The Book of Peptides
Interactive peptide reference

Be fully conscious of
what you're doing.

Every compound and stack in the series — researched from primary sources, adversarially fact-checked, and written up so the evidence is easy to actually understand.

83
Compounds
26
Stacks
25
Discovery stories
100%
Doses verified
What your membership unlocks

The whole reference, fully written up.

Every peptide, fully profiled

Evidence tier, community rating, safety notes, and stack pairings — one sourced reference page per compound.

All three books, online

Read the entire series in an interactive reader — or download the PDFs if you prefer paper.

Global newsletter

The latest peptide developments, organised by country, delivered as an ongoing membership perk.

Reconstitution reference

Every compound's published vial size, dilution, and draw worked out in full — a unit-math reference, not a personalized recommendation.

T2 · Clinical dataScore 86 · A

Retatrutide

LY3437943 · Metabolic & Fat-Loss

This is what every compound looks like inside — evidence tier, community rating, and the reconstitution math, all in one place. Full detail is part of membership.

Reconstitution · preview
Included with membership
The difference

The only peptide reference that throws claims out.

Every dose here survived an adversarial fact-check — a second pass built to refute it, not confirm it. Claims that traced to one uncorroborated source were deleted, not repeated. We publish the corrections.