Types of Paraxanthine: Forms & Bioavailability

SupplementScience.ai Editorial Team·Evidence-Based Supplement Research

Published Mar 10, 2026

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Forms Comparison

Form	Bioavailability	Best For
Paraxanthine Capsules	High	Precise dosing — standard capsules containing 100-200mg of pure paraxanthine
Paraxanthine Powder	High	Flexible dosing — can be added to pre-workout or nootropic stacks for customized blends

Paraxanthine Capsules

Bioavailability: High. Best for: Precise dosing — standard capsules containing 100-200mg of pure paraxanthine.

Paraxanthine Powder

Bioavailability: High. Best for: Flexible dosing — can be added to pre-workout or nootropic stacks for customized blends.

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References

Yoo C, Xing D, Gonzalez D, et al. (2023). Acute paraxanthine ingestion improves cognition and short-term memory and helps sustain attention in a double-blind, placebo-controlled, crossover trial. Nutrients. DOI PubMed
Xing D, Yoo C, Gonzalez D, et al. (2021). Dose-response of paraxanthine on cognitive function: a double-blind, placebo-controlled, crossover trial. Nutrients. DOI PubMed
Arnaud MJ (2011). Pharmacokinetics and metabolism of natural methylxanthines in animal and man. Handbook of Experimental Pharmacology. DOI PubMed