Free Tool

Rate your current nootropic stack.

Add the compounds you take today. We score each one against the Cognitive Performance Index rubric — 5 pillars, 10 cognitive domains, peer-reviewed evidence — then compute a stack composite with known synergies and overlap penalties applied.

Instant score. No gate. Email unlocks the personalized report.

Build your current stack

Add every nootropic, adaptogen, or stimulant you take on a typical day. Dose doesn't matter for v1 — we score compound-level effectiveness.

Tip: start typing to filter — arrow keys to navigate, Enter to add, Backspace to remove. Scored compounds come from the NootStack CPI benchmark.

Add at least one compound to get started.

Your stack CPI appears here live as you build.