Triacetyluridine (TAU) Powder

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Triacetyluridine (TAU), also known as uridine triacetate, is a nucleoside and precursor for uridine, a component of RNA. Triacetyluridine is one of the most bioavailable forms of uridine with important neurological properties. It has a molar mass of 370.31g/mol and the chemical formula C15H18N2O9.

Triacetyluridine (TAU) Benefits and Uses

Triacetyluridine (TAU) is a pyrimidine nucleoside, which is composed of the nucleotide uracil bound to a ribose sugar, and is a component of RNA (ribonucleic acid). RNA is the compound responsible for the translation of genes into proteins.

Triacetyluridine has perceived benefits on cognitive functions such as learning and memory. Although there are many available forms of dietary Uridine, Triacetyluridine appears to be the most bioavailable type and most regarded for its neuroprotective effects. Research suggests that supplementing with Triacetyluridine may boost mood, mental energy and have an overall neuroprotective effect.


Triacetyluridine supplements are also known by a few different names, including:

  • Uridine Triacetate
  • TAU
  • PN401
  • Vistogard
  • Xuriden
  • Vistonuridine
  • Uridine, 2’,3’,5’-triacetate
  • Tri-O-acetyluridine
  • Triacetyl uridine

Scientific Consensus

Studies show that using Triacetyluridine (TAU) within the recommended serving size is generally safe with only mild potential adverse effects. Anecdotal evidence has found TAU is most effective when stacked with other supplements such as choline. TAU may cause side effects such as nausea, headaches and upset stomach.

There isn’t sufficient data regarding the safety of Triacetyluridine for pregnant or breastfeeding women, or if it can be used by children. Please consult with your doctor before trying this product.

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The statements on this page have not been evaluated by the FDA. The products on this page are not intended to diagnose, treat, cure, or prevent any disease.
September 9, 2022
Adrian McMullan
Triacetyluridine (TAU) Powder

Great verbal fluency when using this product---watch the dosage---25-50mg will do it--great quality as usual from LiftMode. Thank you.

Serving size is 25 mg. Please start with the lowest effective serving size to assess your body's response.

Supplement Facts

Serving size: 25mg
Servings per container:
Amount per serving: % DV


LiftMode offers a variety of unit sizes of HPLC-tested Triacetyluridine (TAU) Powder, including a a 5g unit, a 20g unit and a 50g unit. Our Triacetyluridine (TAU) Powder is of the highest quality.
Store securely in a dry cool location away from direct sunlight. Keep out of reach of children and pets. Do not take this or any other supplement, and instead consult doctor about use, if you are under the age of 18, pregnant or breastfeeding, taking prescription or OTC / nonprescription drugs, or if you have any known or suspected medical conditions. Do not use if product safety seal was damaged or missing upon receipt.
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Scientifically Tailored Ingredients

Triacetyluridine is a naturally-occurring compound and precursor to the nucleoside Uridine (pictured to the left). Uridine plays an important role in cellular signaling, and supports both CDP-Choline and dopamine levels in the brain. For this reason, Triacetyluridine is becoming a sought after dietary supplement for its perceived effect in boosting cognitive function, memory and mood.

– Promotes Healthy Memory and Cognition
– Potent Neuroprotective Benefits
– Supports a Positive Mood

National Center for Biotechnology Information (2021). PubChem Compound Summary for CID 254731, 2′,3′,5′-Triacetyluridine. Retrieved December 9, 2021 from

Klivenyi, P., Gardian, G., Calingasan, N. Y., Yang, L., von Borstel, R., Saydoff, J., Browne, S. E., & Beal, M. F. (2004). Neuroprotective effects of oral administration of triacetyluridine against MPTP neurotoxicity. Neuromolecular medicine, 6(2-3), 87–92.

Weinberg, M. E., Roman, M. C., Jacob, P., Wen, M., Cheung, P., Walker, U. A., Mulligan, K., & Schambelan, M. (2011). Enhanced uridine bioavailability following administration of a triacetyluridine-rich nutritional supplement. PloS one, 6(2), e14709.