HomeLab Tests Peptidology, GLP1-S4
Purity · passBatch · 1362Shop-provided sample

GLP1-S4 × Peptidology — Lab Test, August 2025

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
↓ 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.

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Test results

6 data points
Purity
99.8%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
20 mg
Tested qty
22.72 mg
Qty match
114% of labeled · +14%
0label125%
Batch / Lot
1362
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 GLP1-S4 from Peptidology, performed by Vanguard Laboratory on August 28, 2025. Reported purity: 99.8%. Net content: 22.72 mg against 20 mg labeled (114% of label). Tested content exceeds the labeled amount by 14%. Batch 1362. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
HPLC certificate of analysis for GLP1-S4 20 from Peptidology showing 99.80 purity
Issued by Vanguard Laboratory · Aug 28, 2025 · Batch 1362

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