Certificate of analysis
GLP-1 S 5mg
Prepared for PeptidesDirect
- Lot / sample
- 10B
- Report date
- May 7, 2026
- Released
- May 7, 2026
- Tests reported
- 3
Analytical results
| Test | Method | Specification | Result | Status |
|---|---|---|---|---|
| Purity | RP-HPLC | As reported | 99.93% | Reported |
| Net content | HPLC | As reported | 4.92 mg/vial | Reported |
| Endotoxin | LAL (USP <85>) | As reported | Pass | Pass |
Authentication chain
- 1
Sample received
Submitted by the customer and logged against this lot.
- 2
Laboratory analysis
Tested by a CertikLabs partner laboratory under contract.
- 3
Authenticated
Checked by CertikLabs against the original laboratory record.
- 4
Published
Released to this permanent public record.
Analytical testing was performed by an independent partner laboratory under contract to CertikLabs. CertikLabs authenticated the results against the original laboratory record before publication. Results apply only to the sample and lot identified on this page and make no safety, efficacy, sterility or intended-use claims. For research use only.
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How CertikLabs verification works
/about
About & Certifications — CertikLabs Independent Peptide Lab
CertikLabs is a founder-led independent peptide analytical lab in pre-launch. Accreditation in progress — target 2027.
/api
API — Programmatic verification
REST endpoints, webhooks, and SDKs for partners integrating CertikLabs verification into their systems.
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Ask CertikLabs: questions about peptide testing and verification, answered — CertikLabs
Ask questions about CertikLabs' peptide testing, verification reports, pricing, and mail-in submission. Answers are drawn from our public pages and link to the Testing FAQ, lab directory, and cost guides.
/capabilities
Lab Capabilities — HPLC, LC-MS, Concentration
Standardized peptide assays: HPLC purity to 0.01%, LC-MS identity (±0.1 Da), quantitative concentration (CV<2%), endotoxin (LAL), and custom methods.
/certificates
Live Peptide COAs & Endotoxin Reports by Lot | CertikLabs
Every published CertikLabs record: product, lot, purity, endotoxin result, live verification page and downloadable certificate for each tested lot.
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Side-by-side: methods, deliverables, batch traceability, tamper-evidence, turnaround, and integration. Factual, non-pejorative.