331 compounds · 19 classes
Everything about peptides,
without the guesswork.
Most people running peptides are working off a forum post and a screenshot. This is the reference that should have existed instead: the full compound library, calculators that show you the exact units to draw, illustrated injection guidance, and an AI grounded in all of it.
- 331
- compounds
- 19
- classes
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Every peptide, documented properly
Mechanism, half-life, real dose ranges, storage, side effects, interactions, and an honest evidence tier on every single one.
Browse the indexMath that shows you the syringe
Reconstitution and vial longevity, with the exact units drawn onto a live syringe and a warning when the dose you want does not land on a mark. Every number computed in code, never by a language model.
Open the calculatorsInjection guidance you can actually see
Interactive body maps for subcutaneous and intramuscular sites, tissue cross-sections showing 45° versus 90°, and a ten-step technique walkthrough.
See the guideAn AI that knows the space
Grounded in the reference above, so it cites the record it answered from. It talks like someone who has actually done this — and it never invents a dose.
Start askingHow this is built
The AI never does arithmetic
Every dose is computed by a unit-tested function, not generated by a language model. The AI is handed the result and explains it. One plausible-looking wrong number is a real dosing error, so we removed the possibility rather than hoping.
Only what you asked us to keep
An account is optional and exists only so your protocols, injection log and vial inventory survive a cleared browser. If you make one we store your email, a hashed password and that data — nothing else, and never sold or shared. The encyclopedia, calculators and injection guide need no account at all, and if you use them signed out we keep nothing.
Evidence tiers, stated plainly
Semaglutide has phase-3 human trials. BPC-157 has rat studies and a lot of confident forum posts. Both are here, and each page says which is which instead of flattening them into the same voice.