L-Theanine Extract
L-Theanine is an amino acid derived from young tea leaves. According to research by Jackson Williams and colleagues, L-Theanine helps the brain release more alpha brain waves (Alpha Brain Wave), increases GABA levels in the brain, and reduces beta brain wave activity. This helps promote relaxation, reduce stress, improve concentration, and enhance sleep quality, allowing for deeper and longer sleep.
Taking L-Theanine provides the body with L-Theanine amino acids directly and in a higher amount compared to drinking regular tea, which typically provides approximately 25-60 milligrams of L-Theanine.
Experimental results showed that when L-Theanine and a placebo were administered to groups with high and low anxiety levels, the results clearly demonstrated significant changes in the high-anxiety group. Treatment with L-Theanine showed a high response rate of 56.6%. After 60 minutes of taking L-Theanine, concentration was significantly improved.