Sourcing

Trusted Vendors

A directory of suppliers, clinics, and testing services with third-party testing information and member notes.

The Peptide Research Club does not endorse or guarantee any vendor. Purchasing peptides may be restricted in your jurisdiction — research local laws and consult a physician.

Why Blood Testing Matters for Peptide Research

Blood work is the foundation of responsible peptide research. Baseline labs establish where your body starts before any protocol, and follow-up panels reveal whether a peptide is producing its intended effect — shifts in IGF-1, fasting glucose, HbA1c, lipids, liver enzymes (ALT/AST), kidney markers (creatinine/eGFR), and inflammatory markers (hs-CRP). Regular testing helps you confirm efficacy, catch emerging imbalances early, and adjust or pause a protocol before small changes become problems. Without labs, you're guessing; with them, you can research safely and track real outcomes over time.

Siphox Health

At-home blood testing with comprehensive panels to track biomarkers and monitor progress over time.

The PRC Pharmacy

Precision compounded medicine, prescribed by a licensed clinician and dispensed by our 503A partner pharmacy.

Janoshik

Independent analytical testing for peptides and supplements.

ILS Lab

Identity, purity, and potency testing services.

Kovera Labs

Quantitative and qualitative compound analysis.

Finnrick

Third-party lab testing and verification.

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