Skip to main content
PeptiDex
  • Library
  • Stacks
  • Tools
  • Vendors
  • Blog
  • About
Start
§ Stay Current

The Peptide Brief.

Bi-weekly research updates, vendor news, and editorial analysis. No spam.

No spam. Unsubscribe anytime. We respect your inbox.

PeptiDex

The independent, evidence-based peptide research index. Trusted by researchers worldwide for unbiased education and verified sourcing.

§ Learn

  • Peptide 101
  • Library
  • Evidence Dashboard
  • Blog
  • FAQ

§ Tools

  • Cycle Planner
  • Evidence Dashboard
  • Peptide Comparison
  • Price Comparison
  • Reconstitution Calc
  • COA Analyzer

§ Source

  • Vendor Reviews
  • Amino Club Review
  • COA Library
  • Peptide Stacks

§ About

  • Our Mission
  • Editorial Policy
  • Medical Disclaimer
  • Contact
Last reviewed: May 4, 2026 · PeptiDex Editorial Team
© 2026 PeptiDex. All rights reserved.
PrivacyTermsDisclosures
Home/Library
§ The Library

33 research
peptides, indexed.

Every compound is categorized by mechanism of action and graded by the strength of available clinical evidence. Filter, search, or browse the full catalog.

33 compounds
26 mechanism classes
650+ studies indexed
4 FDA-approved
33 shown
Evidence:
§ Trending in 2026

The peptides researchers are talking about.

Trending
Mitochondrial Peptide

MOTS-c

Energy, metabolism, fat loss, longevity

→
FDATrending
Melanocortin Agonist

PT-141

Sexual arousal, libido

→
Trending
Triple Agonist (GLP-1/GIP/Glucagon)

Retatrutide

Superior body recomposition, massive fat loss, metabolic health

→
Trending
Mitochondrial Peptide

SS-31

Energy, recovery, neuroprotection

→
Trending
Small Molecule

Tesofensine

Extreme fat loss and appetite suppression without GLP-1 side effects

→

Peptide Blends

10popular combinations — BPC/TB-500, CJC/Ipa & more

§ Full Index — A to Z
GH Fragment

AOD-9604

  • Fat loss without GH side effects
Moderate→
Body Protective Compound

BPC-157

  • Injury recovery
  • gut healing
  • tissue repair
  • reduced inflammation
Preclinical→
Metabolic

Cagrilintide

  • Weight loss
  • appetite reduction
  • glycemic control
Very Strong→
GHRH Analog

CJC-1295

  • Muscle growth
  • fat loss
  • recovery
Moderate→
Sleep Peptide

DSIP

  • Improved sleep quality
  • stress reduction
Very Strong→
Telomerase Activator

Epitalon

  • Anti-aging
  • longevity
  • sleep
Strong→
Myostatin Inhibitor

Follistatin-344

  • Muscle hypertrophy
  • strength
Moderate→
Copper Peptide

GHK-Cu

  • Skin repair
  • anti-aging
  • wound healing
Moderate→
GHRP

GHRP-2

  • Strongest GH release of standard GHRPs
  • muscle growth
  • anti-aging
  • recovery
Strong→
GHRP

GHRP-6

  • Potent GH release
  • appetite stimulation
  • muscle growth
  • recovery
  • gastric motility
Moderate→
Antioxidant

Glutathione

  • Detoxification
  • antioxidant defense
  • immune support
  • skin brightening
Strong→
GHRP

Hexarelin

  • Most potent GH release of any GHRP
  • cardioprotection
  • muscle growth
  • recovery
Strong→
Growth Factor

IGF-1 LR3

  • Muscle growth
  • recovery
  • hyperplasia
Moderate→
GHRP

Ipamorelin

  • GH release
  • muscle growth
  • recovery without cortisol spike
Moderate→
Reproductive Peptide

Kisspeptin-10

  • LH/FSH stimulation
  • testosterone support
  • fertility enhancement
  • HPG axis activation
Very Strong→
Anti-Inflammatory

KPV

  • Gut/injury healing
  • inflammation reduction
Very Strong→
Antimicrobial Peptide

LL-37

  • Broad-spectrum antimicrobial
  • anti-biofilm
  • wound healing
  • immune modulation
  • anti-inflammatory
Moderate→
Melanocortin Agonist

Melanotan II

  • Tanning
  • libido enhancement
Moderate→
GH Secretagogue (Oral)

MK-677

  • Sustained GH/IGF-1 elevation
  • muscle growth
  • improved sleep
  • bone density
  • oral dosing convenience
Strong→
Mitochondrial Peptide

MOTS-c

  • Energy
  • metabolism
  • fat loss
  • longevity
Moderate→
Longevity

NAD+

  • Cellular energy
  • DNA repair
  • longevity
Strong→
Melanocortin Agonist
FDA

PT-141

  • Sexual arousal
  • libido
Very Strong→
Triple Agonist (GLP-1/GIP/Glucagon)

Retatrutide

  • Superior body recomposition
  • massive fat loss
  • metabolic health
Strong→
Anxiolytic Peptide

Selank

  • Anxiety reduction
  • mental clarity
  • mood
Moderate→
GLP-1 Agonist
FDA

Semaglutide

  • Fat loss
  • appetite control
  • cardiovascular benefits
Very Strong→
Cognitive Peptide

Semax

  • Mental clarity
  • focus
  • neuroprotection
Moderate→
GHRH Analog

Sermorelin

  • Muscle growth
  • recovery
  • sleep
  • anti-aging
Strong→
Mitochondrial Peptide

SS-31

  • Energy
  • recovery
  • neuroprotection
Moderate→
Thymosin Beta-4 Fragment

TB-500

  • Muscle/tissue repair
  • flexibility
  • injury recovery
Moderate→
GHRH Analog
FDA

Tesamorelin

  • Visceral fat reduction
  • body recomposition
Very Strong→
Immune Peptide

Thymosin Alpha-1

  • Immune support
  • antiviral
  • recovery
Strong→
Dual Agonist (GLP-1/GIP)
FDA

Tirzepatide

  • Weight loss
  • body recomposition
  • glycemic control
Very Strong→
Small Molecule

Tesofensine

  • Extreme fat loss and appetite suppression without GLP-1 side effects
Strong→
§ About the Directory

This comprehensive library indexes synthetic amino acid sequences specifically formulated for in-vitro laboratory research. It aggregates pharmacokinetic data, half-life degradation metrics, and clinical trial outcomes for educational referencing. None of the listed compounds are FDA approved for human therapeutic consumption unless explicitly labeled. Always verify chemical purity via rigorous third-party HPLC/MS Certificates of Analysis prior to experimental utilization.

⚠ Educational only · Not medical advice · Most peptides are research-only / not FDA-approved