Research Library
Peer-reviewed studies indexed on PubMed for every peptide we carry
Welcome to the Molecular Peptides Research Library — a curated collection of published, peer-reviewed research on the peptides we carry. Each section includes links to studies indexed on PubMed, the world’s largest biomedical literature database maintained by the National Library of Medicine. We encourage researchers to explore the primary literature and form their own understanding of these compounds.
🔬 Tissue Modeling & Cytoprotective Peptides
BPC-157 (Body Protection Compound)
A pentadecapeptide derived from human gastric juice, BPC-157 has been extensively studied for its cytoprotective properties and interactions with tissue modeling pathways in preclinical research models.
- Gastric pentadecapeptide BPC 157 and its role in accelerating musculoskeletal soft tissue healing — Cell Tissue Res, 2019 (PMID: 30915550)
- Stable Gastric Pentadecapeptide BPC 157 and Wound Healing — Front Pharmacol, 2021 (PMID: 34267654)
- Pentadecapeptide BPC 157 and the Central Nervous System — Neural Regen Res, 2022 (PMID: 34380875)
- Stable Gastric Pentadecapeptide BPC 157 and Striated, Smooth, and Heart Muscle — Biomedicines, 2022 (PMID: 36551977)
- Browse all BPC-157 studies on PubMed →
TB-500 (Thymosin Beta 4)
Thymosin Beta 4 is a naturally occurring 43-amino-acid peptide involved in cell migration and tissue modeling in preclinical research. TB-500 is a synthetic fragment of the active region.
- Thymosin beta-4 in antibacterial immunity and wound healing — Fish Shellfish Immunol, 2023 (PMID: 37689229)
- Thymosin beta-4 — A potential tool in healing middle ear lesions — Int Immunopharmacol, 2023 (PMID: 38706788)
- Thymosin beta 4: A potential novel adjunct treatment for bacterial keratitis — Int Immunopharmacol, 2023 (PMID: 37018981)
- Browse all Thymosin Beta 4 studies on PubMed →
KPV
KPV is a tripeptide (Lys-Pro-Val) derived from alpha-melanocyte-stimulating hormone (α-MSH) with interactions with inflammatory signaling pathways in preclinical models.
- Dissection of the anti-inflammatory effect of the core and C-terminal (KPV) alpha-melanocyte-stimulating hormone peptides — J Pharmacol Exp Ther, 2003 (PMID: 12750433)
- Melanocortin-derived tripeptide KPV has anti-inflammatory potential in murine models of inflammatory bowel disease — Inflamm Bowel Dis, 2008 (PMID: 18092346)
- Browse all KPV studies on PubMed →
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LL-37
LL-37 is the only human cathelicidin antimicrobial peptide, studied for interactions with innate immune pathways and antimicrobial activity in laboratory models.
- LL-37: Cathelicidin-related antimicrobial peptide with pleiotropic activity — Pharmacol Rep, 2016 (PMID: 27117377)
- Upregulating Human Cathelicidin Antimicrobial Peptide LL-37 Expression May Prevent Severe COVID-19 Inflammatory Responses and Reduce Microthrombosis — Front Immunol, 2022 (PMID: 35634307)
- Browse all LL-37 studies on PubMed →
📈 Growth Hormone Secretagogues
Ipamorelin
Ipamorelin is a selective growth hormone secretagogue that stimulates GH release without significantly affecting cortisol, prolactin, or ACTH levels — making it one of the most specific GH-releasing peptides available.
- Ipamorelin, the first selective growth hormone secretagogue — Eur J Endocrinol, 1998 (PMID: 9849822)
- Pharmacokinetic-pharmacodynamic modeling of ipamorelin in human volunteers — Pharm Res, 1999 (PMID: 10496658)
- Pharmacokinetic evaluation of ipamorelin and other peptidyl GH secretagogues — Xenobiotica, 1998 (PMID: 9879640)
- Browse all Ipamorelin studies on PubMed →
CJC-1295
CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) with a significantly extended half-life, enabling sustained GH and IGF-1 elevation with less frequent dosing.
- Once-daily CJC-1295 normalizes growth in the GHRH knockout mouse — Am J Physiol Endocrinol Metab, 2006 (PMID: 16822960)
- Pulsatile secretion of GH persists during continuous stimulation by CJC-1295 — J Clin Endocrinol Metab, 2006 (PMID: 17018654)
- Identification of CJC-1295 in an unknown pharmaceutical preparation — Drug Test Anal, 2010 (PMID: 21204297)
- Browse all CJC-1295 studies on PubMed →
🛒 Shop CJC-1295 (no DAC) | Shop CJC-1295 (with DAC)
Sermorelin
Sermorelin is a synthetic 29-amino-acid analog of GHRH that stimulates natural growth hormone production from the pituitary gland.
- Growth hormone releasing hormone — Clin Endocrinol Metab, 1986 (PMID: 2429796)
- A glimpse at growth hormone-releasing hormone cosmos — Clin Exp Pharmacol Physiol, 2020 (PMID: 32289177)
- Browse all Sermorelin studies on PubMed →
Tesamorelin
Tesamorelin is an FDA-recognized GHRH analog studied for its ability to reduce visceral adipose tissue and increase IGF-1 levels.
- Tesamorelin, a human growth hormone releasing factor analogue — Expert Opin Investig Drugs, 2009 (PMID: 19243281)
- Tesamorelin: a growth hormone-releasing factor analogue for HIV-associated lipodystrophy — Ann Pharmacother, 2012 (PMID: 22298602)
- Browse all Tesamorelin studies on PubMed →
Hexarelin & GHRP-6
Hexarelin and GHRP-6 are growth hormone-releasing peptides that act through the ghrelin receptor to stimulate GH release from the pituitary.
- The Safety and Efficacy of Growth Hormone Secretagogues — Sex Med Rev, 2018 (PMID: 28400207)
- Interaction of the growth hormone releasing peptide hexarelin with somatostatin — Clin Endocrinol (Oxf), 1997 (PMID: 9425393)
- Growth hormone-releasing peptide (GHRP) — Cell Mol Life Sci, 1998 (PMID: 9893708)
- Browse Hexarelin studies on PubMed →
- Browse GHRP-6 studies on PubMed →
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⏳ Senescence & Telomere Research Peptides
Epitalon
Epitalon (AEDG) is a synthetic tetrapeptide based on the natural pineal gland extract epithalamin. It has been studied for its ability to activate telomerase, regulate melatonin production, and exert geroprotective effects.
- Overview of Epitalon — Highly Bioactive Pineal Tetrapeptide with Promising Properties — Int J Mol Sci, 2025 (PMID: 40141333)
- Browse all Epitalon studies on PubMed →
🛒 Shop Epitalon | Shop N-Acetyl Epitalon Amidate
NAD+ (Nicotinamide Adenine Dinucleotide)
NAD+ is a critical coenzyme in every living cell, essential for energy metabolism, DNA repair, and sirtuin activation. NAD+ levels decline significantly with age, and supplementation is a growing area of longevity research.
- Nicotinamide Adenine Dinucleotide Augmentation in Overweight or Obese Middle-Aged and Older Adults — J Clin Endocrinol Metab, 2023 (PMID: 36740954)
- NAD+ in Aging Biology: Potential Applications and Many Unknowns — Endocr Rev, 2023 (PMID: 37364580)
- The Safety and Antiaging Effects of Nicotinamide Mononucleotide in Human Clinical Trials — Adv Nutr, 2023 (PMID: 37619764)
- Browse all NAD+ aging studies on PubMed →
🛒 Shop NAD+ (500mg) | Shop NAD+ (1000mg)
GHK-Cu (Copper Peptide)
GHK-Cu is a naturally occurring copper-binding tripeptide with broad gene expression modulation properties in preclinical models, including collagen synthesis pathways and extracellular matrix research.
- The potential of GHK as an anti-aging peptide — Aging Pathobiol Ther, 2020 (PMID: 35083444)
- GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration — Biomed Res Int, 2015 (PMID: 26236730)
- Browse all GHK-Cu studies on PubMed →
MOTS-c
MOTS-c is a mitochondrial-derived peptide encoded by the 12S rRNA gene. It plays roles in metabolic homeostasis, exercise mimetics, and insulin sensitivity — making it a promising target in aging and metabolic disease research.
- MOTS-c: A promising mitochondrial-derived peptide for therapeutic exploitation — Front Endocrinol, 2023 (PMID: 36761202)
- Mitochondrial-Encoded Peptide MOTS-c, Diabetes, and Aging-Related Diseases — Diabetes Metab J, 2023 (PMID: 36824008)
- Browse all MOTS-c studies on PubMed →
FOXO4-DRI
FOXO4-DRI is a cell-penetrating peptide that selectively induces apoptosis in senescent cells by disrupting the FOXO4-p53 interaction, representing a novel senolytic approach to aging.
- Senolytic Peptide FOXO4-DRI Selectively Removes Senescent Cells From in vitro Expanded Human Chondrocytes — Front Bioeng Biotechnol, 2021 (PMID: 33996787)
- Eliminating Senescent Cells Can Promote Pulmonary Hypertension Development and Progression — Circulation, 2023 (PMID: 36515093)
- Browse all FOXO4-DRI studies on PubMed →
SS-31 (Elamipretide)
SS-31 is a mitochondria-targeted peptide that concentrates in the inner mitochondrial membrane, stabilizing cardiolipin and improving mitochondrial function — studied in aging, heart failure, and kidney disease.
- Elamipretide (SS-31) improves mitochondrial dysfunction, synaptic and memory impairment induced by lipopolysaccharide in mice — J Neuroinflammation, 2019 (PMID: 31747905)
- Browse all SS-31 studies on PubMed →
Glutathione
Glutathione is a naturally occurring tripeptide antioxidant studied for its role in cellular redox homeostasis and oxidative stress pathways in research models.
- Supplementing Glycine and N-Acetylcysteine (GlyNAC) in Older Adults Improves Glutathione Deficiency, Oxidative Stress, Mitochondrial Dysfunction, Inflammation, Physical Function, and Aging Hallmarks — J Gerontol A Biol Sci Med Sci, 2023 (PMID: 35975308)
- Glycine and N-acetylcysteine (GlyNAC) supplementation in older adults improves glutathione deficiency, oxidative stress, mitochondrial dysfunction, inflammation, insulin resistance, endothelial dysfunction, genotoxicity, muscle strength, and cognition — Clin Transl Med, 2021 (PMID: 33783984)
- Browse all Glutathione studies on PubMed →
🧠 Cognitive & Neuroprotective Peptides
Semax
Semax is a synthetic heptapeptide analog of ACTH(4-10) with nootropic and neuroprotective properties. It has been studied for enhancing memory, attention, and brain-derived neurotrophic factor (BDNF) expression.
- Nootropic and analgesic effects of Semax following different routes of administration — Ross Fiziol Zh, 2010 (PMID: 21268834)
- Neuroprotective effects of Semax in MPTP-induced lesions of the brain dopaminergic system — Neurosci Behav Physiol, 2004 (PMID: 15341218)
- Semax activates dopaminergic and serotoninergic brain systems in rodents — Neurochem Res, 2005 (PMID: 16362768)
- Browse all Semax studies on PubMed →
Selank
Selank is a synthetic peptide analog of the immunomodulatory peptide tuftsin, exhibiting interactions with GABAergic signaling pathways in preclinical anxiety research models.
- Selank attenuates aversive signs of morphine withdrawal in rats — Bull Exp Biol Med, 2022 (PMID: 36322304)
- Peptide Selank enhances the effect of diazepam in reducing anxiety — Behav Neurol, 2017 (PMID: 28280289)
- Efficacy of peptide anxiolytic selank during modeling of withdrawal syndrome — Bull Exp Biol Med, 2014 (PMID: 24913576)
- Browse all Selank studies on PubMed →
Pinealon
Pinealon (EDR) is a short peptide with neuroprotective activity, studied for its ability to regulate gene expression in brain cells and protect against oxidative damage.
- Investigation of antihypoxic properties of short peptides — Adv Gerontol, 2008 (PMID: 18546825)
- Browse all Pinealon studies on PubMed →
DSIP (Delta Sleep-Inducing Peptide)
DSIP is a neuropeptide originally isolated from rabbit brain that studied for interactions with neuroendocrine signaling pathways and circadian-related markers in preclinical models.
- Delta sleep-inducing peptide (DSIP): a still unresolved riddle — J Neurochem, 2006 (PMID: 16539679)
- Browse all DSIP studies on PubMed →
🛡️ Immune & Thymic Peptides
Thymosin Alpha 1 (TA1)
Thymosin Alpha 1 is a thymic peptide studied for its interactions with T-cell maturation, dendritic cell activity, and cytokine production pathways in preclinical research.
- Immune Modulation with Thymosin Alpha 1 Treatment — Vitam Horm, 2016 (PMID: 27450734)
- Browse all Thymosin Alpha 1 studies on PubMed →
Thymalin
Thymalin is a polypeptide complex derived from the thymus gland, studied for immunomodulatory properties and thymic function in preclinical research models.
- The Influence of KE and EW Dipeptides in the Composition of the Thymalin Drug on Gene Expression and Protein Synthesis Involved in the Pathogenesis of COVID-19 — Int J Mol Sci, 2023 (PMID: 37686182)
- Results and Prospects of Using Activator of Hematopoietic Stem Cell Differentiation in Complex Therapy for Patients with COVID-19 — Stem Cell Rev Rep, 2021 (PMID: 33575961)
- Browse all Thymalin studies on PubMed →
⚡ Metabolic Pathway Research Peptides
AOD-9604
AOD-9604 is a modified fragment of human growth hormone (hGH 177-191) studied for its lipolytic properties and lipolytic properties in adipocyte cell culture models without the somatotropic signaling of full-length GH.
- Obesity drugs in clinical development — Curr Opin Investig Drugs, 2006 (PMID: 16625817)
- Browse all AOD-9604 studies on PubMed →
5-Amino-1MQ
5-Amino-1MQ is a small-molecule NNMT inhibitor studied for its potential to increase cellular energy expenditure, reduce fat accumulation, and modulate metabolic pathways.
- Reduced calorie diet combined with NNMT inhibition establishes a distinct microbiome in DIO mice — Sci Rep, 2022 (PMID: 35013352)
- Small molecule inhibitor of nicotinamide N-methyltransferase shows anti-proliferative activity in HeLa cells — J Obstet Gynaecol, 2021 (PMID: 33645410)
- Browse all 5-Amino-1MQ studies on PubMed →
SLU-PP-332
SLU-PP-332 is an ERRα/γ agonist studied as an “exercise mimetic” — activating pathways associated with endurance exercise including mitochondrial biogenesis and fatty acid oxidation.
- A Synthetic ERR Agonist Alleviates Metabolic Syndrome — J Pharmacol Exp Ther, 2024 (PMID: 37739806)
- Synthetic ERRalpha/beta/gamma Agonist Induces an ERRalpha-Dependent Acute Aerobic Exercise Response and Enhances Exercise Capacity — ACS Chem Biol, 2023 (PMID: 36988910)
- Browse all SLU-PP-332 studies on PubMed →
Cagrilintide
Cagrilintide is a long-acting amylin analog studied for interactions with amylin receptor signaling pathways and energy homeostasis markers in preclinical models.
- Once-weekly cagrilintide for weight management in people with overweight and obesity: a multicentre, randomised, double-blind, placebo-controlled and active-controlled, dose-finding phase 2 trial — Lancet, 2021 (PMID: 34798060)
- Cagrilintide: A Long-Acting Amylin Analog for the Treatment of Obesity — Cardiol Rev, 2024 (PMID: 36883831)
- Browse all Cagrilintide studies on PubMed →
🔎 Specialty & Emerging Peptides
Snap-8
Snap-8 (Acetyl Octapeptide-3) is a peptide studied for modulation of SNARE complex formation and neurotransmitter vesicle exocytosis in laboratory models.
- Efficacy of bioactive peptides loaded on hyaluronic acid microneedle patches: A monocentric clinical study — J Cosmet Dermatol, 2020 (PMID: 31134751)
- Browse all Snap-8 studies on PubMed →
Kisspeptin-10
Kisspeptin is a neuropeptide critical to the regulation of the hypothalamic-pituitary-gonadal axis and reproductive hormone secretion.
- The Role of Kisspeptin in the Control of the Hypothalamic-Pituitary-Gonadal Axis and Reproduction — Front Endocrinol, 2022 (PMID: 35837314)
- Stress, kisspeptin, and functional hypothalamic amenorrhea — Curr Opin Pharmacol, 2022 (PMID: 36103784)
- Browse all Kisspeptin studies on PubMed →
VIP (Vasoactive Intestinal Peptide)
VIP is a neuropeptide with broad immunomodulatory, vasodilatory, and neuroprotective actions studied across multiple preclinical research models.
- Vasoactive Intestinal Peptide (VIP) Nanoparticles for Diagnostics and for Controlled and Targeted Drug Delivery — Adv Protein Chem Struct Biol, 2015 (PMID: 25819279)
- Browse all VIP studies on PubMed →
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ARA-290
ARA-290 is a non-erythropoietic peptide derived from erythropoietin (EPO) that activates the innate repair receptor, studied in preclinical neuroprotection and tissue modeling research.
- Cibinetide dampens innate immune cell functions thus ameliorating the course of experimental colitis — Sci Rep, 2017 (PMID: 29026145)
- Improvement of Islet Allograft Function Using Cibinetide, an Innate Repair Receptor Ligand — Transplantation, 2020 (PMID: 32345869)
- Browse all ARA-290 studies on PubMed →
PNC-27
PNC-27 is a synthetic peptide targeting the HDM-2 binding site on p53, studied for its ability to selectively kill cancer cells by disrupting their membrane integrity.
- Anti-Cancer Peptide PNC-27 Kills Cancer Cells by Unique Interactions with Plasma Membrane-Bound hdm-2 and with Mitochondrial Membranes Causing Mitochondrial Disruption — Ann Clin Lab Sci, 2024 (PMID: 38802154)
- Browse all PNC-27 studies on PubMed →
ACE-031
ACE-031 is a soluble form of the activin receptor type IIB (ActRIIB) that acts as a myostatin trap, studied for interactions with muscle growth signaling pathways in preclinical models.
- Myostatin inhibitor ACE-031 treatment of ambulatory boys with Duchenne muscular dystrophy: Results of a randomized, placebo-controlled clinical trial — Muscle Nerve, 2017 (PMID: 27462804)
- Browse all ACE-031 studies on PubMed →
GDF-8 (Myostatin)
GDF-8, also known as myostatin, is a negative regulator of skeletal muscle growth. studied in preclinical muscle biology and sarcopenia research models.
- Myostatin: A Skeletal Muscle Chalone — Annu Rev Physiol, 2023 (PMID: 36266260)
- A Review of Sarcopenia Pathophysiology, Diagnosis, Treatment and Future Direction — J Korean Med Sci, 2022 (PMID: 35535373)
- Browse all GDF-8/Myostatin studies on PubMed →
📚 Featured Blends
Wolverine Blend (BPC-157 + TB-500)
A popular combination of the two most-studied recovery peptides, designed for comprehensive tissue repair research.
GLOW Blend (GHK-Cu + BPC-157 + TB-500)
Combines copper peptide with tissue-modeling research peptides for multi-pathway preclinical investigation.
KLOW Blend (GHK-Cu + KPV + BPC-157 + TB-500)
A comprehensive four-peptide blend combining anti-inflammatory pathway and tissue-modeling research compounds.
4X GH Blend (GHRP-2 + Tesamorelin + MGF + Ipamorelin)
A multi-pathway growth hormone secretagogue stack combining four complementary compounds for GH axis research.
CJC/Ipamorelin 2X Blend
The most popular GH secretagogue combination, pairing GHRH analog CJC-1295 with the selective GH secretagogue Ipamorelin.
⚠️ Disclaimer
All products sold by Molecular Peptides are intended for laboratory and research use only. They are not intended for human consumption, therapeutic use, or as dietary supplements. The information on this page is provided for educational and informational purposes only and is not intended as medical advice. The research articles linked above are published by independent researchers and do not constitute endorsement of any product. Always consult published literature and qualified professionals before designing any research protocol. By purchasing from Molecular Peptides, you agree that products will be used in accordance with all applicable laws and regulations governing research materials.