Relax Without Drowsiness
Suntheanine® improves focus, attention, mental clarity and learning performance and improves sleep quality.*
Calm
Promotes an alert state of relaxation without drowsiness*
Focus
Improve focus without the negative side effects of caffeine*
Clarity
Enhance attention and concentration*
Purity
Clinically researched and patented pure form of L-theanine
100% Pure L-Isomer-theanine
Suntheanine® is produced via an enzymatic fermentation process that mimics the natural process in green tea leaves resulting in a 100% pure L-isomer-theanine.
Suntheanine® is protected by U.S. and International patents and is backed by more than 40 clinical studies.
What the Experts Say
Shawn Talbott, PhD
Psychonutritionist
Bryce Wylde, B.Sc. Hons. (BioPsyc), DHMHS
Alternative medicine expert
Shawn Talbott, PhD
Psychonutritionist
Bryce Wylde, B.Sc. Hons. (BioPsyc), DHMHS
Alternative medicine expert
A blog for those who want to know
Suntheanine helps you up your game! Now available in Spartan Nutrition products.
Suntheanine is proud to be a key ingredient in the Spartan Nutrition line, which is taking fitness to the next level, no matter what your starting point. Introduced earlier this year, Spartan Nutrition’s mission is to use clean ingredients to help you hydrate,...
Taiyo is reassuring Canadian customers that Suntheanine complies with Environment and Climate Change Canada’s New Substances Program
Suntheanine meets the stringent ecological and human health assessments. Generic theanine not in compliance is limited to 100 kilos per year. Taiyo International and its Canadian partner Mitsubishi International Food Canada want to raise awareness of long-standing...
How to get more sleep this summer
Longer summer days may be great for our social lives, but those extra hours of sunlight can disrupt our sleep/wake cycle. That’s because at dusk, the body releases melatonin to trigger sleepiness. When dusk doesn’t happen until late into the evening, we may have...
Suntheanine helps you up your game! Now available in Spartan Nutrition products.
Suntheanine is proud to be a key ingredient in the Spartan Nutrition line, which is taking fitness to the next level, no matter what your starting point. Introduced earlier this year, Spartan Nutrition’s mission is to use clean ingredients to help you hydrate,...
Taiyo is reassuring Canadian customers that Suntheanine complies with Environment and Climate Change Canada’s New Substances Program
Suntheanine meets the stringent ecological and human health assessments. Generic theanine not in compliance is limited to 100 kilos per year. Taiyo International and its Canadian partner Mitsubishi International Food Canada want to raise awareness of long-standing...
How to get more sleep this summer
Longer summer days may be great for our social lives, but those extra hours of sunlight can disrupt our sleep/wake cycle. That’s because at dusk, the body releases melatonin to trigger sleepiness. When dusk doesn’t happen until late into the evening, we may have...
Natural health expert is a huge Suntheanine proponent
Leading integrative and functional medicine expert Bryce Wylde, BSc, DHMHS, is popular for his ability to blend the latest in science and technology with traditional and ancient remedies. The author of multiple best-sellers recently appeared on the Joyous Health...