PeptideCompare134 monographs.
Mechanism, evidence level, EU status and COA guidance per compound. No dosages, no protocols — that belongs with a doctor.
Where research begins
Start your research here, not on a forum. Every compound in this encyclopedia gets the same treatment: what it actually does, how strong the evidence is, and where it stands legally in the EU — before a single supplier or price enters the picture.
Think of it as a reference shelf, not a shopping guide. No dosing charts, no stacking advice, no shortcuts — just mechanism, evidence tier, and legal status, compound by compound. Search by name, browse by category, or follow the evidence tier that matters to you.
Compare compounds side by side
Evidence, molecular data and EU prices — two at a time.
Browse by category
GLP-1 & Weight
Incretin, amylin, glucagon and other metabolic-axis compounds studied for appetite, body weight and glucose regulation.
Recovery & Healing
Compounds studied in tissue, tendon and gut repair, plus inflammation and immune-modulation pathways.
Growth Hormone Axis
GHRH analogues and GH secretagogues (GHRPs) that stimulate the body's own GH pulse, plus related reproductive-axis and pituitary-hormone compounds.
Anti-Aging & Longevity
Compounds studied in cellular aging, senescence and longevity pathways, including cosmetic anti-aging peptides.
Khavinson Bioregulators
A Russian gerontology research family of 20+ mostly ultra-short, tissue-specific peptides.
Neuro & Cognitive
Peptides and small molecules studied for cognition, stress response, sleep, mood and neuroprotection.
Muscle, IGF & Body Composition
IGF, myostatin and growth-factor pathway compounds studied for muscle and body composition, plus PTH-analogue, melanocortin and metabolic compounds.
Respiratory & Pulmonary
Lung-targeted peptides in clinical and preclinical development for fibrosis, emphysema, inflammation and mucus regulation.
Other compounds
Compounds that do not fit the other categories, such as diluents and solvents.
Longevity science — topics
Broader scientific overviews bringing multiple compounds together — separate from the individual monographs above.
Research Peptides
Overview of the peptide catalogue: how many compounds, vendors and price rows the database tracks, browse by category, and how the verification badges work.
NADNAD+ Precursors
NAD+ is a coenzyme involved in energy metabolism, DNA repair and sirtuin activity, and its levels are reported to decline with age. This topic covers NAD+ and its precursors NMN, NR, niacin and niacinamide.
SIRSirtuin Activators
Sirtuins are a family of seven NAD+-dependent proteins (SIRT1–SIRT7) involved in longevity, DNA repair, inflammation and metabolism. This topic covers the compounds studied as sirtuin activators.
SENSenolytics
Senescent (‘zombie’) cells accumulate with age and release inflammatory signals. Senolytics are studied for clearing them, senomorphics for suppressing those signals. Most data are preclinical or early clinical.
AUTAutophagy
Autophagy is the cell's recycling system for damaged proteins and organelles. Declining autophagy is linked to aging in research. This topic covers compounds and conditions studied as autophagy inducers.
MITMitochondrial Support
Mitochondria produce cellular energy, and mitochondrial dysfunction is studied as a feature of aging. This topic covers compounds studied for mitochondrial function, efficiency and biogenesis.
HORHormesis
Hormesis is the principle that mild stress can trigger adaptive responses that strengthen biological systems. Cold, heat, fasting and exercise are studied as hormetic stressors, alongside some compounds.
What are research peptides?
What are peptides?
Peptides are short chains of amino acids — the same building blocks that make up proteins, just far shorter. Where a protein may consist of hundreds of amino acids, a peptide is typically 2 to 50. Because of that short length, many peptides work as signalling molecules that bind specific receptors — for example hormones that regulate appetite, growth hormone release or tissue repair — rather than acting broadly like many small-molecule drugs.
Peptides are not a fringe category. Insulin, the first peptide medicine, has been in clinical use since the 1920s, and peptide-based medicines have since been approved for diabetes and obesity (semaglutide, tirzepatide), osteoporosis (teriparatide, abaloparatide), HIV-associated lipodystrophy (tesamorelin, approved in the US) and other conditions.
The compounds in this encyclopedia are a different, earlier-stage group: most have only preclinical or early clinical data, are not approved as medicines in the EU, and are sold by vendors strictly for laboratory research, not for human use. A research vial sold by a vendor is not the licensed medicine, even where the same substance is approved as a drug elsewhere.
Not every entry is a peptide. The encyclopedia also covers small molecules (for example modafinil, edaravone and AICAR), the coenzyme NAD+ and larger protein-based compounds (for example follistatin and hCG), because researchers and vendors list them alongside peptides.
Types of research compounds
The compounds are grouped by what they target or how they are believed to act. The nine categories below match the category cards above.
Final thoughts
Peptides sit in a middle ground: small enough to be highly specific, large enough to do more than a typical pill. That is why the field moves fast, and why the gap between promising early research and an approved medicine matters so much. The guides above go compound by compound — what each one is studied for, where the EU legal line sits, and what to check on a Certificate of Analysis before trusting a vendor's claims. None of this is medical advice, and none of these compounds are intended for human or animal use outside an approved clinical context.