An evidence-first peptide reference
Straight-talk peptide reference for adults who read the studies.
What this is
Sourced from clinical trials. Not Reddit. Not supplier blogs.
Most peptide content online is either a hype-y supplier blog or forum anecdote dressed up as research. Neither tells you what the trials actually show — including the parts where the evidence is thin.
Every dosing range here cites a clinical trial, manufacturer protocol, or published guideline. Every mechanism description points back to primary literature. When the answer is "we don't really know," it says that.
The library
All 21 →The compounds people ask about most.
Retatrutide
aka LY3437943
Triple agonist (GLP-1 + GIP + Glucagon receptors)
Tirzepatide
aka Mounjaro, Zepbound
Dual agonist (GLP-1 + GIP)
Semaglutide
aka Ozempic, Wegovy, Rybelsus
GLP-1 agonist
BPC-157
aka Body Protection Compound 157, PL14736
Synthetic peptide (gastric protein fragment)
TB-500
aka Thymosin Beta-4 fragment
Synthetic peptide (Thymosin Beta-4 fragment)
GHK-Cu
aka Copper peptide, Copper tripeptide-1
Tripeptide-copper complex
Epitalon
aka Epithalon, Epithalamin
Tetrapeptide (Ala-Glu-Asp-Gly)
AOD-9604
aka HGH 176-191 modified
Modified GH fragment
Foundation
What's a peptide?
A short chain of amino acids — basically a tiny protein. Your body makes them all the time: insulin, oxytocin, growth hormone fragments. Synthetic peptides mimic or modify those natural signaling molecules.
Some are FDA-approved drugs (Wegovy, Mounjaro). Most others are research compounds with varying levels of evidence behind them.
AI assistance
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Trained on a curated peptide research corpus. Cites sources. Says when evidence is thin.
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