Peptide Research Guides
Educational resources for safe and informed peptide research.
How to Read a COA
A Certificate of Analysis (COA) is the most important document a peptide vendor can provide. Learn what to look for and what red flags to avoid.
Reconstitution Basics
Step-by-step guide to reconstituting lyophilized peptides safely and accurately. Covers bacteriostatic water, dosing calculations, and storage.
How to Choose a Peptide Vendor: Red Flags and Quality Indicators
The peptide market has no FDA oversight — quality varies dramatically. Learn how to evaluate COAs, verify third-party testing, spot red flags, and identify vendors you can trust.
How to Store and Handle Research Peptides Properly
Even the highest-purity peptide can degrade with improper storage. A complete guide to lyophilized storage, reconstitution, temperature requirements, and shelf life.
Choosing a Vendor
What separates a trustworthy peptide supplier from a bad one? This guide covers the key criteria for evaluating vendors.
Where to Buy Peptides Online: Vendor Landscape 2026
A buyer-side map of the online peptide vendor market — payment risk, COA expectations, shipping origin, and how the directory tracks 83 verified vendors.
Peptides vs SARMs vs Prohormones: What Is the Difference?
Category-level explainer of the three compound classes most often confused in research-compound forums — chemistry, mechanism class, and why they are not interchangeable.
Domestic vs Overseas Peptide Vendors: Shipping, Customs, and Trust
Operational trade-offs between buying from US-domestic peptide vendors versus overseas suppliers — shipping speed, customs risk, payment friction, and vendor incentives.
Peptide Cost Per Milligram: How to Compare Vendors Like a Buyer
Buyer-side guide to comparing peptide prices on a true $/mg basis — why list price misleads, how to normalize across vial sizes, and which math actually matters.
What Is Bacteriostatic Water? Why Peptide Researchers Use It
Chemistry-of-the-solvent explainer covering bacteriostatic water — what makes it bacteriostatic, how it differs from sterile water for injection, shelf-life, and why peptide work uses it specifically.
The Peptide Playbook
The complete guide to peptide research, vendor evaluation, and protocols.
Everything in these guides, plus detailed protocols, dosing guidance, and the full vendor database.
Get The Peptide Playbook →