PEPGAINS/GUIDES
◆ HOW-TO GUIDES

THE PRACTICAL GUIDES.

How to source quality peptides, read a COA, reconstitute a vial, inject safely, and store your compounds. The practical side of research. Updated as the field evolves.
EDUCATION8 min

How GLP-1 Agonists Actually Work (Simple Explanation)

A clear, jargon-free explanation of how medications like Ozempic, Wegovy, and Mounjaro cause weight loss.

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GUIDES10 min

How to Inject Peptides: A Beginner's Guide

Step-by-step instructions for subcutaneous peptide injections. Safety tips, technique, and common mistakes to avoid.

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EDUCATION9 min

Are Peptides Safe? What the Research Says

An honest look at peptide safety — FDA-approved vs research peptides, risks, and how to minimize them.

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EDUCATION11 min

Beginner's Guide to GLP-1 Peptides: Semaglutide vs Tirzepatide

Everything beginners need to know about GLP-1 peptides — how they work, key differences between semaglutide and tirzepatide, and what researchers report.

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GUIDES9 min

How to Read a Certificate of Analysis (COA)

Learn to evaluate peptide quality by understanding COAs — what to look for, red flags to avoid, and how to verify authenticity.

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GUIDES8 min

Peptide Storage Mistakes That Are Wasting Your Money

The most common peptide storage errors that destroy potency and waste your investment. Learn what to avoid and how to store peptides properly.

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EDUCATION9 min

Why Peptide Purity Matters: Understanding the 98%+ Standard

What peptide purity actually means, how it's tested, and why quality costs more but saves money long-term.

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GUIDES12 min

How to Reconstitute Peptides: Step-by-Step Guide (2026)

Complete guide to peptide reconstitution — equipment needed, step-by-step instructions, dosing calculations, storage tips, and common mistakes to avoid.

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GUIDES13 min

Best Peptides for Women: Complete Guide (2026)

Comprehensive guide to peptides for women — hormonal considerations, top peptides by goal, safety guidelines, and what female researchers should know.

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SOURCING10 min

FDA Peptide Reclassification 2026: What Actually Changed

Since 2023, the FDA has progressively tightened rules around compounding peptides. Here is what is legal, what is not, and what changed in 2025–2026.

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GUIDES8 min

Preserving Muscle On GLP-1s: Why It Matters, How To Do It

25–40% of weight lost on GLP-1s can come from muscle. Here's the protein + resistance training protocol that keeps you lean instead of skinny-fat.

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SOURCING8 min

Compounded Semaglutide In 2026: What Changed, What's Next

The FDA removed semaglutide from shortage in early 2025. Compounding pharmacies scrambled. Legal battles followed. Here is what actually happened and what to do.

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