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L-Theanine is a natural amino acid found in green tea leaves and some mushrooms. It's commonly used in our products for its relaxation and stress-reducing properties and improvement of cognitive performance. 


  • Promotes calm and relaxation without drowsiness
  • Helps reduce stress and anxiety
  • May improve focus and cognitive performance
  • May improve sleep quality
  • May support a healthy immune system

+The statements made have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from health care practitioners. Please consult your health care professional about potential interactions or other possible complications before using any product.

Backed by Research:

L-Theanine has been studied extensively for its effects on relaxation and stress reduction. Below are some relevant studies:
  • L-Theanine Reduces Psychological and Physiological Stress Responses
  • The Effects of L-Theanine on Objective Sleep Quality in Boys with Attention Deficit Hyperactivity Disorder (ADHD): A Randomized, Double-Blind, Placebo-Controlled Clinical Trial
  • L-Theanine Administration Modulates the Absorption of Dietary Nutrients and Expression of Transporters and Receptors in the Intestinal Mucosa of Rats
  • The Combined Effects of L-Theanine and Caffeine on Cognitive Performance and Mood
  • The Anxiolytic Effect of Chronic Ingestion of L-Theanine in Rats Depends on the Presence of an Intact Olfactory Bulb and Basolateral Amygdala
At BeWell Market, we're committed to using ingredients that are backed by scientific research to provide real benefits to our customers.