Research & Guides

Evergreen, evidence-first explainers — how to read the data, source safely, and use the tools. Written for researchers who want the reasoning, not the hype.

Sourcing & Safety

Where to Buy Peptides Safely: How to Vet a Source

Thinking about where to buy peptides? This guide explains how to vet a research-peptide seller on hard signals — third-party lab testing, certificates of analysis, reviews, and enforcement history — so you can tell a trusted source from a risky one.

May 28, 2026 8 min read
Sourcing & Safety

How to Read a Peptide Certificate of Analysis (COA)

A certificate of analysis (COA) is a lab document reporting a peptide batch’s identity and purity. Here’s how to read one, which tests matter, and the red flags that should make you walk away.

May 20, 2026 7 min read
Evidence

Understanding Peptide Evidence Tiers

Not all evidence is equal. This guide explains the four evidence tiers used across the PeptidesHub compound database — from human randomized controlled trials down to theoretical mechanisms — and how to weigh them.

May 22, 2026 6 min read
Tools

Peptide Reconstitution Math, Explained

Reconstitution is just arithmetic: vial amount, water volume, and the resulting concentration. This guide walks through the formulas step by step so the numbers stop being mysterious. Math only — not medical advice.

May 25, 2026 5 min read