Doctor's Best

Doctor's Best L-Theanine with Suntheanine

90 vcaps - 150 mg

  • Sale
  • Regular price $20.00
  • SRP $29.99

UPC 753950001978

Product ID 9150


  • Doctor’s Best L-Theanine with Suntheanine® is an amino acid that promotes a relaxed state without drowsiness, eases stress and everyday tension, and promotes a positive mood and alertness.*

  • The formula uses L-Theanine with Suntheanine®, a patented form of the amino acid L-theanine.

  • L-theanine is an amino acid found in green tea that is responsible for the relaxation-inducing effect of tea consumption. *

  • L-Theanine with Suntheanine® may improve sleep quality, enhance mental acuity and soothe away tension and nervousness.*

  • Non-GMO/ Gluten Free / Soy Free/ Vegetarian / Vegan

Doctor’s Best L-Theanine with Suntheanine® is a patented form of the amino acid L-theanine. L-theanine is an amino acid found in green tea that is responsible for the relaxation-inducing effect of tea consumption. L-Theanine with Suntheanine® has been shown to promote an alert state of relaxation.* This is characterized by an increase in alpha brain waves (signifying a relaxed, alert state) and a decrease in beta brain waves (signifying an awake, excited state of mind). L-Theanine with Suntheanine® may improve sleep quality, enhance mental acuity and soothe away tension and nervousness.*

Doctor’s Best L-Theanine with Suntheanine® contains 100% Suntheanine®and is best known for its unique ability to promote relaxation without causing drowsiness.* L-theanine is one of green tea’s natural health-promoting compounds. It is the ingredient that is responsible for both the taste and the relaxing effects of green tea. Research shows that supplemental L-theanine crosses the blood-brain barrier within 30 minutes of intake and thus is able to exert its effects directly on the brain.*