Peptide database

85 research peptides with mechanisms, sequences, and linked studies — each backed by PubMed citations.

NAD+46728 refs
Anti-Aging & Longevity

Essential redox cofactor and sirtuin/PARP substrate whose restoration is studied for mitochondrial and metabolic aging.

P2141061 refs
Cognitive & Neuroprotective

CNTF-derived peptidergic compound that promotes neurogenesis and reduces tau pathology in preclinical Alzheimer's models.

Somatostatin35107 refs
Growth Hormone Peptides

Endogenous cyclic peptide that inhibits GH, insulin, glucagon, and gastric secretion via SSTR1-5 receptors.

Oxytocin29178 refs
Hormonal & Endocrine

Nonapeptide posterior pituitary hormone driving uterine contraction and milk letdown; studied intranasally for social cognition.

VIP27403 refs
Healing & Recovery

28-aa neuropeptide acting on VPAC1/2 receptors; vasodilatory, bronchodilatory, and anti-inflammatory.

Ghrelin13008 refs
Growth Hormone Peptides

Endogenous 28-aa 'hunger hormone' from the stomach; activates GHS-R1a to stimulate GH release and appetite.

Octreotide9301 refs
Clinical Therapeutics

Long-acting somatostatin analog that inhibits GH, glucagon, and gut hormone secretion; used for acromegaly and neuroendocrine tumors.

Liraglutide5511 refs
Metabolic & Weight

Once-daily acylated GLP-1 receptor agonist for type 2 diabetes and chronic weight management.

Semaglutide5126 refs
Metabolic & Weight

Long-acting GLP-1 receptor agonist that improves glycemic control, slows gastric emptying, and reduces appetite.

Desmopressin4239 refs
Hormonal & Endocrine

Selective V2-receptor vasopressin analog that concentrates urine; used for diabetes insipidus, nocturnal enuresis, and bleeding disorders.

PACAP-383114 refs
Healing & Recovery

38-aa neuropeptide of the VIP/secretin family acting on PAC1 receptors; neuroprotective and vasoregulatory.

Teriparatide3006 refs
Clinical Therapeutics

Recombinant PTH(1-34) that, given intermittently, stimulates osteoblastic bone formation; approved for severe osteoporosis.

Exenatide2823 refs
Metabolic & Weight

Exendin-4-based GLP-1 receptor agonist from Gila monster venom; first-in-class incretin mimetic.

LL-372508 refs
Immune Modulation

Human cathelicidin antimicrobial peptide with broad-spectrum antibacterial, immunomodulatory, and wound-healing activity.

Leuprolide2340 refs
Hormonal & Endocrine

GnRH agonist that suppresses gonadotropin and sex-steroid production after initial stimulation; used in prostate cancer, endometriosis, and precocious puberty.

Tirzepatide2273 refs
Metabolic & Weight

Dual GIP/GLP-1 receptor agonist delivering potent glucose lowering and weight reduction.

Orexin-A2017 refs
Cognitive & Neuroprotective

33-aa hypothalamic neuropeptide acting on OX1/OX2 receptors to promote wakefulness and arousal.

Dulaglutide1252 refs
Metabolic & Weight

Once-weekly GLP-1 receptor agonist fused to an IgG4 Fc fragment for extended half-life.

Lanreotide1227 refs
Clinical Therapeutics

Depot somatostatin analog inhibiting GH/IGF-1 and neuroendocrine secretion; approved for acromegaly and GEP-NETs.

Triptorelin998 refs
Hormonal & Endocrine

Long-acting GnRH agonist that after initial flare downregulates pituitary receptors, suppressing sex hormones for prostate cancer and endometriosis.

Enfuvirtide828 refs
Clinical Therapeutics

36-aa HIV gp41 fusion inhibitor that blocks viral entry into CD4 cells; first-in-class antiretroviral fusion inhibitor.

Icatibant770 refs
Clinical Therapeutics

Selective bradykinin B2 receptor antagonist decapeptide approved for acute attacks of hereditary angioedema.

Lixisenatide719 refs
Metabolic & Weight

Short-acting exendin-4-based GLP-1 receptor agonist with pronounced gastric-emptying delay.

GHRP-6636 refs
Growth Hormone Peptides

First-generation ghrelin receptor agonist hexapeptide that stimulates GH release and strongly increases appetite.

Cerebrolysin629 refs
Cognitive & Neuroprotective

Porcine brain-derived peptide preparation with neurotrophic-factor-like activity studied in stroke, TBI, and dementia.

Thymosin Alpha-1618 refs
Immune Modulation

28-aa thymic peptide that enhances T-cell maturation and TLR signaling; approved in many countries for hepatitis and as an immune adjuvant.

Thymosin Beta-4599 refs
Healing & Recovery

43-aa actin-sequestering peptide that drives cell migration, angiogenesis, and repair in cardiac, corneal, and dermal tissue.

Humanin534 refs
Anti-Aging & Longevity

Mitochondrial-derived 24-aa peptide with cytoprotective, anti-apoptotic, and insulin-sensitizing effects in aging and neurodegeneration models.

Linaclotide465 refs
Gut & GI

Guanylate cyclase-C agonist 14-aa peptide that increases intestinal fluid secretion and transit; approved for IBS-C and chronic constipation.

Pramlintide443 refs
Metabolic & Weight

Amylin analog adjunct to insulin that slows gastric emptying, suppresses glucagon, and increases satiety.

Abaloparatide389 refs
Clinical Therapeutics

PTHrP(1-34) analog that selectively favors bone anabolism with less hypercalcemia than teriparatide; approved for osteoporosis.

Thymulin374 refs
Immune Modulation

Zinc-dependent thymic nonapeptide that regulates T-cell differentiation and has analgesic and anti-inflammatory effects.

Teduglutide353 refs
Gut & GI

GLP-2 receptor agonist that promotes intestinal mucosal growth and absorption; approved for short bowel syndrome.

Kisspeptin-10312 refs
Sexual Health

KISS1R agonist decapeptide that triggers hypothalamic GnRH release, upstream regulator of reproductive hormone axis.

Gonadorelin295 refs
Hormonal & Endocrine

Synthetic GnRH decapeptide that stimulates pituitary LH and FSH release; used diagnostically and to support gonadal function.

Hexarelin289 refs
Growth Hormone Peptides

Potent GHRP-family ghrelin receptor agonist with studied cardioprotective effects independent of GH release.

FGL260 refs
Cognitive & Neuroprotective

NCAM-derived FG-loop peptide that activates FGFR1 to enhance synaptic plasticity and memory in animal models.

MOTS-c246 refs
Metabolic & Weight

Mitochondrial-derived 16-aa peptide that activates AMPK and improves insulin sensitivity and metabolic homeostasis.

SS-31 (Elamipretide)213 refs
Anti-Aging & Longevity

Mitochondria-targeting tetrapeptide that binds cardiolipin on the inner membrane to stabilize cristae and restore ATP production.

BPC-157211 refs
Healing & Recovery

Gastric-juice-derived pentadecapeptide that promotes angiogenesis (VEGF) and tissue repair via FAK-paxillin and NO-system modulation.

Semax206 refs
Cognitive & Neuroprotective

ACTH(4-10)-derived heptapeptide that elevates BDNF and modulates the melanocortin system; used clinically in Russia for stroke and cognition.

GHRP-2204 refs
Growth Hormone Peptides

Synthetic hexapeptide ghrelin receptor agonist that potently stimulates GH secretion; also raises appetite, cortisol, and prolactin.

Cortexin202 refs
Cognitive & Neuroprotective

Bovine cortex-derived polypeptide complex used clinically in Eastern Europe for encephalopathy and cognitive disorders.

Mechano Growth Factor (MGF)194 refs
Muscle & Performance

Mechanically activated IGF-1 splice variant that activates muscle satellite cells for repair and hypertrophy.

Melanotan II194 refs
Sexual Health

Non-selective melanocortin receptor agonist that stimulates melanogenesis (tanning) and increases libido via MC1R/MC4R.

Retatrutide154 refs
Metabolic & Weight

Triple GIP/GLP-1/glucagon receptor agonist in phase 3 trials showing the largest weight reductions of any incretin therapy to date.

Plecanatide124 refs
Gut & GI

Uroguanylin-analog GC-C agonist that promotes pH-dependent intestinal fluid secretion; approved for chronic idiopathic constipation and IBS-C.

Melanotan I (Afamelanotide)104 refs
Sexual Health

Selective MC1R agonist approved (Scenesse) to prevent phototoxicity in erythropoietic protoporphyria by stimulating eumelanin.

PT-141 (Bremelanotide)94 refs
Sexual Health

Melanocortin MC4R agonist approved for hypoactive sexual desire disorder; acts centrally to increase sexual arousal.

Tesamorelin93 refs
Growth Hormone Peptides

Stabilized GHRH analog approved for HIV-associated lipodystrophy; reduces visceral adipose tissue via GH/IGF-1 axis stimulation.

Cagrilintide90 refs
Metabolic & Weight

Long-acting amylin analog in trials for obesity, including combination with semaglutide (CagriSema).

KPV88 refs
Healing & Recovery

C-terminal tripeptide of α-MSH with anti-inflammatory action via PepT1 uptake and NF-κB inhibition, studied in IBD models.

Thymogen88 refs
Immune Modulation

Synthetic dipeptide (Glu-Trp) immunomodulator used in Eastern Europe to restore immune balance during infection and immunodeficiency.

Noopept83 refs
Cognitive & Neuroprotective

Proline-containing dipeptide prodrug of cycloprolylglycine; increases BDNF/NGF expression with nootropic and anxiolytic effects.

Davunetide80 refs
Cognitive & Neuroprotective

8-aa fragment of activity-dependent neuroprotective protein (ADNP) that stabilizes microtubules; trialed in PSP and schizophrenia.

Nerinetide75 refs
Cognitive & Neuroprotective

PSD-95 inhibitor peptide that uncouples NMDA-receptor excitotoxic signaling; studied in acute ischemic stroke (ESCAPE-NA1).

GHK-Cu74 refs
Healing & Recovery

Copper-binding tripeptide that stimulates collagen synthesis, wound healing, and remodeling gene expression.

Selank68 refs
Cognitive & Neuroprotective

Tuftsin-derived heptapeptide with anxiolytic and nootropic effects via GABAergic modulation and enkephalin stabilization.

Survodutide67 refs
Metabolic & Weight

Dual glucagon/GLP-1 receptor agonist in phase 3 for obesity and MASH.

Epitalon63 refs
Anti-Aging & Longevity

Khavinson tetrapeptide reported to activate telomerase and normalize pineal melatonin rhythms in aging models.

Ipamorelin49 refs
Growth Hormone Peptides

Selective ghrelin receptor (GHS-R1a) agonist that stimulates GH release with minimal effect on cortisol or prolactin.

Larazotide Acetate44 refs
Gut & GI

Tight-junction-regulating octapeptide that reduces intestinal permeability ('leaky gut'); trialed as an adjunct for celiac disease.

Mazdutide44 refs
Metabolic & Weight

GLP-1/glucagon dual receptor agonist in late-stage trials for obesity and type 2 diabetes.

CJC-1295 (no DAC)33 refs
Growth Hormone Peptides

Tetrasubstituted GHRH(1-29) analog with improved enzymatic stability that amplifies pulsatile GH secretion.

Macimorelin33 refs
Growth Hormone Peptides

Orally active ghrelin receptor agonist approved as a diagnostic agent for adult growth hormone deficiency.

CJC-1295 DAC32 refs
Growth Hormone Peptides

Albumin-binding (DAC) GHRH analog producing sustained, multi-day elevation of GH and IGF-1.

IGF-1 DES29 refs
Muscle & Performance

Truncated IGF-1 variant with high local potency and short half-life, studied for site-specific muscle growth.

Follistatin 34428 refs
Muscle & Performance

Activin-binding glycoprotein that antagonizes myostatin (GDF-8) to release the brake on skeletal muscle growth.

Sermorelin24 refs
Growth Hormone Peptides

GHRH(1-29) analog that binds pituitary GHRH receptors to stimulate pulsatile growth hormone release.

ARA-29023 refs
Healing & Recovery

Erythropoietin-derived 11-aa peptide targeting the innate repair receptor (EPOR/CD131) for tissue protection without erythropoiesis.

hGH Fragment 176-19123 refs
Metabolic & Weight

C-terminal fragment of human growth hormone studied for lipolytic activity independent of IGF-1 signaling.

FOXO4-DRI18 refs
Anti-Aging & Longevity

D-retro-inverso peptide that disrupts FOXO4-p53 interaction to selectively trigger apoptosis in senescent cells (senolytic).

Dihexa17 refs
Cognitive & Neuroprotective

Angiotensin IV-derived small peptide that potentiates HGF/c-Met signaling to drive synaptogenesis in preclinical cognition models.

IGF-1 LR316 refs
Muscle & Performance

Long-acting IGF-1 analog with reduced IGFBP binding, prolonging activation of the IGF-1 receptor to drive muscle hypertrophy.

TB-50016 refs
Healing & Recovery

Synthetic version of the actin-binding region of thymosin β4; promotes cell migration, angiogenesis, and wound repair.

B7-3315 refs
Healing & Recovery

Single-chain relaxin-2 analog that activates RXFP1 to reduce organ fibrosis without the full hormone's complexity.

Matrixyl (Palmitoyl Pentapeptide-4)15 refs
Skin & Cosmetic

Matrikine signal peptide that stimulates collagen I, III, and fibronectin synthesis to reduce wrinkle depth in topical use.

Pinealon15 refs
Cognitive & Neuroprotective

Khavinson bioregulator tripeptide (EDR) proposed to modulate neuronal gene expression and protect against oxidative stress.

ACE-031 (Ramatercept)12 refs
Muscle & Performance

Soluble ActRIIB-Fc decoy receptor that sequesters myostatin and related ligands; trialed in muscular dystrophy before discontinuation.

AOD-960411 refs
Metabolic & Weight

Modified C-terminal hGH fragment designed to stimulate lipolysis without growth-promoting or glycemic effects.

Adipotide3 refs
Metabolic & Weight

Proapoptotic peptidomimetic that targets the blood supply of white adipose tissue, causing fat reduction in primate studies.

Argireline (Acetyl Hexapeptide-3)
Skin & Cosmetic

SNARE-mimetic hexapeptide that mildly inhibits catecholamine/acetylcholine release to soften expression lines ('topical Botox').

MK-677 (Ibutamoren)
Growth Hormone Peptides

Orally active non-peptide ghrelin mimetic that sustains elevated GH and IGF-1 levels for 24 hours per dose.

Pentadeca Arginate (PDA)
Healing & Recovery

Arginate-salt analog of the BPC-157 sequence marketed for tissue repair; minimal independent published data.

SNAP-8 (Acetyl Octapeptide-3)
Skin & Cosmetic

Octapeptide extension of Argireline that competes with SNAP-25 in the SNARE complex to reduce muscle contraction and wrinkles.