Library
The peptide library.
What each compound is, what the research actually found, where it stands with regulators, and what the safety picture looks like. Every entry is written from primary sources and says plainly where the evidence runs out.
5-amino-1MQ
NNMT inhibitor (small molecule, not a peptide)5-amino-1MQ is studied in lab research for its effects on fat metabolism and body composition — it works by blocking an enzyme called NNMT, which helps…Abaloparatide
Parathyroid hormone-related protein (PTHrP) analog, bone-anabolicAbaloparatide (brand name Tymlos) is a prescription medicine for osteoporosis — a condition where bones become thin and break easily.ACE-031
ActRIIB-Fc myostatin/activin ligand trapACE-031 works by soaking up myostatin and related proteins that normally put a brake on muscle growth, so blocking them can increase muscle mass.Adamax
Semax-family neuropeptide analogAdamax is marketed in the research-peptide world as a nootropic, claimed to sharpen focus and mental clarity, the same claims sold for Semax, the Russian…Adipotide
Chimeric pro-apoptotic homing peptidomimeticAdipotide is an engineered peptide designed to destroy the blood vessels feeding white fat tissue, causing fat loss — it works by joining a fat-tissue…Afamelanotide
Melanocortin-1 receptor (MC1-R) agonistAfamelanotide (also called Melanotan I) is a peptide best known for helping the skin tolerate more light by boosting its natural pigment, eumelanin, in people…AHK-Cu
Copper-bound tripeptide (topical cosmetic)AHK-Cu is a small copper-bound tripeptide best known for research into hair and scalp health, and it's used as an ingredient in topical hair and skin serums.AICAR
AMPK activator (nucleoside analog, not a peptide)AICAR (acadesine) is best known as an 'exercise mimetic,' studied for reproducing some effects of endurance training, like better stamina and fat burning,…Amycretin
GLP-1 + amylin receptor dual agonistAmycretin is a Novo Nordisk compound studied for weight loss and blood-sugar control in early-stage research — it's designed to activate both the GLP-1 and…Anastrozole
Aromatase inhibitor (small molecule, not a peptide)Anastrozole (brand name Arimidex) is best known as a breast cancer treatment for postmenopausal women, lowering estrogen by blocking the aromatase enzyme that…AOD-9604
Growth hormone (hGH) fragment; lipolytic peptideAOD-9604 is a synthetic peptide, a modified fragment of human growth hormone, studied for fat loss — animal studies report it reduces body fat without raising…ARA-290
Non-erythropoietic, tissue-protective EPO peptideARA-290 (also called cibinetide) is a synthetic peptide best known for research into nerve pain and tissue protection, including nerve pain linked to the rare…Bimagrumab
Anti-activin type II receptor monoclonal antibodyBimagrumab is a lab-made antibody, not a peptide. Antibodies are much larger molecules, and they are given by a drip into a vein rather than as a small…BPC-157
Pentadecapeptide; healing/cytoprotective peptideBPC-157 (Body Protection Compound 157) is a synthetic peptide best known for research into tissue and injury healing — tendon, ligament, gut, and muscle…BPC-157 / TB-500 Blend
Pre-mixed regenerative peptide blendThis blend is used by researchers for tissue healing and recovery — it combines two peptides, BPC-157 (based on a stomach-protein fragment) and TB-500 (a…Bronchogen
Khavinson bronchial bioregulator peptideBronchogen is a short synthetic peptide from the Russian 'Khavinson' bioregulator family, marketed for the bronchi and lungs.Cagrilintide
Long-acting amylin analogueCagrilintide is a long-acting, lab-made version of amylin, a hormone the pancreas releases alongside insulin, and is best known for its role in weight loss,…CagriSema
Amylin analogue + GLP-1 receptor agonist combinationCagriSema is a once-weekly injectable combination studied for substantial weight loss in adults with obesity — it pairs cagrilintide (a long-acting amylin…Cardiogen
Khavinson cardiac bioregulator peptideCardiogen is a short synthetic peptide from the Russian 'Khavinson' bioregulator family, marketed for the heart.Cartalax
Khavinson bioregulator peptide (AED tripeptide)Cartalax is a short synthetic peptide from the Russian 'Khavinson' bioregulator family, marketed for cartilage and joints.Cerebrolysin
Porcine brain peptide/amino-acid mixtureCerebrolysin is a mixture of small peptides and amino acids made from purified pig brain tissue, used for stroke recovery and dementia-related cognitive…Chonluten
Khavinson bioregulator peptide (tripeptide)Chonluten is a short synthetic peptide from the Russian 'Khavinson' bioregulator family, marketed for the lungs and airway lining, and derived from bronchial…CJC-1295
Growth hormone-releasing hormone (GHRH) analog; GH secretagogueCJC-1295 is a synthetic growth hormone releaser, a lab-made peptide that signals the pituitary gland to release more of the body's own growth hormone.CJC-1295 / Ipamorelin Blend
Pre-mixed GH-secretagogue blend (GHRH analog + GHRP)This blend is used by researchers to raise growth hormone output for body composition, sleep, and recovery research — it combines two peptides, CJC-1295 (a…Clomiphene / Enclomiphene
Selective estrogen receptor modulator (SERM)Clomiphene (brand names Clomid, Serophene) is best known for triggering ovulation in women trying to conceive, by blocking estrogen feedback at the brain and…Cortagen
Khavinson bioregulator peptide (tetrapeptide)Cortagen is a short synthetic peptide from the Russian 'Khavinson' bioregulator family, marketed for the brain, specifically the cerebral cortex.Crystagen
Khavinson bioregulator peptideCrystagen is a short synthetic peptide from the Russian 'Khavinson' bioregulator family, marketed for the immune system.Desmopressin
Vasopressin (antidiuretic hormone) analogueDesmopressin (often called DDAVP) is a long-established prescription medicine that tells the kidneys to hold on to water, so the body makes less urine.DSIP
Endogenous nonapeptide; sleep-modulating / stress-buffering peptideDSIP (delta sleep-inducing peptide) is a naturally occurring nine-amino-acid peptide studied for promoting deep, slow-wave sleep and buffering stress, which…Dulaglutide
GLP-1 receptor agonistDulaglutide is best known as Trulicity, an FDA-approved weekly GLP-1 medicine for type 2 diabetes — a lab-made peptide that copies a natural gut hormone…Epitalon
Khavinson pineal bioregulator peptideEpitalon (also spelled Epithalon) is a short synthetic peptide marketed in longevity research circles for anti-aging effects, based on a proposed 'telomerase…Exemestane
Third-generation steroidal aromatase inhibitor (irreversible)Exemestane (brand name Aromasin) is best known as a breast cancer treatment for postmenopausal women, lowering estrogen by blocking the aromatase enzyme.Exenatide
GLP-1 receptor agonistExenatide is a synthetic version of exendin-4, a peptide first isolated from Gila monster venom, and was the first GLP-1 medicine ever approved by the FDA…Follistatin
Myostatin/activin-neutralizing glycoproteinFollistatin is a naturally occurring protein that blocks myostatin, the body's natural brake on muscle growth, plus a related protein called activin, and it's…FOXO4-DRI
Senolytic D-retro-inverso peptideFOXO4-DRI is a lab-designed peptide studied as a senolytic — something designed to selectively kill off aging ('senescent') cells while sparing healthy ones,…GHK-Cu
Endogenous tripeptide-copper complex; regenerative / cosmetic peptideGHK-Cu is a small copper-bound peptide best known for research into skin, hair, and wound healing.GHRP-2
Growth hormone-releasing peptide (GHRP)GHRP-2 (also called pralmorelin) is a growth hormone releaser known for strongly prompting the pituitary gland to release the body's own growth hormone, by…GHRP-6
Growth hormone-releasing peptide (GHRP)GHRP-6 is the original growth hormone releaser, the compound later GHRPs like GHRP-2 and hexarelin were derived from.GLOW
Compounded peptide blend; healing / regeneration / skin and tissueGLOW is a blend researchers use for skin regeneration and general tissue healing: it combines three peptides in one vial, GHK-Cu (a copper-tripeptide, the…Glutathione
Endogenous tripeptide; primary intracellular antioxidantGlutathione is the body's primary antioxidant, made naturally in nearly every cell to protect against oxidative stress and support detoxification;Gonadorelin
GnRH receptor agonist (decapeptide)Gonadorelin is best known for telling the pituitary to release the hormones (LH and FSH) that drive testosterone production and fertility.HCG (Human Chorionic Gonadotropin)
Glycoprotein hormone / LH analogHCG (human chorionic gonadotropin) is best known for stimulating the testicles to make testosterone (it acts like luteinizing hormone, LH) and for triggering…Hexarelin
Growth hormone-releasing peptide (GHRP)Hexarelin (also called examorelin) is a growth hormone releaser that prompts the pituitary gland to release growth hormone by acting on the ghrelin (hunger…HGH (Human Growth Hormone) / Somatropin
Recombinant human growth hormone (somatropin)HGH (human growth hormone, or somatropin) is the body's own growth hormone, made in the lab through recombinant DNA technology, and it's best known for…Humanin
Mitochondrial-derived peptide (MDP)Humanin is a short peptide made from a hidden gene inside mitochondria, the cell's energy-producing 'power plants,' and it's studied for protecting brain…IGF-1 LR3
Modified IGF-1 analog (IGF-1R agonist)IGF-1 LR3 is a modified, longer-lasting version of insulin-like growth factor-1 (IGF-1), the hormone that drives tissue and muscle growth, and it's pursued…Ipamorelin
Growth hormone-releasing peptide (GHRP)Ipamorelin is a growth hormone releaser known as one of the more selective options in its class: it triggers a short pulse of the body's own growth hormone by…Kisspeptin
Kisspeptin / KISS1R agonistKisspeptin sits at the very top of the reproductive hormone axis, triggering the brain's release of GnRH and, downstream, testosterone or estrogen.KLOW
Compounded peptide blend; healing / regeneration / anti-inflammatoryKLOW is a blend researchers use for skin regeneration, anti-inflammatory effects, and general tissue healing and recovery: it combines four peptides in one…KPV
α-msh c-terminal tripeptide; anti-inflammatory peptideKPV is a tripeptide best known for research as an anti-inflammatory, especially for gut inflammation.Letrozole
Third-generation nonsteroidal aromatase inhibitorLetrozole (brand name Femara) is best known as a breast cancer treatment for postmenopausal women, lowering estrogen by blocking the aromatase enzyme;Linaclotide
Guanylate cyclase-C (GC-C) receptor agonist, oral gut peptideLinaclotide (brand names Linzess and Constella) is a prescription medicine for three long-term gut conditions: irritable bowel syndrome with constipation,…Liraglutide
GLP-1 receptor agonistLiraglutide is best known as the first daily GLP-1 medicine for diabetes and weight loss — sold as Victoza and Saxenda, it's a lab-made peptide that copies a…Livagen
Khavinson bioregulator peptideLivagen is a short synthetic peptide from the Russian 'Khavinson' bioregulator family, marketed for the liver and blood cells.LL-37
Cathelicidin antimicrobial peptideLL-37 is the only human cathelicidin — a natural antimicrobial peptide the body makes as part of its immune system, best known for fighting microbes and…Matrixyl
Topical cosmetic signal peptide (matrikine)Matrixyl (pal-KTTKS) is a topical cosmetic peptide best known for reducing the look of fine lines and wrinkles, found in many anti-aging serums and creams.Mazdutide
GLP-1 / glucagon receptor dual agonistMazdutide is a lab-made peptide best known for weight loss and blood-sugar control — it activates both the GLP-1 and glucagon receptors at once (a 'dual…Melanotan II
Melanocortin receptor agonist (α-MSH analog)Melanotan II (MT-II) is a synthetic peptide known as 'the tanning peptide': it mimics the natural hormone alpha-MSH and darkens the skin by boosting its…Metreleptin
Leptin analogMetreleptin is a lab-made copy of leptin, the hormone that fat tissue normally releases to tell the brain how much energy is stored in the body.MGF
Mechano growth factor (IGF-1 splice variant)MGF (mechano growth factor) is a synthetic peptide based on a splice variant of IGF-1 that muscles briefly produce in response to mechanical stress and…MK-677 (Ibutamoren)
Ghrelin/GHS-R1a agonist (small molecule, not a peptide)MK-677 (Ibutamoren) is a growth hormone releaser that prompts the pituitary gland to release the body's own growth hormone by acting on the ghrelin (hunger…MOTS-c
Mitochondrial-derived AMPK-activating peptideMOTS-c is a small peptide encoded by mitochondrial DNA, studied as an 'exercise mimetic' for its effects on metabolism and insulin sensitivity.NAD+
Endogenous coenzyme; cellular energy and signaling cofactorNAD+ is best known for powering cellular energy production and supporting cellular repair, and because levels naturally decline with age, it's widely studied…Octreotide
Somatostatin analogue (somatostatin receptor ligand), growth-hormone suppressingOctreotide (brand names Sandostatin and Mycapssa) is a prescription medicine that turns growth hormone down.Orforglipron
Oral small-molecule GLP-1 receptor agonistOrforglipron is best known as the first GLP-1 pill for weight loss — sold as Foundayo, it's a once-daily tablet that works the same way as injectable GLP-1…Ovagen
Khavinson short-peptide bioregulatorOvagen is marketed as a Russian 'Khavinson' bioregulator peptide for the liver and intestines.Oxytocin
Nonapeptide posterior-pituitary hormoneOxytocin is the body's 'love hormone' — best known for driving social bonding, trust, and connection (it also triggers labor contractions and milk letdown).P021
CNTF-derived neurotrophic peptide mimeticP021 is a small, lab-designed peptide studied for brain protection and memory support in Alzheimer's research.Pancragen
Khavinson tetrapeptide bioregulatorPancragen is a peptide marketed for the pancreas and blood-sugar control, the organ that makes insulin.PE-22-28
Spadin analog / TREK-1 channel blockerPE-22-28 is a short, lab-designed peptide studied for depression. In mouse studies, it produces antidepressant-like effects noticeably faster than standard…Pinealon
Khavinson short peptide; pineal-targeted bioregulatorPinealon is a peptide marketed for cognition, sleep, and brain health, tied to the pineal gland and central nervous system.PNC-27
p53-derived membrane-active peptidePNC-27 is a lab-made peptide studied experimentally as a cancer-cell killer. In laboratory studies, it binds a protein called HDM-2 found on cancer-cell…Pramlintide
Synthetic amylin (IAPP) analogPramlintide is best known as Symlin, the only FDA-approved amylin-class medicine — a synthetic version of amylin, a hormone the pancreas releases alongside…Prostamax
Khavinson tetrapeptide bioregulatorProstamax is a peptide marketed for prostate health and general men's health. It's a synthetic short peptide from the Russian 'Khavinson' bioregulator family,…PT-141 (Bremelanotide)
Melanocortin receptor (MC4R) agonistPT-141 (bremelanotide) is a peptide best known for boosting sexual desire and arousal — and unlike Viagra, which works on blood flow, it acts in the brain's…PYY
Gut satiety hormone; npy y2 receptor agonistPYY is a hormone your gut releases after you eat. Its active form, called PYY3-36, is one of the signals that tells the brain a meal has arrived and that it…Retatrutide
GLP-1/GIP/glucagon receptor triple agonistRetatrutide is a lab-made peptide studied for weight loss and type 2 diabetes — it activates three gut-hormone receptors at once (GLP-1, GIP, and glucagon, a…Selank
Tuftsin-derived heptapeptide; anxiolytic / immunomodulatory peptideSelank is a peptide best known for easing anxiety and promoting calm, steady focus without sedation, derived from tuftsin, a natural immune-system peptide.Semaglutide
GLP-1 receptor agonistSemaglutide is best known as the medicine behind Ozempic and Wegovy — a GLP-1 receptor agonist that copies a natural gut hormone involved in fullness and…Semax
ACTH(4-10)-derived heptapeptide; neuroprotective / nootropic peptideSemax is a nootropic peptide best known for supporting focus, mental clarity, and memory, and it's studied for stroke recovery and brain protection.Sermorelin
GHRH(1-29) fragment / GHRH receptor agonistSermorelin is a growth hormone releaser, a synthetic fragment of growth hormone-releasing hormone (GHRH) that prompts the pituitary gland to release the…Setmelanotide
Melanocortin-4 receptor (MC4R) agonistSetmelanotide (brand name Imcivree) is a prescription medicine that reduces hunger and body weight in people whose brain is not getting the signal to stop…SLU-PP-332
Pan-ERR agonist (small molecule, not a peptide)SLU-PP-332 is studied as an 'exercise mimetic': researchers are interested in it for reproducing training-like effects such as more oxidative muscle fibers,…SNAP-8
Topical cosmetic peptide (acetyl octapeptide-3)SNAP-8 (acetyl octapeptide-3) is a topical cosmetic peptide marketed for softening expression lines, like forehead and crow's-feet lines.SS-31
Mitochondrial-targeted tetrapeptide; cardiolipin-stabilizing peptideSS-31 (elamipretide) is a mitochondria-targeting peptide best known for supporting cellular energy and reducing oxidative stress.Survodutide
GLP-1/glucagon receptor dual agonistSurvodutide is a lab-made peptide best known for weight loss and, increasingly, for liver disease (MASH/NASH) — it activates both the GLP-1 and glucagon…Tamoxifen
Selective estrogen receptor modulator (SERM)Tamoxifen (brand names Nolvadex, Soltamox) is best known for treating and preventing breast cancer in women, blocking estrogen receptors in some tissues while…TB-500
Thymosin beta-4 fragment; regenerative peptideTB-500 is a synthetic peptide best known for research into tissue healing and recovery — tendon, ligament, wound, and cardiac repair.Teduglutide
Glucagon-like peptide-2 (GLP-2) receptor agonistTeduglutide (brand names Gattex and Revestive) is a prescription medicine for people with short bowel syndrome — a serious condition, usually following major…Teriparatide
Parathyroid hormone (1-34) fragment, bone-anabolicTeriparatide is best known for building new bone - unlike most osteoporosis drugs, which just slow bone loss, teriparatide actively grows it, given as a small…Tesamorelin
GHRH analog; growth hormone secretagogueTesamorelin is a growth hormone releaser, a synthetic GHRH analog that prompts the pituitary gland to release the body's own growth hormone.Tesofensine
Triple reuptake inhibitor (SNDRI), non-peptideTesofensine is an oral compound studied for weight loss — it works by affecting three brain chemicals (serotonin, norepinephrine, and dopamine) that influence…Testagen
Khavinson bioregulator peptide (tetrapeptide)Testagen is marketed for reproductive and testicular support based on its name, but the actual peptide (Lys-Glu-Asp-Gly) was built from the amino-acid makeup…Testosterone
Androgenic steroid hormone (not a peptide)Testosterone is the body's main male sex hormone, driving muscle mass, libido, energy, and male sexual development. It's a steroid hormone, not a peptide.Thymalin
Khavinson thymus-extract bioregulator peptideThymalin is a thymus-derived peptide complex best known as a Russian-approved immune-system regulator, given by injection for immune-related and age-related…Thymosin Alpha-1
Synthetic immunomodulatory peptideThymosin alpha-1 (brand name Zadaxin, generic name thymalfasin) is a synthetic 28-amino-acid peptide best known as an immune-system modulator.Tirzepatide
GLP-1 / GIP dual receptor agonistTirzepatide is best known as the medicine behind Mounjaro and Zepbound — a lab-made peptide that activates two gut-hormone receptors at once (GLP-1 and GIP, a…UBT251
GLP-1/GIP/glucagon receptor triple agonistUBT251 is a lab-made peptide being studied for weight loss and type 2 diabetes. Like retatrutide, it switches on three gut-hormone receptors at once (GLP-1,…Vesugen
Khavinson bioregulator peptide (tripeptide)Vesugen is marketed as a blood-vessel peptide and an anti-aging ('geroprotector') peptide, though the 'vascular' label reflects how the Russian 'Khavinson'…Vilon
Khavinson bioregulator peptide (dipeptide)Vilon is marketed for immune support, tied to the thymus, the gland that trains immune cells.VIP
Endogenous vasoactive/immunomodulatory peptideVIP (vasoactive intestinal peptide) is a natural signaling molecule the body makes throughout the gut, lungs, nerves, and immune system, best known for…