✓ Purity · passBatch · 1668Shop-provided sample
Retatrutide × Peptidology — 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
99.8%
✓ Excellent purity only
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
6 data points
Purity
99.8%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
20 mg
Tested qty
21.36 mg
Qty match
107% of labeled · +7%
0label125%
Batch / Lot
1668
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
Independent HPLC purity analysis of GLP3-R from Peptidology, performed by Vanguard Laboratory on January 6, 2026. Reported purity: 99.8%. Net content: 21.36 mg against 20 mg labeled (107% of label). Batch 1668. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Original document
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