Sourcing Guides & Vendor Reviews
Independent guides on peptide sourcing, purity verification, and vendor evaluation.
How to Verify a Peptide COA: A Complete Guide to Purity Documentation
A step-by-step guide to reading and verifying a peptide Certificate of Analysis — what HPLC means, what mass spectrometry confirms, and red flags to watch for.
Research Chemical vs. Clinical Peptides: What's the Difference?
The key differences between research chemical peptides and physician-supervised clinical peptides — manufacturing standards, legal status, quality controls, and risk profiles.
BPC-157 Sourcing Guide: How to Find Pharmaceutical-Grade BPC-157
A complete guide to sourcing BPC-157 — what to look for in a COA, how to identify quality vendors, and why physician-supervised protocols are the gold standard.
Peptide Storage & Reconstitution: A Complete Quality Guide
How to properly store and reconstitute peptides to maintain purity and potency — and why improper handling is as damaging as poor sourcing.
Semaglutide from Compounding Pharmacies: What You Need to Know
How compounded semaglutide differs from brand-name Ozempic/Wegovy, what FDA regulations apply, and how to access it legally through physician supervision.
Peptide Purity Testing Methods: HPLC, Mass Spectrometry, and What They Measure
A technical guide to the analytical methods used to verify peptide purity — what HPLC measures, what mass spectrometry confirms, and why both are necessary.
Top Peptide Vendors 2026: Our Ranked Review
Our independent ranking of peptide sourcing options in 2026 — from physician-supervised clinical protocols to research chemical vendors, with quality criteria and ratings.
What to Look for in a Peptide Vendor: 8 Non-Negotiable Quality Criteria
The 8 criteria that separate legitimate peptide vendors from fraudulent ones — and why physician-supervised clinical protocols satisfy all of them.