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With Suntheanine® Promotes RelaxationCertified Gluten-Free by The Gluten-Free Certification OrganizationNon-GMO & Hypoallergenic Dietary SupplementTheanine a unique amino acid is found in green tea and provides its characteristic taste. This L-Theanine supplement promotes relaxation without causing drowsiness and may ease occasional nervous tension and irritability. Theanine is also useful for supporting healthy cellular function.