Adding L-theanine to your morning coffee may help you feel focused without the jitters. Research suggests this amino acid found in green tea can balance caffeine’s stimulating effects, creating a calm ...

A recent study published in the British Journal of Nutrition provides evidence that a high-dose combination of L-theanine and ...

L-Theanine is a trending supplement that is being used to boost brain health by improving focus and aiding in relaxation. The ...

What’s even more exciting is emerging evidence that L-theanine may have antioxidant potential too. “It may function as a ...

This is what Taylor Swift's technique for a stress-free life looks like. L-theanine, an amino acid that is mainly found in tea leaves, is said to help with anxiety, but its benefits are far from ...

Sleep-deprived adults performed better on cognitive tests after taking certain amino acid supplements. Multiple 2025 studies ...