The Peptide Index
Evidence-based research guides, protocols, and everything you need to navigate peptide research in 2026
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The Wolverine Stack: BPC-157 + TB-500 Complete Protocol Guide
Complete guide to the Wolverine Stack combining BPC-157 and TB-500 for accelerated injury healing. Dosing protocols, timeline expectations, and trusted sources. ...more
Healing Peptides , Featured
January 10, 2026•8 min read
CJC-1295/Ipamorelin: Complete Guide to Growth Hormone Optimization
A synergistic peptide combination that stimulates natural growth hormone production through complementary mechanisms. This guide covers the science, protocols, timing strategies, and realistic expecta... ...more
Growth Hormone Secretagogues , Featured
January 09, 2026•12 min read
BPC-157: The Complete Guide to the Healing Peptide
A naturally occurring gastric peptide that promotes healing across multiple tissue types. This guide covers the science, protocols, timeline expectations, and safety considerations for BPC-157 researc... ...more
Healing Peptides , Featured
January 09, 2026•11 min read
How to Reconstitute Peptides: Step-by-Step Guide
Learn how to reconstitute peptides step-by-step. Add bacteriostatic water to lyophilized powder, calculate doses, and store properly for research use. ...more
Beginner Guides , Featured
January 09, 2026•8 min read
What Are Peptides? A Beginner's Guide to Peptide Research
Peptides are short amino acid chains that act as signaling molecules. Learn what peptides are, how they work, major categories, and key considerations for research. ...more
Beginner Guides , Featured
January 09, 2026•9 min read
All Research Guides
Peptides in 2026: What's Coming and What to Watch
Complete guide to peptide developments in 2026: oral GLP-1 approvals, retatrutide Phase 3 results, muscle-sparing combinations, FDA regulatory shifts, and the full pipeline of next-generation compound... ...more
Beginner Guides
February 15, 2026•9 min read
Why I Will Never Recommend Ozempic: A Personal Story and Clinical Reality Check
Personal story and clinical evidence on Ozempic dangers including gastroparesis, gallbladder disease, vision loss, and muscle wasting. Why semaglutide may be the wrong choice for diabetics despite mar... ...more
Beginner Guides
February 14, 2026•11 min read
Semaglutide vs. Tirzepatide vs. Retatrutide: The Real Differences Explained
Honest comparison of semaglutide, tirzepatide, and retatrutide with clinical trial data, mechanism differences, and practical considerations. Educational guide explaining why triple-agonist retatrutid... ...more
Beginner Guides
February 13, 2026•11 min read
Retatrutide: A Different Approach to Metabolic Health
Beginner-friendly guide to Retatrutide for metabolic optimization and longevity. Simple explanations, easy analogies, and a personal low-dose research protocol focused on sustainable health rather tha... ...more
Longevity Peptides
February 12, 2026•13 min read
MK-677 (Ibutamoren): The Oral Growth Hormone Secretagogue That Changed the Game
Complete MK-677 (Ibutamoren) guide covering ghrelin receptor mechanisms, clinical trial evidence, honest safety assessment including insulin sensitivity concerns, dosing protocols, and stacking strate... ...more
Growth Hormone Secretagogues
February 06, 2026•17 min read
Sermorelin: The Original Growth Hormone Releasing Peptide That Still Holds Up in 2025
Complete Sermorelin guide covering GHRH mechanisms, 2025 GLP-1 muscle preservation protocols, dosing, stacking strategies, and honest comparison to CJC-1295. ...more
Growth Hormone Secretagogues
February 05, 2026•16 min read
SLU-PP-332: The Exercise Mimetic That Programs Your Cells to Burn Fat and Build Endurance
Complete guide to SLU-PP-332, the ERR agonist exercise mimetic. Covers mitochondrial biogenesis mechanisms, 2025 research evidence, practical dosing protocols, the critical overspin concept, and 5 adv... ...more
Longevity Peptides
February 05, 2026•18 min read
Injectable L-Carnitine: The Metabolic Shuttle Your Mitochondria Are Starving For
Complete guide to injectable L-Carnitine covering the carnitine shuttle, androgen receptor upregulation, TMAO avoidance, clinical dosing tiers from cardiac health to body recomposition, and advanced s... ...more
Longevity Peptides
February 04, 2026•18 min read
Tesofensine: The Triple Reuptake Inhibitor That Outperformed Every Weight Loss Drug in Clinical Trials
Complete guide to tesofensine, the triple reuptake inhibitor that doubled the weight loss of every approved drug in clinical trials. Mechanisms, protocols, stacking strategies, and safety. ...more
Beginner Guides
February 03, 2026•18 min read
BPC-157 vs TB-500 vs GHK-Cu: Which Healing Peptide Do You Actually Need?
Complete comparison of BPC-157, TB-500, and GHK-Cu healing peptides. Head-to-head analysis covering mechanisms, injury matching, protocols, stacking strategies, cost comparison, and when to use each a... ...more
Healing Peptides
February 02, 2026•16 min read
LL-37: The Human Antimicrobial Defense Peptide
Comprehensive guide to LL-37, the only human cathelicidin antimicrobial peptide. Covers membrane disruption mechanisms, biofilm destruction, wound healing promotion, immune modulation, and practical p... ...more
Longevity Peptides
January 31, 2026•15 min read
Gonadorelin: The Natural Testosterone Restart Peptide
Comprehensive guide to Gonadorelin (GnRH), the natural testosterone restart peptide. Covers the HPG axis mechanism, pulsatile dosing requirements, post-cycle therapy protocols, fertility preservation,... ...more
Sexual Health
January 30, 2026•14 min read
Oxytocin: The Social Bonding and Stress Regulation Peptide
Comprehensive guide to Oxytocin, the social bonding and stress regulation peptide. Covers mechanisms of social modulation, context-dependent effects, clinical research on anxiety and PTSD, dosing prot... ...more
Sexual Health
January 29, 2026•14 min read
GHRP-6: The Original Appetite-Amplifying Growth Hormone Secretagogue
Comprehensive guide to GHRP-6, the original growth hormone releasing peptide. Covers the unique appetite-stimulating mechanism, clinical research, dosing protocols, comparison to newer GHRPs, and stra... ...more
Growth Hormone Secretagogues
January 28, 2026•15 min read
Hexarelin: The Cardiac Protector Among Growth Hormone Secretagogues
Comprehensive guide to Hexarelin, the only GH secretagogue with direct cardiac protection. Covers dual mechanism (GHS-R + CD36), dosing protocols, cycling requirements, stacking strategies, and cardio... ...more
Growth Hormone Secretagogues
January 27, 2026•13 min read
P21: The Complete Guide to the Neurogenesis Amplifier
Complete guide to P21, the CNTF mimetic peptide that amplifies endogenous neurogenesis by neutralizing blocking antibodies. Covers mechanisms, the BDNF/TrkB pathway, Alzheimer's research, dosing proto... ...more
Cognitive Peptides
January 26, 2026•14 min read
Dihexa: The Complete Guide to the Synapse Builder
Complete guide to Dihexa, the potent HGF/c-Met activator that stimulates synaptogenesis and neurogenesis. Covers mechanisms, dosing protocols, safety considerations including cancer risk discussion, a... ...more
Cognitive Peptides
January 25, 2026•16 min read
5-Amino-1MQ: The Complete Guide to the NAD+ Thief Stopper
Complete guide to 5-Amino-1MQ, the NNMT inhibitor that preserves NAD+ to boost metabolism, accelerate fat loss, and enhance cellular energy. Covers mechanisms, dosing protocols, stacking strategies, a... ...more
Longevity Peptides
January 24, 2026•14 min read
Pinealon: Complete Guide to the Circadian Reset Peptide
Complete guide to Pinealon, the bioregulator peptide that restores pineal gland function and circadian rhythms. Covers mechanisms, research evidence, protocols, stacking strategies with DSIP and Epita... ...more
Longevity Peptides
January 23, 2026•14 min read
Humanin: Complete Guide to the Mitochondrial Longevity Signal
Complete guide to Humanin, the mitochondrial-derived peptide linked to centenarian longevity. Covers mechanisms, research evidence, protocols, stacking strategies, and realistic expectations for healt... ...more
Longevity Peptides
January 22, 2026•15 min read
VIP (Vasoactive Intestinal Peptide): The Complete Guide to the Master Inflammation Regulator
Complete guide to VIP (Vasoactive Intestinal Peptide), the master inflammation regulator used as the final step in CIRS/mold illness treatment. Covers mechanisms, Shoemaker Protocol integration, dosin... ...more
Immune Peptides
January 21, 2026•15 min read