L-Theanine is an amino acid found in green tea that’s known for promoting relaxation without drowsiness. It's often used to ease anxiety, improve focus, and smooth out the effects of caffeine—making it a favorite among students and professionals.

L-Theanine boosts alpha brain waves, which are associated with a calm, alert state. It can also help reduce mental fatigue and improve sleep quality, especially when taken in the evening or combined with magnesium.

Many people take 100–200 mg of L-Theanine during the day for calm focus, or before bed for better rest. It’s safe, non-habit forming, and can even be stacked with caffeine for smoother energy.

Interested in trying it? Check natural suplements for the best L-Theanine supplements, reviews, and how-tos for a more peaceful, productive day.