The peptide encyclopedia
Every compound in the library, searchable by name, alias or effect. Filter by category, level and how you want the results ordered — then open a dossier for the full picture.
34 compounds matched
BPC-157
Body Protection Compound 157 — pentadecapeptide
Repair & Recovery
The repair peptide the rest of the field is measured against.
TB-500
Thymosin Beta-4 fragment
Repair & Recovery
Systemic repair signalling, rather than site-specific.
MGF
Mechano growth factor — IGF-1Ec splice variant
Repair & Recovery
A genuine exercise-repair signal with zero human injection data.
Ipamorelin
NNC 26-0161
Longevity
A selective growth-hormone secretagogue with a clean profile.
CJC-1295
Modified GRF 1-29, CJC-1295 without DAC
Growth & Performance
A GHRH analogue built for a sharp, short pulse.
Kisspeptin-10
KISS1-derived decapeptide — GnRH pathway activator
Growth & Performance
The peptide that controls the pulse generator behind the reproductive axis.
Tesamorelin
GHRH(1-44) analogue — Egrifta
Growth & Performance
The GHRH analogue with an approval and a narrow indication.
Sermorelin
GHRH(1-29) — growth hormone-releasing hormone fragment
Growth & Performance
The oldest GHRH fragment, still sold on a plausible mechanism and thin outcome data.
GHRP-2
Pralmorelin — ghrelin receptor hexapeptide
Growth & Performance
Reliable growth hormone pulses, unreliable promises about what they do.
GHRP-6
Growth hormone releasing hexapeptide — ghrelin receptor agonist
Growth & Performance
The compound that revealed ghrelin — and reliably makes you hungry.
Hexarelin
GH-releasing hexapeptide
Growth & Performance
The secretagogue with a cardiac side story and a tolerance problem.
IGF-1 LR3
Insulin-like growth factor-1 LR3 — long-acting analogue
Growth & Performance
A potent growth signal with no human trial behind it and a hypoglycaemia risk.
Follistatin-344
FS-344 — myostatin-binding protein; trials used AAV gene delivery
Growth & Performance
Myostatin inhibition's real research is gene therapy — not the injected peptide being sold.
Semax
ACTH(4-10) analogue
Cognitive
A Russian nootropic peptide with genuine human data behind it.
Cerebrolysin
Porcine brain-derived peptide preparation
Cognitive
A peptide mixture from porcine brain, used clinically in some countries and unapproved in others.
DSIP
Delta sleep-inducing peptide — nine amino acids
Cognitive
A sleep peptide from the 1970s whose human evidence never matched its name.
Dihexa
N-hexanoic-Tyr-Ile-(6) aminohexanoic amide — angiotensin IV analogue
Cognitive
A cognitive-enhancement candidate with striking animal data and no human testing.
Selank
Tuftsin analogue
Cognitive
The anxiolytic side of the cognitive peptide family.
Retatrutide
LY3437943 — triple GLP-1 / GIP / glucagon receptor agonist
Fat Loss & Metabolic
The triple agonist that produced the largest weight reductions yet reported in a randomised obesity trial.
Cagrilintide
Long-acting amylin analogue — studied in combination with semaglutide
Fat Loss & Metabolic
An amylin analogue built to sit alongside a GLP-1 and push appetite suppression further.
AOD-9604
hGH fragment 176–191
Fat Loss & Metabolic
A fragment of growth hormone sold for fat loss, with trial results far more modest than the marketing.
Semaglutide
GLP-1 receptor agonist (Ozempic, Wegovy)
Fat Loss & Metabolic
The most thoroughly studied compound on this site — and a prescription medicine.
MOTS-c
Mitochondrial open reading frame of the 12S rRNA-c — 16 amino acids
Fat Loss & Metabolic
A peptide encoded in mitochondrial DNA, studied as an exercise mimetic.
Tirzepatide
Dual GIP/GLP-1 receptor agonist (Mounjaro, Zepbound)
Fat Loss & Metabolic
A dual agonist that outperformed single GLP-1 receptor agonists on weight.
GHK-Cu
Copper tripeptide-1
Skin & Aesthetics
A copper-binding tripeptide with a long cosmetic history.
Melanotan II
MT-II — synthetic alpha-MSH analogue
Skin & Aesthetics
The tanning peptide that was never approved and changes moles as well as skin.
Elamipretide (SS-31)
SS-31 — mitochondria-targeted tetrapeptide
Longevity
Elegant mitochondrial biology, repeatedly disappointing trial endpoints.
Humanin
24-amino-acid mitochondrial-derived peptide; HNG is a synthetic analogue
Longevity
The mitochondrial peptide that protects cells in the dish — and is sold well beyond its evidence.
Epithalon
Epitalon, AEDG tetrapeptide
Longevity
A telomerase-activating tetrapeptide built on a much bigger claim.
Thymosin Alpha-1
Tα1, Zadaxin
Immune & Gut
An immune-modulating peptide with actual clinical approvals.
LL-37
Cathelicidin antimicrobial peptide — CAMP
Immune & Gut
A natural antimicrobial peptide with a two-sided immune reputation.
VIP
Vasoactive intestinal peptide — 28 amino acids
Immune & Gut
A signalling peptide central to immune tolerance and gut function.
KPV
Lysine-Proline-Valine
Immune & Gut
A tiny tripeptide for the gut side of inflammation.
NAD+
Nicotinamide adenine dinucleotide
Longevity
Not a peptide — but the molecule most of the longevity field orbits.