US-based PureHealth Research has launched a single-ingredient supplement in the form of Matcha green tea capsules. 

According to the company, the capsules offer a “convenient” alternative to traditional matcha preparation. 

Each 1,000mg daily serving delivers whole-leaf matcha powder containing compounds such as L-theanine and catechins including EGCG (epigallocatechin-3-gallate), intended to support focus, clarity, and overall well-being.  

PureHealth Research stated that its matcha is sourced from Japanese tea gardens, where leaves are shade-grown to increase chlorophyll and L-theanine levels.  

Leaves are stone-ground to maintain quality and potency, and each batch undergoes third-party testing to verify purity and standards compliance, the group said.  

The product launch coincides with continuing research into matcha’s cognitive effects.  

A 12-month study, led by Kazuhiko Uchida, found that daily matcha intake improved social acuity—the ability to perceive facial emotions—in older adults with cognitive decline, alongside a trend towards improved sleep quality.  

“The present study suggests regular consumption of matcha could improve emotional perception and sleep quality in older adults with mild cognitive decline. Given the widespread availability and cultural acceptance of matcha green tea, incorporating it into the daily routine may offer a simple yet effective strategy for cognitive enhancement and dementia prevention,” according to the study posted on the US National Library of Medicine.  

PureHealth Research said the findings support its decision to use a pure, whole-leaf powder to optimise matcha’s potential cognitive and mood-related benefits. 

The company said that it produces its nutritional supplements in GMP-certified facilities in the US and bases its formulations on scientific evidence and independent testing. 

PureHealth Research CEO Giedrius Cekanskis said: “Many people are drawn to the incredible benefits of matcha but are intimidated by the traditional preparation or the inconsistent quality of powders. 

“We wanted to honour the integrity of this ritual while making it accessible for modern, busy lifestyles. Our capsule delivers the pure, whole-leaf matcha with absolute simplicity and consistency.”