Understand peptides
before you
ever use one.
Trusted by researchers, biohackers & health-focused readers
34+
Peptide profiles covered
180+
Peer-reviewed studies cited
12k+
Monthly readers
100%
Free to access
What's inside
Every guide you need — none of the speculation.
We translate dense research papers into clear, accurate summaries with protocols, mechanisms, and legal context.
Mechanism deep-dives
Understand exactly how each peptide works at the cellular level — receptor binding, half-lives, downstream effects — not just "what it does."
Protocol reference sheets
Dosing windows, administration routes, and cycling patterns drawn directly from human trial data — not bro-science forum posts.
Legal & regulatory context
Clear breakdowns of research-use status, prescription landscapes, and grey-area realities — jurisdiction by jurisdiction.
Side effect & safety profiles
Honest reporting on observed adverse events, contraindications, and drug interactions across available clinical data — including what's still unknown.
Sourced from primary literature
Every claim links to its PubMed source. No anonymous anecdotes. No "experts say." Read the study yourself in one click.
Continuously updated
New trials publish weekly. We track them and update our guides when the evidence shifts — so you're never reading yesterday's consensus.
How to use this site
From curious to informed in three steps
Pick your peptide
Browse our A–Z index or search by goal — healing, body composition, cognition, longevity. Find the peptide relevant to you.
Read the full profile
Each guide covers mechanism, human trial results, protocols, safety signals, and legal status — everything in one place, no paywalls.
Talk to your doctor
Bring real data to your next consultation. Our guides are designed to make you a better-informed patient, not replace medical advice.
Popular guides
Start with the most researched peptides
BPC-157
Body Protective Compound with strong evidence for tendon, gut, and nerve repair in animal models.
14 studies reviewed
TB-500
Synthetic Thymosin Beta-4 fragment with proven angiogenic and anti-inflammatory properties.
11 studies reviewed
Semaglutide
GLP-1 receptor agonist approved for T2D and obesity — the most-discussed peptide of the decade.
22 studies reviewed
CJC-1295
GHRH analogue that sustainably elevates growth hormone and IGF-1 — popular for body composition and sleep.
9 studies reviewed
Stop googling. Start reading science.
Our free library gives you research-grade peptide knowledge — no subscription, no login, no gatekeeping.
Open the research libraryFree forever. No account required.