Triacetyluridine (TAU)
Also called TAU / PN401
Triacetyluridine is a lipophilic, acetylated derivative of uridine that resists breakdown in the gut and raises blood uridine more efficiently than uridine monophosphate. Its better oral bioavailability means smaller doses can be effective, but it is more expensive and less studied in humans.
Best for
Higher oral bioavailability at smaller doses
Absorption
High
Tolerability
Generally well tolerated; less human data
Typical timing
In the morning, often alongside DHA and a choline source
How to take Triacetyluridine (TAU)
A typical dose of Uridine: 150–300 mg of uridine monophosphate per day (often sublingual). Best timing: In the morning, often alongside DHA and a choline source. The form you choose mainly affects absorption and how easily it sits with your stomach, not the overall dose.
Where to buy Triacetyluridine (TAU)
Choose a third-party-tested brand; the label should name this form explicitly.
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