Research peptide index
25 peptide monographs — each covering the discovery, mechanism of action, receptor target, half-life, the dosing range across published research, the safety profile, and the UK regulatory status. Every monograph links back to the research stacks on this site that include that peptide.
For combination protocols see our research peptide stacks directory. For deep-dive monographs that extend beyond the research-stack focus of this site, see PeptideAuthority.co.uk — every peptide on this index also has a dedicated authoritative monograph there. For research-grade product sourcing see PeptideBarn.co.uk.
GH Lipolytic Fragment
Tissue Repair
BPC-157 — Body Protection Compound 157
aka Body Protection Compound 157, PL 14736
BPC-157 is a synthetic pentadecapeptide derived from human gastric juice, researched for tissue repair, gut protection, and angiogenic signalling.
GHK-Cu — Copper Tripeptide-1
aka Copper tripeptide-1, Glycyl-L-Histidyl-L-Lysine Copper
GHK-Cu is a naturally occurring copper-binding tripeptide with robust research backing for skin repair, hair growth, and anti-fibrotic activity via lysyl oxidase and gene modulation.
TB-500 — Thymosin β-4 (1-4) Synthetic Fragment
aka Thymosin β-4 fragment, TB4-fragment
TB-500 is a synthetic 7-amino-acid fragment of Thymosin β-4 researched for tissue repair, angiogenesis, and inflammation modulation via G-actin sequestration.
Neuropeptide
Cerebrolysin — Porcine-Brain Neuropeptide Preparation
aka FPF-1070, EVER Pharma Cerebrolysin
Cerebrolysin is a porcine-brain peptide hydrolysate approved in 40+ countries for post-stroke and cognitive rehabilitation, mimicking NGF and BDNF neurotrophic activity.
DSIP — Delta Sleep-Inducing Peptide
aka Delta Sleep-Inducing Peptide
DSIP is a neuropeptide that promotes delta-wave sleep, suppresses cortisol, and shows promise for insomnia and alcohol withdrawal without dependence risk.
Selank — Tuftsin-Derivative Anxiolytic Heptapeptide
aka TP-7, Thr-Lys-Pro-Arg-Pro-Gly-Pro
Selank is a synthetic heptapeptide derived from the immunopeptide tuftsin that produces anxiolytic and nootropic effects via GABAergic modulation without benzodiazepine-type dependence.
Semax — ACTH(4-10) Heptapeptide Nootropic
aka Met-Glu-His-Phe-Pro-Gly-Pro, MEHFPGP
Semax is a synthetic heptapeptide derived from ACTH(4-10) that upregulates BDNF and NGF, enhancing cognition via intranasal delivery without corticotropic side effects.
GHRH Analogue
CJC-1295 — GHRH(1-29) Analogue (no DAC / DAC variants)
aka DAC:GRF, Mod GRF 1-29 (no-DAC variant)
Research profile of CJC-1295 (no-DAC and DAC variants): GHRH receptor mechanism, pulse biology, dosing protocols, UK regulatory status and reconstitution.
Tesamorelin — Stabilised GHRH Analogue (EGRIFTA)
aka EGRIFTA, TH9507
Tesamorelin (EGRIFTA) is the only FDA-approved GHRH analogue, clinically validated to reduce visceral adipose tissue in HIV-associated lipodystrophy.
Khavinson Bioregulator
Epitalon — Pineal Tetrapeptide Bioregulator
aka Epithalon, Epithalamin (parent extract)
Epitalon (AEDG) is a synthetic tetrapeptide derived from the pineal gland, studied for telomerase activation, melatonin normalisation, and longevity biomarkers.
Pinealon — Pineal Tripeptide Bioregulator
aka Glu-Asp-Arg, EDR
Pinealon (Glu-Asp-Arg) is a Khavinson tripeptide bioregulator studied for neuroprotection, pineal modulation, and age-related cognitive decline in animal models.
Mitochondrial Peptide
Humanin — Mitochondrial-Derived 24-Amino-Acid Peptide
aka HNG, HN
Humanin is a 24-amino-acid mitochondrial peptide with documented neuroprotective, cardioprotective, and insulin-sensitising effects in preclinical research.
MOTS-c — Mitochondrial Open Reading Frame 12S rRNA-c
aka Mitochondrial-derived peptide, mtDNA-encoded MOTS-c
MOTS-c is a mitochondrial-derived peptide that activates AMPK, mimics exercise-induced gene expression, and declines with age — linking metabolic fitness to mitochondrial output.
SS-31 (Elamipretide) — Cardiolipin-Targeted Mitochondrial Peptide
aka Elamipretide, Bendavia
SS-31 (Elamipretide) is a D-amino-acid tetrapeptide that binds cardiolipin in the inner mitochondrial membrane, stabilising the electron transport chain and reducing pathological ROS.
GH Secretagogue (GHRP)
Kisspeptin Family
Melanocortin
KPV — α-MSH(11-13) C-Terminal Anti-Inflammatory Tripeptide
aka Lysine-Proline-Valine, α-MSH C-terminal tripeptide
KPV is the C-terminal tripeptide of α-MSH with oral bioavailability via PepT1 and potent NF-κB-mediated anti-inflammatory activity in gut and skin research models.
Melanotan II — Broad-Spectrum α-MSH Analogue
aka MT-II, MT2
Melanotan II is a cyclic α-MSH analogue with broad melanocortin agonism across MC1R, MC3R, MC4R, and MC5R, studied for pigmentation and sexual behaviour.
PT-141 (Bremelanotide) — MC4R-Selective Melanocortin Agonist
aka Bremelanotide, Vyleesi
PT-141 (Bremelanotide) is an MC4R-selective melanocortin agonist FDA-approved as Vyleesi for premenopausal HSDD, acting centrally to modulate sexual arousal.
Antimicrobial / Cathelicidin
Incretin (GLP-1 / GIP / Glucagon)
Retatrutide — Triple GIP/GLP-1/Glucagon Receptor Agonist
aka LY3437943
Retatrutide (LY3437943) is a once-weekly triple GIP/GLP-1/glucagon receptor agonist in Phase III, showing ~24% mean weight loss in Phase II at 48 weeks.
Tirzepatide — Dual GIP/GLP-1 Receptor Agonist (Mounjaro / Zepbound)
aka LY3298176, Mounjaro
Tirzepatide is a once-weekly dual GIP/GLP-1 receptor agonist licensed as Mounjaro (UK/EU) and Zepbound (US) producing ~21% mean weight reduction in SURMOUNT-1.
Thymic Peptide
Thymalin — Thymic Peptide Complex Bioregulator
aka Thymulin (distinct compound), Thymic peptide preparation (Khavinson)
Thymalin is a Khavinson-developed bovine thymic peptide complex supporting T-cell maturation and cytokine balance, studied in human immunosenescence cohorts for more than fifteen years.
Thymosin α-1 — Thymic Immunomodulatory Peptide (Zadaxin / Thymalfasin)
aka Tα1, Zadaxin
Thymosin α-1 (Zadaxin/Thymalfasin) is a 28-amino-acid thymic peptide that activates TLR-9 dendritic cells, induces IL-12, and is approved in 30+ countries for hepatitis B and C.