. Reported purity: 99.356%. Net content: 10.37 mg against 10 mg labeled (104% of label). Batch RET16. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Retatrutide lab test from Growth Guys showing 10.37mg tested quantity at 99.356% purity
Issued by Janoshik Labs · Jan 02, 2026 · Batch RET16

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The 1024 other Retatrutide tests on Peptigrity range from 64.06% to 100.00%. This one sits at 99.36%.

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