The compound library

Cagrilintide is a once-weekly injection that copies a natural "I'm full" hormone called amylin, and large human trials show it drives major weight loss on its own and even more when paired with semaglutide (the combo is called CagriSema).

EPO is the hormone your kidneys make to tell your bone marrow to produce more red blood cells, and a lab-made copy of it is a real, approved medicine for serious anemia - the same red-blood-cell boost is why it's also been abused, illegally, by endurance athletes.

hCG is a hormone that acts like your body's own LH signal, telling the testes to make testosterone and sperm - doctors use it mainly to treat low testosterone and infertility in men without shutting down fertility the way testosterone shots do.

hMG is an approved fertility injection that gives the body a dose of two hormones, FSH and LH, needed to grow eggs for IVF or kick-start sperm production in men with certain hormone problems.

Mazdutide is a once-weekly injection that turns on two gut-hormone signals at once (GLP-1 and glucagon) and, in large human trials, produces major weight loss and blood sugar improvement in people with obesity or type 2 diabetes.

Retatrutide is an experimental once-weekly injection that activates three gut-hormone signals at once to drive major weight loss and better blood sugar control.

Survodutide is an experimental once-weekly injection that switches on two gut hormone signals at once (GLP-1 and glucagon), and in large human trials it produces major weight loss, better blood sugar control, and less fat in the liver.

Teriparatide is an FDA-approved daily injection (brand name Forteo) that rebuilds bone in people with serious osteoporosis, made from the active piece of parathyroid hormone.

Abaloparatide is an FDA-approved daily injection that rebuilds bone and lowers fracture risk in postmenopausal women with severe osteoporosis.

Alprostadil is a lab-made copy of a natural body signal (prostaglandin E1) that relaxes blood vessels, and it's an approved prescription drug used mainly to treat erectile dysfunction and to keep a critical blood vessel open in newborns with certain heart defects.

Orforglipron is a once-daily pill version of the GLP-1 weight-loss and diabetes drugs (like Ozempic and Wegovy) that works without a needle.

PT-141 is the research name for bremelanotide, an FDA-approved injection (brand name Vyleesi) that boosts sexual desire in premenopausal women with a diagnosed low-desire disorder.

Semaglutide is an approved prescription medicine (Ozempic, Wegovy, Rybelsus) that copies a gut hormone to lower blood sugar and shrink appetite, and it now also has FDA approval for a serious form of fatty liver disease.

Tirzepatide is a once-weekly injectable medicine (sold as Mounjaro for diabetes and Zepbound for weight loss) that copies two natural gut hormones to sharply lower blood sugar and drive major, sustained weight loss.

Dulaglutide (Trulicity) is a once-a-week injection for type 2 diabetes that lowers blood sugar, gives modest weight loss, and cuts the risk of heart attack and stroke.

Liraglutide is a once-daily injectable medicine, sold as Victoza for type 2 diabetes and Saxenda for weight loss, that copies a gut hormone to lower blood sugar and curb appetite.

Melanotan I is the same peptide as the approved drug afamelanotide (Scenesse) - it makes skin produce more of its own protective pigment, and it's approved to prevent sun-triggered pain in a rare disease, though the "Melanotan I" sold online for tanning is an unregulated, unverified version of it.

Tesamorelin (brand name Egrifta) is an FDA-approved daily injection that reduces deep belly fat in people with HIV-related fat redistribution by boosting the body's own growth hormone.

Exenatide is an FDA-approved injectable medicine for type 2 diabetes that helps the body release insulin at the right time, lowers blood sugar, and often causes modest weight loss.

HGH (somatropin) is a lab-made copy of the growth hormone your pituitary gland normally makes, and it's an FDA-approved prescription medicine for people whose bodies don't make enough of it.

Gonadorelin is a lab-made copy of the brain's own GnRH hormone, used mainly as a diagnostic test of pituitary function and, in specialized cases, to restart reproductive hormone production.

Hyaluronic acid is a natural, water-holding substance your body already makes to cushion joints and plump up skin, and it's used medically as a knee injection, an eye-surgery aid, a cosmetic filler, and (more recently) an oral or topical skin-hydration product.

Oxytocin is a natural hormone that triggers labor contractions and milk letdown, and is also given as a drug for childbirth — it's separately being studied, with mixed results, as a nasal spray for social, mood, weight, and addiction problems.

Thymosin Alpha-1 is a natural immune-system hormone, sold as the drug Thymalfasin (Zadaxin), used to help the body fight chronic infections like hepatitis and to support recovery in serious illnesses like sepsis and COVID-19.

SS-31 (elamipretide) is a lab-made peptide that protects the energy-making parts of your cells, and it's now an FDA-approved drug for one rare disease, Barth syndrome, though most of its other uses are still experimental.

ACE-031 is a lab-made protein that soaks up the natural signals that hold back muscle growth, and it was tested in people with muscle-wasting disease before its maker stopped development over side effects.

Adamax is sold online as a longer-lasting, chemically tweaked version of Semax, a Russian brain-recovery peptide, but almost none of the actual published research is on this modified version.

AICAR (also sold under the research name acadesine) is a lab compound that flips on AMPK, the cell's low-fuel alarm switch, and it has been studied mainly as a heart-protecting drug during surgery and as a tool for metabolism research, not as a fitness or anti-aging supplement.

BPC-157 is a lab-made peptide, originally isolated from stomach juice, that's popular for healing tendons, muscles, joints, and gut tissue - but almost all of the proof so far comes from animals, not people.

Cerebrolysin is a mixture of small brain-derived peptides and amino acids, given by IV infusion, used mainly to help people recover after stroke, traumatic brain injury, or dementia.

DSIP is a decades-old research peptide first pulled from rabbit blood and studied as a possible natural sleep hormone, but it was never proven to work that way and has no approved medical use.

GHK-Cu is a copper-binding peptide your body already makes, best known as a skin-repair ingredient in anti-aging creams, with early animal research also looking at wound healing, joints, lungs, gut, and brain aging.

GHRP-2 (pralmorelin) is a lab-made hormone signal that pushes your pituitary gland to release a big burst of growth hormone; its real, proven job is as a hospital diagnostic test for growth hormone deficiency, not a self-use treatment.

GHRP-6 is a lab-made 6-amino-acid peptide that triggers a burst of your own growth hormone, and its main proven job is as a one-time diagnostic test for growth hormone deficiency, not a fat-loss or muscle drug.

Glutathione is a small molecule your own cells make to mop up cellular damage, and as a supplement it's best proven for lightening skin tone, not for the detox or anti-aging claims it's usually sold on.

Hexarelin is a lab-made peptide that strongly triggers the pituitary gland to release growth hormone, and has mostly been tested in short human hormone experiments and in animal studies looking at heart, kidney, and nerve protection.

Ipamorelin is a lab-made peptide that triggers a short, clean pulse of your own growth hormone, without the cortisol spike seen with older drugs in its class.

Melatonin is the hormone your brain releases at night to run your internal sleep clock, and as a supplement it's mainly used to fall asleep faster and reset your schedule after jet lag or shift work.

N-Acetyl Epitalon Amidate is a chemically capped version of Epitalon, a four-building-block peptide copied from pineal gland extract and studied for decades in aging, cancer-prevention, and sleep-clock research - but this exact capped version has never itself been tested in a single published study.

NAD+ is a molecule every cell needs to make energy and repair itself, and the pills and IV drips sold to 'boost' it are popular anti-aging products with exciting lab results but still-uncertain proof in people.

Pinealon is a lab-made three-piece peptide (Glu-Asp-Arg, also called EDR) developed in Russia as a brain-protecting, anti-aging supplement, studied mostly in aged rats and lab dishes with a few small human studies in older adults and stressed-out workers.

Selank is a lab-made version of a natural immune peptide that Russian researchers have studied for decades as a calming, anti-anxiety compound that doesn't sedate or cause dependence the way typical anxiety drugs do.

Semax is a lab-made mini-protein, built from a fragment of a stress hormone, that's been used as a prescription stroke-recovery drug in Russia for decades and is also tried informally elsewhere as a focus booster.

Sermorelin is a lab-made piece of a natural brain hormone that tells your pituitary gland to release more of your own growth hormone, and it has real decades-old medical history in children with growth hormone deficiency, but little solid proof behind today's anti-aging, muscle, and fat-loss claims.

SNAP-8 is a lab-made peptide used in anti-wrinkle creams and serums to soften expression lines around the eyes and forehead, working like a gentle, topical cousin of Botox.

TB-500 is sold online as an injectable version of thymosin beta-4, a small repair protein your body already makes at wound sites, marketed for faster healing of muscle, tendon, and other soft-tissue injuries - but almost none of the human research behind the story was actually done on the product people inject.

Tesofensine is an experimental weight-loss pill that was never approved as a medicine but produced some of the largest weight-loss results ever seen in obesity drug trials.

Melanotan II is an unapproved, black-market injectable peptide that darkens skin and boosts sexual arousal by switching on the body's tanning and desire hormone pathways.

ARA-290 (also called cibinetide) is a lab-made fragment of the hormone EPO, engineered to calm inflammation and help damaged nerves heal without raising red blood cell counts the way full EPO does.

CJC-1295 is a lab-made, long-lasting copy of the brain hormone that tells your body to release growth hormone, keeping GH and IGF-1 levels raised for days after a single shot.

BAM15 is a lab-made molecule that makes your cells burn fuel less efficiently on purpose, and in animal studies that has meant less body fat and better blood sugar - but it has never been tested in people.

Dermorphin is a super-potent, frog-skin-derived opioid painkiller studied only in animals and labs - it has no approved human use and is best known today as an illegal doping drug in horse racing.

Epithalon (also called Epitalon) is a lab-made four-piece peptide, copied from a natural pineal gland extract, that has been studied mainly in mice, rats, and lab dishes for slowing aging and lengthening telomeres, with almost no real human trial evidence behind it.

Follistatin is a protein your body already makes to block muscle-limiting signals, and lab-made versions are being studied in animals for muscle growth, muscle wasting, and metabolism, but it has never been tested as a treatment in people.

FOXO4-DRI is a lab-made peptide designed to selectively kill off old, worn-out "zombie" cells in the body, and so far it has only ever been tested in mice and in lab dishes.

IGF-1 DES (des(1-3)IGF-1) is a trimmed-down, super-charged version of the growth hormone-related hormone IGF-1, studied almost entirely in animals and lab dishes as a research tool - it is not an approved medicine and has never been tested in a human clinical trial.

IGF-1 LR3 is a lab-engineered, longer-acting version of the body's natural growth hormone IGF-1, studied almost entirely in animals and lab dishes as a growth-and-metabolism research tool, with no approved human use.

Kisspeptin-10 is the active core piece of the body's master reproductive-hormone switch, studied almost entirely in animals and lab dishes as a possible tool for fertility, bone, joint, mood, and blood-vessel health.

KPV is a tiny natural peptide - just three amino acids, Lysine-Proline-Valine - clipped from a hormone your body already makes, and in animal and lab studies it consistently calms down inflammation in the gut, skin, and other tissues.

LL-37 is a germ-fighting peptide your own immune system already makes — it's a hot research target for new antibiotics and wound treatments, but it isn't a supplement with any established human dose.

MGF is a lab-made piece of a natural muscle-repair signal (a close cousin of IGF-1) that people inject hoping it speeds up recovery from training or injury, but it has never been tested in a human clinical trial.

MOTS-c is a tiny protein your own mitochondria make to help cells handle stress and burn fuel better, and it's being studied as a possible "exercise in a shot" for metabolism and aging — but so far only in animals and lab dishes.

P21 (also called P021, Ac-DGGLAG-NH2) is a lab-made mini-peptide copied from a brain growth factor, studied only in mice and rats as a possible Alzheimer's treatment.

PE-22-28 is a lab-engineered peptide, built from a natural brain-signaling molecule called spadin, that blocked a nerve-cell 'brake' called the TREK-1 channel and lifted mood fast in mouse studies - but it has never been tested in a person.

PEG-MGF is a long-acting, lab-made version of a natural muscle-repair signal your body releases after hard exercise or injury, sold online as a muscle and recovery aid, but it has never been tested on people in a real clinical trial.

TB-500 Fragment is a lab-made snippet of a natural body-repair protein, sold online as a shortcut to faster healing, but almost none of the real research has tested this exact fragment.

Thymulin is a natural hormone your thymus gland makes to help train and calm down your immune system, but it has only ever been tested by injecting it into animals - never given to people as a treatment - so any human benefit is still a research idea, not a proven one.

VIP (vasoactive intestinal peptide) is a natural hormone your body already makes in the gut, lungs, heart, and brain that relaxes blood vessels and calms inflammation - it's a major research subject, not a proven self-use peptide.

Vilon is a lab-made two-amino-acid peptide studied almost entirely in aging mice and rats, where it extended lifespan and cut tumor rates - it has not been tested in a human clinical trial.

5-Amino-1MQ is a lab-made compound that blocks a metabolism enzyme called NNMT, and so far it has only been tested in mice, rats, and lab cell dishes for fat loss, blood sugar control, and muscle recovery - never in a human trial.

AHK-Cu is a copper-carrying peptide studied in the lab for helping hair follicles grow, and it's a close chemical cousin of the much better-known skincare ingredient GHK-Cu.

PNC-27 is a lab-made peptide designed to punch holes in cancer cells and kill them while leaving healthy cells alone, but it has only ever been tested in lab dishes and mice, never in humans.

AOD-9604 is a lab-made fragment of growth hormone that was tested as a fat-loss drug for obesity but was never approved and is now sold online as an unregulated research chemical.

HGH Fragment 176-191 (AOD9604) is a small piece cut from the tail end of the human growth hormone molecule, designed to burn fat without the muscle-growth or blood-sugar side effects of full growth hormone.

Adipotide is a lab-made injectable peptide designed to destroy the blood vessels that feed fat tissue, and it has only ever been tested in monkeys and mice, never in people.

Dihexa is a lab-made brain-growth-factor drug that has repaired memory problems in mice and rats but has never been tested in a single human study.

SLU-PP-332 is a lab-made compound designed to flip on the same genetic switches that a hard workout flips on, and so far it's only been tested in mice and in isolated human cells in a dish, never in a living person.