PRICINGThe library is free. Reading your own stack is what you pay for.All 124 compounds, every evidence grade and every source stay open at both tiers. Pro is for when the form has to weigh your compounds against each other.
FREE
$0forever
The whole reference library, one compound of your own resolved on the form.
The full library — all 58 compounds, browsable, with every evidence grade and the taxonomy behind it
Reconstitution arithmetic, with the working shown
Cautions, contraindications and documented interactions
Dose log and injection-site record
One resolved compound — its edges still draw out to everything adjacent
Weighing compounds against each other
Bloodwork, cycle planning and Cortex answers
PRO
$14.99per month
FREE FOR ONE MONTH, THEN $14.99 MONTHLY · CANCEL ANY TIMEEvery compound resolved, weighed against each other, and read against your bloodwork.
No card charged for a month. Cancel before it ends and you pay nothing — your stack stays, it just goes back to one resolved compound.
Every compound in your stack resolved, with no limit
Supply tension across the whole stack — what runs out, and when against your cycle
Bloodwork attach: markers re-tune the form against your real values
Cycle planning, washout windows and adherence
Cortex answers that synthesise across your stack, not one compound at a time
Rotation history and next-site suggestion
Export a plain record to take to your physician
WHAT ONE COMPOUND ACTUALLY SHOWS YOUA single compound is not a single dot.Free resolves one of your compounds — but the form still draws every relationship that compound has, out into the ones you have not unlocked. You can see what sits adjacent to what you take, and where the tension would form, before you pay anything.SOLID = RESOLVED · DASHED = YOURS, LOCKED · FAINT = NOT YOURS
NEVER BEHIND THE PAYWALLAnything that could hurt you if you got it wrong is free.Reconstitution arithmetic, cautions, contraindications and documented interactions stay readable at every tier, including for compounds your plan has not resolved. We will not put a dosing calculation behind a card form.
Why only one compound on Free?+
Because a trial that expires would have been the easy answer, and we wanted Free to still be worth opening after one ended. One resolved compound still draws every relationship it has out into the ones you have not unlocked, so Free is not a crippled version of the map — it is the map, with most of it dimmed. The Pro trial sits on top of that: a month with everything resolved, after which Free is still there rather than a locked door.
What happens to my data if I stop paying?+
Is any safety information behind the paywall?+
Does Cortex tell me what to take?+
Can I cancel whenever?+
Start with one compound. The form will show you the rest of the shape.CREATE YOUR FIELD →
EDUCATIONAL RESEARCH REFERENCE · ADULTS 18+ · CORTEX DESCRIBES HOW COMPOUNDS ARE STUDIED; IT DOES NOT DIAGNOSE, TREAT OR PRESCRIBE · REVIEW EVERYTHING WITH A LICENSED PHYSICIAN