Version 2.0 formulas releasing soon · Single batch every time — every batch reformulated and matched to the latest scientific evidence · 166 evidence-based compounds across 30 products.Version 2.0 releasing soon · Single batch every time · 166 compounds across 30 products.
Formulas built the way I would build them for myself.
Tier 3 · mechanistic / traditional / early human
enfinity® paraxanthine
Acute crossover RCT (n=13, 200 mg): improved attention, reaction time, memory vs placebo; dose-response 50/100/200 mg; 7-day safety trial.
6/10evidence score
Ingenious Ingredients / TSIlicensed form owner
200 mgstudied dose used
What the evidence shows
Acute crossover RCT (n=13, 200 mg): improved attention, reaction time, memory vs placebo; dose-response 50/100/200 mg; 7-day safety trial.
Tier is our appraisal of the human evidence at the dose we use: Tier 1 = multiple randomized trials; Tier 2 = human trials, fewer or smaller; Tier 3 = mechanistic, traditional or early human data; Tier 4 = emerging. Ingredients below Tier 2 are included only where the safety record is long and the traditional use is specific.
Form and dose
Form used
1,7-dimethylxanthine ≥99%
Branded source
Ingenious Ingredients / TSI
Dose per serving
200 mg
Delivery
Standard / as studied
Who should be careful
Stimulant — kept as its own standalone formula; avoid late-day use; not with other stimulants. Talk with your clinician before starting if any of this applies to you.
Which NEX-GEN formulas contain enfinity® paraxanthine?
Focus Fuel (200 mg per serving). Every formula lists its full dose on the Supplement Facts panel — no proprietary blends.
What form of enfinity® paraxanthine does NEX-GEN use and why?
1,7-dimethylxanthine ≥99%. We use the licensed branded form so the dose on our label matches the material studied in the trials.
What does the evidence actually show for enfinity® paraxanthine?
Acute crossover RCT (n=13, 200 mg): improved attention, reaction time, memory vs placebo; dose-response 50/100/200 mg; 7-day safety trial.
Who should be careful with it?
Stimulant — kept as its own standalone formula; avoid late-day use; not with other stimulants. Talk with your clinician before starting if any of this applies to you.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Nothing on this site is medical advice — it is educational "what I would do if I were you" guidance from an executive health coach. Talk with your clinician before starting any supplement, especially if you take medication, are pregnant or nursing, or have a medical condition. Last reviewed October 2026.
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