The Peptide
Encyclopedia
The most comprehensive, research-backed guide to peptides on the internet. From BPC-157 to Retatrutide, we cover 100+ peptides with detailed profiles, dosage guides, clinical evidence, and expert analysis.
Browse by Category
Explore peptides organized by their primary use case. Each category includes comprehensive guides, individual peptide profiles, and comparison charts.
Weight Loss Peptides
GLP-1 agonists, triple agonists, and metabolic peptides for body composition
15+ peptidesMuscle Growth Peptides
Growth hormone secretagogues and anabolic peptides for lean mass
12+ peptidesRecovery & Healing
Tissue repair peptides for tendons, ligaments, muscles, and gut health
10+ peptidesAnti-Aging Peptides
Longevity and cellular rejuvenation peptides backed by research
8+ peptidesSkin & Cosmetic
Copper peptides, collagen boosters, and skin rejuvenation compounds
10+ peptidesGrowth Hormone
GH secretagogues and releasing peptides for natural GH optimization
12+ peptidesNootropic Peptides
Cognitive enhancement and neuroprotective peptides
6+ peptidesPeptide Therapy
Complete guide to peptide therapy protocols and administration
Guide peptidesFeatured Peptides
In-depth profiles of the most researched and discussed peptides
BPC-157
Recovery & HealingA 15-amino acid peptide derived from human gastric juice, extensively studied for its regenerative and protective properties across multiple tissue types.
GHK-Cu
Anti-AgingA naturally occurring copper-binding tripeptide with powerful regenerative, anti-aging, and wound-healing properties backed by decades of research.
Retatrutide
Weight LossA next-generation triple agonist targeting GLP-1, GIP, and glucagon receptors, showing unprecedented weight loss results in clinical trials.
Tirzepatide
Weight LossA dual GLP-1/GIP receptor agonist developed by Eli Lilly, FDA-approved for both Type 2 diabetes (Mounjaro) and obesity (Zepbound), showing up to 22.5% weight loss in trials.
Semaglutide
Weight LossThe GLP-1 receptor agonist that started the weight loss drug revolution, FDA-approved as Ozempic (diabetes) and Wegovy (obesity), with proven cardiovascular benefits.
TB-500
Recovery & HealingA synthetic version of a naturally occurring 43-amino acid peptide (Thymosin Beta-4) known for promoting cell migration, wound healing, and tissue repair.
Tesamorelin
Growth HormoneAn FDA-approved growth hormone-releasing hormone (GHRH) analog that stimulates natural GH production, primarily used for reducing visceral fat and improving body composition.
AOD-9604
Weight LossA modified fragment of human growth hormone (amino acids 176-191) developed specifically for fat loss without the metabolic side effects of full HGH.
MOTS-c
Anti-AgingA mitochondrial-derived peptide that acts as an exercise mimetic, regulating metabolic homeostasis and showing promise for longevity, insulin sensitivity, and age-related decline.
Essential Guides
Start here if you are new to peptides. Our comprehensive guides break down everything you need to know.
What Are Peptides? The Complete Beginner's Guide
Everything you need to know about peptides — from basic science to practical applications.
Read guide →Peptides for Weight Loss: A Comprehensive 2026 Guide
How GLP-1 agonists, triple agonists, and other peptides are transforming weight management.
Read guide →Are Peptides Safe? What the Research Says
An evidence-based look at peptide safety, side effects, and what to watch for.
Read guide →Tirzepatide vs Semaglutide: Complete Comparison
Head-to-head comparison of the two most popular weight loss drugs on every metric that matters.
Read guide →Stay Updated on Peptide Research
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