Compound library / Cognitive / Nootropic

Paraxanthine

Primary metabolite of caffeine (the metabolite responsible for caffeine's effects per some researchers), explored as a cleaner alternative to caffeine with less cardiovascular stimulation and reduced adenosine rebound; also found naturally after coffee consumption.

CategoryCognitive / Nootropic
Typical routeOral
Half-life~3-5 hours
Common dose range100-200 mg as needed
Typical cycle lengthAs needed

BioHack Track models Paraxanthine at a half-life of 4 hours, so every dose you log is decayed against that curve and the app shows what is still circulating — not just what you typed.

Reconstitution

Oral capsule; no reconstitution needed.

Storage

Store at room temperature.

Cautions

Commercially available as a dietary supplement (e.g. enfinity brand). Limited direct human safety data relative to its parent caffeine; avoid combining with stimulants or other methylxanthines.

Track Paraxanthine in BioHack Track. Half-life, dose range and route come pre-filled from this library — log a dose and the app counts your vial down, models what is in your system, and puts it on the same chart as your labs and body composition.

Others in Cognitive / Nootropic

Look up the research

These open a search of each database for Paraxanthine — they are not citations, and nothing here is evidence for any particular dose. The same links are in the app.

Work it out