Research library
Evidence on 20 peptides, reviewed and dated.
Each peptide page covers mechanism, research history, trial status, and regulatory standing — citing primary sources and reviewed by a licensed clinician. We don't publish dosing, protocols, or "where to buy."
GLP-15
Semaglutide
FDA approveda.k.a. Ozempic, Wegovy, Rybelsus
The GLP-1 receptor agonist that rewrote obesity medicine.
Tirzepatide
FDA approveda.k.a. Mounjaro, Zepbound
Dual GIP/GLP-1 agonist delivering the deepest weight loss in any approved drug to date.
Retatrutide
Investigationala.k.a. LY-3437943
Triple GIP/GLP-1/glucagon agonist. 28.7% weight loss in Phase 2 trials.
Cagrilintide
Investigationala.k.a. AM833
Long-acting amylin analog designed to stack with semaglutide.
Orforglipron
Investigationala.k.a. LY-3502970
Small-molecule oral GLP-1 — no injection, no peptide supply chain.
Healing3
BPC-157
Research use onlya.k.a. Body Protection Compound, PL 14736
Gastric-derived peptide with heavy biohacker adoption and sparse human data.
TB-500
Research use onlya.k.a. Thymosin Beta-4 fragment, TB4
Synthetic fragment of thymosin beta-4. The other half of the 'Wolverine Stack.'
KPV
Research use onlya.k.a. Lys-Pro-Val
Tripeptide fragment of α-MSH with anti-inflammatory research interest.
Growth / GH5
CJC-1295
Research use onlya.k.a. Modified GRF (1-29), DAC
Long-acting GHRH analog, often stacked with ipamorelin.
Ipamorelin
Research use onlySelective GH-releasing peptide. The usual partner to CJC-1295.
Sermorelin
FDA approveda.k.a. GHRH 1-29
The first commercially available GHRH analog; still prescribed via compounding.
Tesamorelin
FDA approveda.k.a. Egrifta
FDA-approved GHRH analog with durable Phase 3 fat-loss data.
MK-677
Research use onlya.k.a. Ibutamoren, Nutrobal
Oral ghrelin mimetic. Non-peptide but routinely grouped with GH peptides.
Longevity4
GHK-Cu
Supplementa.k.a. Copper peptide, Glycyl-L-histidyl-L-lysine copper
Copper-binding tripeptide with skincare ubiquity and injectable research interest.
Epitalon
Research use onlya.k.a. Epithalon, Ala-Glu-Asp-Gly
Soviet-era tetrapeptide investigated for telomerase and circadian effects.
MOTS-c
Research use onlya.k.a. Mitochondrial-derived peptide
Mitochondrial-encoded peptide with emerging metabolic-health research.
Thymosin Alpha-1
Investigationala.k.a. Zadaxin
Immune-modulating peptide with global approval and ongoing US trials.