Peptide Library
Plain-language primers on the peptides people actually talk about — what each one is, how it works, and what the evidence really shows.
Educational summaries. Not medical advice, not a recommendation to use any compound.
Semaglutide
Clinical evidenceThe once-weekly GLP-1 that turned 'food noise' into a household phrase.
Tirzepatide
Clinical evidenceThe dual GLP-1/GIP drug that made semaglutide look like last year's model.
Retatrutide
Clinical evidenceA triple-target experimental drug producing bariatric-surgery levels of weight loss — still awaiting approval.
Liraglutide
Clinical evidenceThe daily GLP-1 that proved the whole idea, then got outshone by its weekly successors.
BPC-157
PreclinicalThe repair peptide everyone in the gym talks about — powerful in rats, still unproven in humans.
TB-500
PreclinicalNot the whole protein — just its active 7-amino-acid fragment, sold to racehorses before athletes.
NAD+
Clinical evidenceThe longevity industry's biggest seller is actually a coenzyme in every cell, and most of the IV-drip promise rests on thin evidence.
GHK-Cu
Limited human dataA copper-carrying peptide from young blood in 1973 that still anchors today's anti-aging serums.
Ipamorelin
Limited human dataThe cleanest growth-hormone releaser ever designed — it nudges GH without dragging cortisol along.
CJC-1295
Limited human dataTwo different molecules share this name — one lasts a week, the other clears in 30 minutes.
Sermorelin
Limited human dataThe only GHRH analog the FDA ever approved — and then quietly nobody kept selling it.
Tesamorelin
Clinical evidenceThe only GHRH analog with full FDA approval — and one of the few tools that targets deep belly fat on purpose.
SS-31 (Elamipretide)
Clinical evidenceThe first mitochondria-targeting peptide to win FDA approval, for one ultra-rare disease, while its broader longevity story stays a hope.
Glutathione
Clinical evidenceThe body's own master antioxidant, often sold for skin whitening, where the real story is route, delivery, and overclaimed wellness endpoints.
Oxytocin
Clinical evidenceA Nobel-winning 'love hormone' — a standard-of-care drug in obstetrics, and an unproven social elixir everywhere else.
Insulin
Clinical evidenceThe 'peptide everyone knows' — a lifesaver for diabetes, and a dangerous tool that has no proven muscle-building record.
Human Growth Hormone (HGH)
Clinical evidenceA 40-year-old approved drug whose off-label anti-aging life has run far ahead of its evidence.
Selank
Clinical evidenceA Russian anxiolytic that held its own against a benzodiazepine in trials — without the fog.
Semax
Clinical evidenceA Russian cognitive peptide with more human data than almost any nootropic — approved there for stroke since 2011.
Metabolic & weight loss
Cagrisema
Clinical evidenceNovo's bet on 25% weight loss landed at 22.7% and lost the head-to-head — still the number-two drug in its class.
Orforglipron
Clinical evidenceThe first GLP-1 weight-loss drug you can just swallow, approved by the FDA in 2026.
Survodutide
Clinical evidenceA weight-loss drug that pairs the appetite hormone with the blood-sugar-raising one — and shows a striking effect on the liver.
Mazdutide
Clinical evidenceThe GLP-1/glucagon dual agonist that reached approval in China ahead of its Western rivals.
Cagrilintide
Clinical evidenceA long-acting copy of the fullness hormone amylin — a second appetite mechanism that is not another GLP-1.
Eloralintide
Clinical evidenceEli Lilly's copy of the fullness hormone amylin, showing a remarkable 20% weight loss from a mechanism that skips GLP-1 entirely.
Healing & recovery
KLOW
Community reportsFour peptides in one vial, zero trials on the combination — clinic logic packaged for convenience.
BPC-157 + TB-500 Blend
PreclinicalThe 'wolverine stack' — two repair mechanisms in one vial, a decade of folklore and zero controlled trials.
KPV
PreclinicalThe anti-inflammatory tail of a pigmentation hormone, stripped of the side effects, with strong lab logic but almost no human trials.
Thymosin α-1
Clinical evidenceA genuinely approved drug abroad for hepatitis, sold in the US as a generic immune boost for uses backed only by extrapolation.
TB-500 Fragment
PreclinicalThe actin-binding engine of TB-500 sold as a substitute at a sixth of the cost, where the engine works but the missing parts matter.
Larazotide
Clinical evidenceThe most advanced attempt yet to keep the gut lining tight — a promising idea that failed its final test.
GHK-Cu + BPC-157 Blend
Mixed evidenceThe repair stack that splits the job: one peptide rebuilds the surface, the other works on the structure underneath.
BPC-157 + KPV Blend
Mixed evidenceA gut-repair pairing: BPC-157 rebuilds the tissue while KPV quiets the inflammation feeding the damage.
Cibinetide
Mixed evidenceA fragment of erythropoietin designed to protect injured tissue without making red blood cells — elegant in animals, disappointing in people.
VIP
Mixed evidenceA natural peptide your body already makes — with a real approved use and a long string of claims that never made it to trial.
Growth hormone / muscle
CJC-1295 + Ipamorelin Blend
Community reportsThe growth-hormone stack peptide clinics built their practice on — textbook receptor pairing, no trial to match.
HGH Frag 176-191
Limited human dataThe supposed fat-burning end of growth hormone, isolated and sold freely, even though the upgraded version already failed in human trials.
GHRP-2
Clinical evidenceIt reliably releases growth hormone, but so does ipamorelin, without the cortisol, prolactin, and hunger that come along with this one.
GHRP-6
Clinical evidenceThe original ghrelin mimic, dominant in 2005 but largely replaced by cleaner options by 2015, yet still on shelves for its appetite effect.
AOD 9604
Clinical evidenceThe best-studied fat-burning fragment was tested honestly in full clinical trials and lost.
IGF-1 LR3
Mixed evidenceEngineered to escape the body's natural brakes on a growth signal, it builds muscle while raising one of the cleanest cancer-risk flags in epidemiology.
Follistatin 344
PreclinicalA muscle-gene blocker with genuine science behind it, but no human performance trials, a broad off-target profile, and a market full of questionable vials.
Tesamorelin + Ipamorelin Blend
Mixed evidenceA growth-hormone stack with one FDA-approved half and a selective signal from the other.
Sermorelin + GHRP-2 Blend
Mixed evidenceThe early growth-hormone stack — the receptor logic is textbook, but one of its two halves is the dated version.
Testosterone
Clinical evidenceThe male sex hormone — a reference compound with ninety years of use, and the odd one out on a peptide board.
Hexarelin
Community reportsA potent GH-releasing peptide — strong hit, but it desensitizes and is less 'clean.'
MK-677 (Ibutamoren)
Community reportsThe oral GH enhancer — take a pill, sustain elevated GH and IGF-1 for a full day.
Cognitive & brain
Pinealon
PreclinicalA smaller, less-studied sibling of epithalon marketed as a brain peptide, with promising lab results and essentially no human data.
Dihexa
PreclinicalA rodent memory molecule its developer's own company passed on, with a cancer-relevant mechanism that makes the risk real.
PE 22-28
PreclinicalA seven-amino-acid fragment studied as an antidepressant — in mice, by one lab, never in a human.
Cerebrolysin
Clinical evidenceA pig-brain extract studied in thousands of patients for stroke and dementia — with real early signals that fade over time.
Adamax
Community reportsA supposedly improved version of Semax — but the molecule has never been tested, and its record is completely empty.
Bromantane
Limited human dataA Russian actoprotector that boosts dopamine synthesis — not a peptide, but a unique nootropic with real human data.
Longevity & cellular
MOTS-c
PreclinicalA peptide your mitochondria make that rose and fell with age in mice, finally beginning its first human tests.
Epithalon
PreclinicalA Russian pineal-gland peptide sold as a lifespan extender on the strength of one lab's single unreplicated human study.
Humanin
PreclinicalThe first peptide ever found hiding inside mitochondrial DNA, with strong protective biology and zero human trials.
Vilon
Community reportsTwo amino acids sold for anti-aging, with decades of promotion but no registered clinical trial under its own name.
Thymalin
Community reportsA calf-thymus extract with decades of clinical reporting — and not one study you can look up in a registry.
FOXO4-DRI
PreclinicalThe peptide for clearing out 'zombie' cells — deep-research territory, huge longevity buzz.
Energy & mitochondria
SLU-PP-915
PreclinicalThe exercise-mimetic redesigned so that you can swallow it instead of injecting it into a mouse.
Skin & beauty
Melanotan II
Limited human dataInvented to prevent skin cancer in the 1980s, sold on TikTok in the 2020s as a tanning drug.
GLOW
Community reportsThe cosmetic-first cousin of KLOW — three peptides aimed at skin and recovery, weighted toward GHK-Cu.
Melanotan I
Clinical evidenceA real FDA-approved drug for a rare sun-intolerance disease, sold at the same time as a gray-market tanning shot that is not the approved product.
AHK-Cu
PreclinicalA copper peptide riding on its famous cousin's reputation to back hair-growth claims it cannot fully support.
Snap-8
Mixed evidenceMarketed as 'topical Botox,' it is an eight-amino-acid skincare peptide fighting an uphill battle to reach the muscle through your skin.
Sleep & recovery
DSIP
Limited human dataA fifty-year-old sleep peptide with genuine and reproducible effects for some people, and still no confirmed receptor or modern protocol.
Sexual health
HCG
Clinical evidenceA pregnancy hormone with rock-solid fertility uses, a debunked diet afterlife, and a big off-label TRT role.
PT-141 (Bremelanotide)
Clinical evidenceAn accidental sex peptide: the tanning-drug team kept noticing everyone got erections.
Kisspeptin-10
Limited human dataThe master switch for the entire reproductive system — a clean signal, still in phase 2.
Gonadorelin
Clinical evidenceA Nobel-winning reproductive hormone with a real clinical past, asked to do a job HCG usually does cleaner.
Triptorelin
Mixed evidenceA long-acting prostate-cancer drug that some communities reinvented as a single-shot hormone restart, resting on a thin anecdote.
Tadalafil
Clinical evidenceThe long-acting erection pill that also treats enlarged prostate and a form of high blood pressure in the lungs.
Research & peptides
5-Amino-1MQ
PreclinicalA pre-clinical lab molecule that reached the gray market years ahead of any human study, promoted hardest by the people selling it.
SLU-PP-332
PreclinicalA lab molecule that switches on your cells' endurance-exercise program in mice and reached the market years before any human trial.
Brenipatide
Limited human dataAn incretin-class peptide being tested not for weight loss but for addiction — a question the field is watching closely.

