Research peptide encyclopedia
Neutral, in-vitro / preclinical profiles of research peptides, plus a live scientific search across the PubMed literature. For laboratory research only.
Research axes
Explore research peptides by area to find compounds relevant to your field of study.
Metabolic
Peptides studied in research on metabolism, lipid oxidation and appetite regulation.
Growth hormone
Compounds studied on GH secretion, IGF-1 pathways and anabolic signalling.
Tissue repair
Peptides studied on the repair of tissues, tendons, ligaments and wound healing.
Cognition & focus
Compounds studied on cognition, neuroprotection and synaptic plasticity.
Longevity & anti-ageing
Peptides studied on cellular senescence, telomeres and markers of ageing.
Skin & hair
Peptides studied on skin, collagen, hair and cutaneous anti-ageing.
Hormonal balance
Peptides studied on hormonal balance and the reproductive axis.
Immunity
Peptides studied on immune modulation and the body's defences.
Scientific search engine
Live results from PubMed (NCBI). Research literature only — no medical advice.
Tirzepatide for Metabolic Dysfunction-Associated Steatohepatitis with Liver Fibrosis.
Loomba R, et al. · The New England journal of medicine · 2024
Tirzepatide Once Weekly for the Treatment of Obesity.
Jastreboff AM, et al. · The New England journal of medicine · 2022
Tirzepatide for the Treatment of Obstructive Sleep Apnea and Obesity.
Malhotra A, et al. · The New England journal of medicine · 2024
Tirzepatide for Obesity Treatment and Diabetes Prevention.
Jastreboff AM, et al. · The New England journal of medicine · 2025
Tirzepatide did not impact metabolic adaptation in people with obesity, but increased fat oxidation.
Ravussin E, et al. · Cell metabolism · 2025
Tirzepatide as Compared with Semaglutide for the Treatment of Obesity.
Aronne LJ, et al. · The New England journal of medicine · 2025
Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes.
Frías JP, et al. · The New England journal of medicine · 2021
Tirzepatide once weekly for the treatment of obesity in people with type 2 diabetes (SURMOUNT-2): a double-blind, randomised, multicentre, placebo-controlled, phase 3 trial.
Garvey WT, et al. · Lancet (London, England) · 2023
Cardiovascular Outcomes with Tirzepatide versus Dulaglutide in Type 2 Diabetes.
Nicholls SJ, et al. · The New England journal of medicine · 2025
Tirzepatide for Weight Reduction in Chinese Adults With Obesity: The SURMOUNT-CN Randomized Clinical Trial.
Zhao L, et al. · JAMA · 2024
Tirzepatide: A Systematic Update.
Forzano I, et al. · International journal of molecular sciences · 2022
Comparison of tirzepatide and dulaglutide on major adverse cardiovascular events in participants with type 2 diabetes and atherosclerotic cardiovascular disease: SURPASS-CVOT design and baseline characteristics.
Nicholls SJ, et al. · American heart journal · 2024
Body composition changes during weight reduction with tirzepatide in the SURMOUNT-1 study of adults with obesity or overweight.
Look M, et al. · Diabetes, obesity & metabolism · 2025
Effect of Subcutaneous Tirzepatide vs Placebo Added to Titrated Insulin Glargine on Glycemic Control in Patients With Type 2 Diabetes: The SURPASS-5 Randomized Clinical Trial.
Dahl D, et al. · JAMA · 2022
Tirzepatide is an imbalanced and biased dual GIP and GLP-1 receptor agonist.
Willard FS, et al. · JCI insight · 2020
Peptide profiles
BPC-157
A pentadecapeptide studied in preclinical tissue-repair research.
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TB-500
A synthetic fragment related to Thymosin Beta-4, studied in cell-migration research.
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GHK-Cu
A copper tripeptide (Gly-His-Lys) studied in in-vitro dermatological research.
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AHK-Cu
A copper tripeptide (Ala-His-Lys) studied in vitro on the hair follicle.
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Reta-R3
A multi-receptor research compound studied in a metabolic context.
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Ipamorelin
A peptide studied in vitro as a selective ghrelin-receptor agonist.
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CJC-1295 no DAC
A GHRH analogue studied in vitro for the growth-hormone pathway.
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PT-141
A peptide studied in vitro as a melanocortin-receptor agonist.
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Selank
A synthetic tuftsin analogue studied in vitro as a nootropic peptide.
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Tirzepatide
A research peptide studied in vitro as a dual GLP-1 / GIP agonist.
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Semaglutide
A research peptide studied in vitro as a GLP-1 receptor agonist.
ReadPeptide directory
A broad index of research peptides — class-level descriptors, each linking to the PubMed literature. Research use only.
| Peptide | Category | Structure | Research application | PubMed |
|---|---|---|---|---|
| BPC-157 | Tissue repair | Pentadecapeptide (15 aa) | Studied in preclinical / in-vitro research on tissue repair. | View |
| TB-500 | Tissue repair | Thymosin β4 fragment | Studied in preclinical / in-vitro research on cell migration. | View |
| GHK-Cu | Skin & hair | Copper tripeptide (Gly-His-Lys) | Studied in preclinical / in-vitro research on the extracellular matrix. | View |
| AHK-Cu | Skin & hair | Copper tripeptide (Ala-His-Lys) | Studied in preclinical / in-vitro research on the hair follicle. | View |
| Reta-R3 | Metabolic | Triple-receptor agonist (investigational) | Studied in preclinical / in-vitro research on metabolism. | View |
| Semaglutide | Metabolic | GLP-1 receptor agonist | Studied in preclinical / in-vitro research on metabolism. | View |
| Tirzepatide | Metabolic | Dual GIP/GLP-1 agonist | Studied in preclinical / in-vitro research on metabolism. | View |
| Cagrilintide | Metabolic | Amylin analogue | Studied in preclinical / in-vitro research on metabolism. | View |
| Survodutide | Metabolic | Dual GLP-1/glucagon agonist (investigational) | Studied in preclinical / in-vitro research on metabolism. | View |
| AOD-9604 | Metabolic | hGH fragment (176-191) | Studied in preclinical / in-vitro research on lipid metabolism. | View |
| MOTS-c | Metabolic | Mitochondrial-derived peptide | Studied in preclinical / in-vitro research on energy metabolism. | View |
| CJC-1295 | Growth hormone | GHRH analogue | Studied in preclinical / in-vitro research on GH secretion. | View |
| Ipamorelin | Growth hormone | Pentapeptide (ghrelin agonist) | Studied in preclinical / in-vitro research on GH secretion. | View |
| GHRP-2 | Growth hormone | GH-releasing hexapeptide | Studied in preclinical / in-vitro research on GH secretion. | View |
| GHRP-6 | Growth hormone | GH-releasing hexapeptide | Studied in preclinical / in-vitro research on GH secretion. | View |
| Sermorelin | Growth hormone | GHRH analogue (1-29) | Studied in preclinical / in-vitro research on GH secretion. | View |
| Tesamorelin | Growth hormone | GHRH analogue | Studied in preclinical / in-vitro research on metabolism and GH. | View |
| Hexarelin | Growth hormone | Hexapeptide (ghrelin agonist) | Studied in preclinical / in-vitro research on GH secretion. | View |
| IGF-1 LR3 | Growth hormone | Long-acting IGF-1 analogue | Studied in preclinical / in-vitro research on anabolic signalling (in vitro). | View |
| MK-677 (Ibutamoren) | Growth hormone | GH secretagogue (GHS-R agonist) | Studied in preclinical / in-vitro research on GH secretion. | View |
| Semax | Cognition & focus | Synthetic heptapeptide (ACTH-derived) | Studied in preclinical / in-vitro research on neuroprotection. | View |
| Selank | Cognition & focus | Synthetic heptapeptide (tuftsin-derived) | Studied in preclinical / in-vitro research on anxiolytic effects. | View |
| Cerebrolysin | Cognition & focus | Neurotrophic peptide mixture | Studied in preclinical / in-vitro research on neuroprotection. | View |
| Dihexa | Cognition & focus | Hexapeptide (angiotensin IV-derived) | Studied in preclinical / in-vitro research on synaptogenesis. | View |
| P-21 (P021) | Cognition & focus | CNTF-derived peptide | Studied in preclinical / in-vitro research on neurogenesis. | View |
| Epithalon | Longevity & anti-ageing | Tetrapeptide (Ala-Glu-Asp-Gly) | Studied in preclinical / in-vitro research on telomeres and ageing. | View |
| FOXO4-DRI | Longevity & anti-ageing | FOXO4-p53 interaction inhibitor peptide | Studied in preclinical / in-vitro research on cellular senescence. | View |
| Humanin | Longevity & anti-ageing | Mitochondrial-derived peptide | Studied in preclinical / in-vitro research on cytoprotection. | View |
| Thymalin | Immunity | Thymic peptide | Studied in preclinical / in-vitro research on immune modulation. | View |
| Thymosin Alpha-1 | Immunity | Thymic peptide (28 aa) | Studied in preclinical / in-vitro research on immune modulation. | View |
| LL-37 | Immunity | Antimicrobial peptide (cathelicidin) | Studied in preclinical / in-vitro research on innate immunity. | View |
| KPV | Immunity | Tripeptide (Lys-Pro-Val) | Studied in preclinical / in-vitro research on inflammation (in vitro). | View |
| ARA-290 (Cibinetide) | Tissue repair | EPO-derived peptide (11 aa) | Studied in preclinical / in-vitro research on anti-inflammation and neuroprotection. | View |
| PT-141 (Bremelanotide) | Hormonal balance | Cyclic melanocortin peptide | Studied in preclinical / in-vitro research on melanocortin receptors. | View |
| Kisspeptin-10 | Hormonal balance | Regulatory decapeptide | Studied in preclinical / in-vitro research on the reproductive axis. | View |
| Oxytocin | Hormonal balance | Nonapeptide (neurohormone) | Studied in preclinical / in-vitro research on social behaviour. | View |
| Melanotan II | Skin & hair | α-MSH analogue heptapeptide | Studied in preclinical / in-vitro research on melanocortin receptors. | View |
| SNAP-8 | Skin & hair | Octapeptide (acetyl octapeptide-3) | Studied in preclinical / in-vitro research on the appearance of wrinkles (in vitro). | View |
| PAL-GHK | Skin & hair | Palmitoylated tripeptide | Studied in preclinical / in-vitro research on collagen (in vitro). | View |
39 / 39 peptides · links to PubMed literature.
Research peptides — Research Use Only
- Not for human consumption
- Not for the diagnosis, treatment or prevention of any disease