AN INDEPENDENT, EVIDENCE-BASED EDUCATIONAL RESOURCE WRITTEN & MEDICALLY REVIEWED BY WILLIAM ASHFORD, MD

Peptides A–Z

Browse evidence-based profiles for 37 peptides — each with mechanism, documented uses, research summary, and current regulatory status.

AOD 9604

A synthetic peptide fragment of human Growth Hormone designed to stimulate fat breakdown without affecting blood sugar o

BPC-157

A synthetic peptide derived from a protective protein found in human gastric juice, widely researched for tissue healing

Bremelanotide

The clinical, FDA-approved pharmaceutical formulation of PT-141 used to treat Hypoactive Sexual Desire Disorder (HSDD).

CJC-1295

A synthetic GHRH analog that stimulates the pituitary gland to release growth hormone, often paired with DAC to extend i

Desmopressin

A synthetic vasopressin analog used clinically for central diabetes insipidus, nocturia in selected patients, and certai

DSIP

A naturally occurring neuropeptide that crosses the blood-brain barrier to promote deep delta-wave sleep and reduce phys

Enicepatide (CT-388)

Enicepatide (CT-388) profile covering its dual GLP-1/GIP mechanism, Roche/Carmot Phase 3 obesity research status, potent

Epithalon

A synthetic tetrapeptide designed to stimulate telomerase activity, restore melatonin levels, and increase lifespan in a

Exenatide

A GLP-1 receptor agonist originally derived from Gila monster exendin-4, used for type 2 diabetes and studied as a found

FOXO4-DRI

An experimental senolytic peptide designed to disrupt FOXO4-p53 interactions and selectively trigger apoptosis in senesc

GHK-Cu

A naturally occurring copper-binding tripeptide widely used in luxury cosmetics to promote collagen production and tissu

GHRP-2

A synthetic hexapeptide ghrelin receptor agonist studied for potent growth hormone release and endocrine testing applica

GHRP-6

A first-generation growth hormone secretagogue peptide known for stimulating GH release and appetite through ghrelin-rec

Gonadorelin

A synthetic form of native GnRH used diagnostically and therapeutically to stimulate pituitary LH and FSH release in sel

Hexarelin

A potent ghrelin receptor agonist studied for growth hormone release and possible cardioprotective signaling in pre-clin

Ipamorelin

A highly selective growth hormone secretagogue that triggers GH release without increasing cortisol, prolactin, or appet

Kisspeptin

A vital neuropeptide that acts as the master switch for the reproductive system, triggering the release of testosterone

KPV

A highly potent anti-inflammatory tripeptide derived from alpha-MSH, widely studied for inflammatory bowel disease and s

Liraglutide

A daily GLP-1 receptor agonist approved for type 2 diabetes and chronic weight management, with a long record of clinica

LL-37

A naturally occurring antimicrobial peptide that neutralizes bacteria, fungi, and viruses while modulating the inflammat

Melanotan II

A synthetic melanocortin agonist that stimulates melanin production for skin tanning while also inducing strong aphrodis

MOTS-c

A mitochondrial-derived peptide studied for metabolic stress resistance, insulin sensitivity, and exercise-like signalin

Oxytocin

A naturally occurring hypothalamic nonapeptide hormone clinically used in obstetrics and studied for social bonding, str

P21

An experimental neurogenic peptide analog studied for synaptic plasticity, neurogenesis, and cognition in animal models.

Petrelintide

Petrelintide profile covering Zealand Pharma’s long-acting amylin analog, Phase 2 obesity research status, potential ben

PT-141

An FDA-approved peptide that targets the central nervous system to treat sexual arousal disorders in both men and women.

Retatrutide

An investigational triple incretin receptor agonist being studied for obesity, fatty liver disease, and metabolic dysfun

Selank

A synthetic heptapeptide with potent anxiolytic (anti-anxiety) and nootropic properties, developed by the Russian Academ

Semaglutide

A highly successful, FDA-approved GLP-1 receptor agonist that regulates blood sugar, slows gastric emptying, and signifi

Semax

A synthetic peptide designed to boost cognitive function, memory, and neuroprotection, widely used in Eastern Europe for

Sermorelin

An FDA-approved synthetic GHRH fragment used clinically to diagnose and treat growth hormone deficiency in children and

SS-31

A mitochondria-targeted tetrapeptide designed to stabilize cardiolipin and improve mitochondrial energy production under

TB-500

A synthetic fraction of the naturally occurring peptide Thymosin Beta-4, known for its powerful role in cellular migrati

Tesamorelin

An FDA-approved, highly stable GHRH analog clinically proven to reduce stubborn visceral abdominal fat in HIV patients.

Thymosin Alpha-1

An immunomodulatory peptide that enhances the body's natural defense mechanisms against chronic infections and certain c

Tirzepatide

An FDA-approved incretin-based peptide medicine that activates both GIP and GLP-1 receptors for type 2 diabetes and chro

Triptorelin

A long-acting GnRH agonist used medically to suppress sex-hormone production in prostate cancer, endometriosis, and cent