Every peptide, mapped to the body.

A small molecule, not a peptide, sold alongside peptides for fat loss.

A synthetic analog of parathyroid hormone-related protein for osteoporosis.

A decoy receptor tested for muscle diseases, stopped after bleeding side effects.

A six amino acid cosmetic peptide marketed as a gentle alternative to botulinum toxin.

An eight amino acid extension of argireline, marketed for stronger anti-wrinkle effects.

A four amino acid peptide used in eye creams for puffiness and dark circles.

An alpha-MSH analog implant that lets people with a rare light-sensitivity disease tolerate sun.

A copper-binding tripeptide marketed for hair growth and skin thickness.

A weekly GLP-1 receptor agonist that proved heart benefit but was withdrawn for business reasons.

An investigational single molecule from Novo Nordisk that activates both GLP-1 and amylin receptors.

A seven amino acid fragment that opposes angiotensin II, studied in several conditions.

A synthetic form of the body's own blood pressure hormone, used in septic shock.

A modified fragment of human growth hormone promoted for fat loss that did not work in large trials.

A 13 amino acid peptide that strengthens the heart and widens blood vessels, studied in heart failure.

An investigational weekly GLP-2 analog for short bowel syndrome with intestinal failure.

An oxytocin receptor blocker used to delay preterm labor in Europe.

A synthetic version of vasoactive intestinal peptide, used by injection with phentolamine for erectile dysfunction in some countries.

A cyclic peptide antibiotic found in many over-the-counter wound ointments.

A cyclic peptide CXCR4 blocker tested with chemotherapy in breast cancer.

A 20 amino acid blood thinner based on leech hirudin, used during heart procedures.

A 15 amino acid gut-protein fragment studied almost entirely in animals, with growing interest in compounding.

A melanocortin receptor agonist injected before sex, approved for low desire in premenopausal women.

An experimental antibiotic mimic of host defence peptides.

A GnRH agonist used in fertility treatment and cancers in many countries.

An investigational long-acting amylin analog from Novo Nordisk, tested alone and combined with semaglutide.

A 32 amino acid hormone, usually from salmon, used for bone conditions and high calcium.

A long-acting oxytocin analog used to prevent bleeding after childbirth outside the United States.

A natural dipeptide found at high levels in muscle and brain, sold as an antioxidant.

A recombinant atrial natriuretic peptide used for acute heart failure in Japan.

A chimeric natriuretic peptide designed to protect kidney function in heart failure.

A mixture of peptides made from pig brain, used in parts of Europe and Asia after stroke and head injury.

A GnRH antagonist that prevents early ovulation during IVF.

An 11 amino acid peptide derived from erythropoietin that calms inflammation without raising red blood cells.

A modified growth hormone-releasing hormone, often paired with ipamorelin.

A last-resort polypeptide antibiotic for highly resistant Gram-negative infections.

Short collagen fragments sold as powders to support skin, joints and bone.

A four amino acid peptide from the Khavinson group, proposed to help recovery of nerve cells.

A polypeptide extract from calf brain cortex used in Russia after brain injury and in children with delays.

A long-acting form of ACTH, the hormone that tells the adrenal glands to make cortisol.

The first 24 amino acids of ACTH, used as a test for adrenal insufficiency.

An 11 amino acid cyclic peptide from a soil fungus that made organ transplantation routine.

A long-acting lipoglycopeptide antibiotic given as one or two infusions.

A cyclic lipopeptide antibiotic from soil bacteria for serious skin and bloodstream infections.

A stable glucagon analog that does not need to be mixed before use.

An eight amino acid peptide from activity-dependent neuroprotective protein, tested in a rare dementia.

A GnRH antagonist for advanced prostate cancer that lowers testosterone without an initial surge.

A nine amino acid peptide first isolated from rabbit brain in the 1970s and tested for insomnia.

A recombinant version of hirudin, a leech protein, used to prevent clots after hip surgery.

A synthetic vasopressin analog that reduces urine production.

A kappa opioid receptor agonist peptide that relieves itch in people on dialysis.

An experimental memory-enhancing compound derived from angiotensin IV, tested only in animals.

A tiny synthetic molecule modeled on snake venom, marketed as a topical wrinkle reducer.

A once-weekly GLP-1 receptor agonist used in type 2 diabetes with proven heart benefit.

A 60 amino acid kallikrein blocker for attacks of hereditary angioedema.

A class of cyclic lipopeptide antifungals and first-line treatment for invasive Candida infections.

An investigational weekly GLP-1 receptor agonist developed in China by Sciwind Biosciences.

A long-acting GLP-1 receptor agonist that showed heart and kidney benefit in a large trial.

A four amino acid peptide that targets mitochondria, approved in 2025 for Barth syndrome.

An eel-derived calcitonin analog approved in Japan for osteoporosis pain.

An investigational amylin receptor agonist from Eli Lilly in development for obesity.

A 36 amino acid injectable HIV drug, the first fusion inhibitor.

An investigational oral PCSK9 inhibitor from Merck that sharply lowers LDL cholesterol.

A four amino acid peptide promoted for sleep and longevity, studied mainly by one research group.

A cyclic peptide platelet blocker modeled on rattlesnake venom, used in acute coronary syndromes.

An injected calcimimetic peptide for high parathyroid hormone in people on dialysis.

The first GLP-1 receptor agonist, derived from a hormone found in Gila monster saliva.

A natural protein that blocks myostatin, a brake on muscle growth, studied mostly through gene therapy.

A designer peptide that triggers aged senescent cells to self-destruct, shown in mice.

A piece of growth hormone sold for fat loss, closely related to AOD-9604.

A radioactive peptide used in PET scans to find neuroendocrine tumors.

A GnRH antagonist used in IVF to prevent early ovulation.

A natural copper-binding tripeptide used widely in skin creams and promoted as an injectable.

A growth hormone-releasing peptide approved in Japan only as a diagnostic test.

The first synthetic growth hormone secretagogue, known for making users very hungry.

A random mixture of four amino acids used in relapsing multiple sclerosis.

An investigational long-acting GLP-2 analog for short bowel syndrome, dosed once or twice weekly.

A 29 amino acid hormone used as emergency treatment for severe low blood sugar.

The body's main antioxidant, a three amino acid peptide, sold as drips, creams and skin-lightening shots.

The natural ten amino acid hormone that switches on the pituitary-gonad axis.

A GnRH agonist implant for hormone-sensitive cancers and endometriosis.

A six amino acid collagen fragment used in anti-aging creams.

A potent growth hormone secretagogue whose effect fades quickly with repeated use.

A GnRH agonist implant that lasts a year, for early puberty and prostate cancer.

A pregnancy hormone used in fertility treatment, and misused in weight-loss diets.

A 24 amino acid mitochondrial peptide found in a search for protective factors in Alzheimer disease.

A ten amino acid bradykinin blocker for attacks of hereditary angioedema.

An oral peptide that blocks the IL-23 receptor, developed for psoriasis.

A shortened form of IGF-1 used in labs, sold for local muscle growth.

A modified IGF-1 with an 83 amino acid sequence used mainly in cell culture, sold for muscle growth.

The 51 amino acid hormone that lowers blood sugar, and the first peptide drug ever used in medicine.

A five amino acid growth hormone secretagogue popular in wellness clinics.

A hormone-like protein released by muscle during exercise, with a contested role in people.

A ten amino acid fragment of the hormone that switches on puberty and fertility.

A three amino acid fragment of alpha-MSH studied for gut and skin inflammation, mostly in animals.

A long-acting somatostatin analog injected monthly for acromegaly and neuroendocrine tumors.

An eight amino acid peptide once tested as an add-on to a gluten-free diet in coeliac disease.

A GnRH agonist used to shut down sex hormone production in prostate cancer, endometriosis and early puberty.

A 14 amino acid peptide taken by mouth that acts only inside the gut for irritable bowel syndrome with constipation.

A daily GLP-1 receptor agonist, the first of the class approved for chronic weight management.

A short-acting GLP-1 receptor agonist taken once daily, no longer sold in the United States.

The only cathelicidin in humans, an antimicrobial and wound-healing peptide produced by skin and immune cells.

A weekly growth hormone prodrug for children with growth hormone deficiency.

An oncolytic peptide injected into tumors to trigger an immune attack.

A radioactive peptide that delivers radiation directly to neuroendocrine tumors.

A radioactive targeted therapy for advanced prostate cancer.

An investigational monthly injection that pairs a GLP-1 agonist with an antibody that blocks the GIP receptor.

A dual GLP-1 and glucagon receptor agonist developed by Innovent, approved in China for obesity.

Recombinant IGF-1 for children whose bodies cannot make or respond to it.

A splice variant of IGF-1 released by muscle after stretch and damage, marketed for muscle growth.

An injectable alpha-MSH analog used for tanning and libido, with known safety warnings.

An oral growth hormone booster, not a peptide, widely sold alongside peptides.

A CXCR4 blocker that pushes stem cells into the blood for collection before transplant.

A 16 amino acid peptide encoded by mitochondrial DNA, studied for metabolism and exercise capacity.

A first-in-class peptide antibiotic targeting Pseudomonas aeruginosa.

A coenzyme involved in cellular energy, not strictly a peptide, sold as drips and injections.

A nasal-spray GnRH agonist for endometriosis and early puberty.

A TREM-1 inhibitor peptide tested in septic shock.

A 20 amino acid peptide tested to protect brain cells during stroke.

A recombinant B-type natriuretic peptide once widely used in acute heart failure.

An investigational synthetic analog of a natural brain peptide, in development for rare neurodevelopmental disorders.

A nine amino acid peptide used in skin-lightening products.

A dipeptide-like compound developed in Russia and sold as a memory aid.

An eight amino acid analog of somatostatin used for acromegaly and neuroendocrine tumors.

A long-acting lipoglycopeptide antibiotic given as a single infusion.

A 14 amino acid peptide found in blood that stimulates bone formation in animals.

A natural gut hormone that activates both GLP-1 and glucagon receptors, and inspired later dual agonists.

A nine amino acid hormone used to start labor and control bleeding after birth.

A small peptide based on ciliary neurotrophic factor, studied in mice for memory and neurogenesis.

An elastin-derived peptide marketed to improve skin firmness.

A five amino acid fragment of collagen with a fatty acid tail, the best-studied anti-wrinkle peptide.

A four amino acid fragment of an antibody, used to calm skin inflammation signals.

GHK with a fatty acid tail to help it cross the skin barrier.

A newer cosmetic peptide marketed to rebuild several structural proteins in skin.

A three amino acid peptide marketed to stimulate collagen production.

A long-acting prodrug of parathyroid hormone given once daily for hypoparathyroidism.

The full-length parathyroid hormone, once used for hypoparathyroidism and now withdrawn.

A multi-receptor somatostatin analog for Cushing disease and acromegaly.

A short synthetic peptide studied in mice as a fast-acting antidepressant.

A long-acting version of mechano growth factor, studied only in animals.

A pegylated cyclic peptide that blocks complement C3, approved for a rare blood disorder and for an eye disease.

A growth hormone receptor blocker for acromegaly.

An investigational GLP-1 and glucagon dual agonist from Altimmune, aimed at fatty liver disease.

A five amino acid peptide resembling an enkephalin, marketed to relax expression lines.

An investigational long-acting amylin analog from Zealand Pharma and Roche.

A magainin-like peptide cream tested for infected diabetic foot ulcers.

A three amino acid peptide from the Khavinson group, studied for brain protection.

A 16 amino acid guanylate cyclase-C agonist for constipation and irritable bowel syndrome.

An investigational oral peptide that stays in the gut and blocks immune cells from entering the bowel wall.

A last-resort cyclic peptide antibiotic, close relative of colistin.

A synthetic amylin analog injected at mealtimes alongside insulin.

Thyrotropin-releasing hormone, a three amino acid hormone from the hypothalamus.

A gut hormone released after eating that reduces hunger, studied for obesity but never approved.

An investigational once-weekly triple agonist of the GIP, GLP-1 and glucagon receptors from Eli Lilly.

A peptide-antibody fusion that stimulates platelet production in immune thrombocytopenia.

An investigational hepcidin mimetic injected under the skin for polycythemia vera.

A 27 amino acid gut hormone used as a diagnostic test for pancreas problems.

A synthetic analog of tuftsin used as a nasal anti-anxiety peptide in Russia.

A selective vasopressin V1a agonist tested in septic shock.

A once-weekly GLP-1 receptor agonist approved for type 2 diabetes, weight management and cardiovascular risk reduction.

A seven amino acid peptide derived from ACTH, used as a nasal spray in Russia after stroke.

Recombinant human relaxin-2, a pregnancy hormone tested in acute heart failure.

A growth hormone-releasing hormone fragment once approved for children and now compounded for adults.

A melanocortin-4 receptor agonist for rare genetic forms of severe obesity.

Lab-made human epidermal growth factor, a 53 amino acid protein used in serums for skin repair.

A synthetic fragment of the gut hormone cholecystokinin used in gallbladder and pancreas tests.

A once-weekly growth hormone for children and adults with growth hormone deficiency.

A weekly long-acting growth hormone for children.

Recombinant human growth hormone, a 191 amino acid protein used for growth failure and deficiency.

An investigational dual glucagon and GLP-1 receptor agonist being developed for obesity and fatty liver disease.

A lab-made fragment of a natural repair protein promoted for tissue healing and sports injury recovery.

A GLP-2 analog that helps the gut absorb nutrients in short bowel syndrome.

A lipoglycopeptide antibiotic for resistant skin infections and hospital pneumonia.

The first 34 amino acids of parathyroid hormone, a bone-building osteoporosis drug.

A vasopressin prodrug used for kidney failure in advanced liver disease.

A growth hormone-releasing hormone analog approved to reduce belly fat in people with HIV.

A thymus extract developed in the Soviet Union and promoted as an immune bioregulator.

A five amino acid fragment of thymopoietin used as an immune modulator in parts of Europe.

A 28 amino acid thymus peptide approved in dozens of countries but not in the United States.

A 43 amino acid protein present in nearly all human cells, studied for eye, heart and skin repair.

A nine amino acid thymus hormone that needs zinc to work.

A once-weekly dual GIP and GLP-1 receptor agonist approved for type 2 diabetes, obesity and sleep apnea in obesity.

A cosmetic peptide that imitates decorin, a protein that keeps collagen fibers evenly organized.

A GnRH agonist used for prostate cancer and central precocious puberty.

A synthetic analog of a small brain peptide approved for Rett syndrome.

A kidney-derived natriuretic peptide tested in acute heart failure and found not to help.

A glycopeptide antibiotic that remains a mainstay for resistant staph infections.

A nine amino acid hormone used to raise blood pressure in vasodilatory shock.

A modified cyclosporine for lupus nephritis.

A C-type natriuretic peptide analog that increases growth in children with achondroplasia.

A synthetic cone snail toxin injected into the spinal fluid for severe chronic pain.

A macrocyclic peptide that blocks complement C5, approved for generalized myasthenia gravis.