L-Theanine - 100 mg, 60 Capsules
L-Theanine is a unique amino acid naturally found in green tea providing 100 mg of Suntheanine® per capsule, traditionally used for centuries to promote relaxation without drowsiness. Research has shown that L-Theanine generates alpha brain waves associated with relaxed alertness within 30 minutes of oral administration, while also supporting the formation of GABA (the inhibitory neurotransmitter that influences dopamine and serotonin levels) to produce a key relaxation effect with additional benefits for cardiovascular, immune, and neurological health.
Key Benefits:
- Promotes Relaxation Without Drowsiness – Clinical studies demonstrate that 200 mg of L-Theanine generates alpha brain waves in the occipital and parietal regions of the brain with no adverse side effects, creating a state of relaxation and calm alertness without causing sedation or drowsiness.
- Supports GABA Production and Neurotransmitter Balance – Involved in the formation of gamma-aminobutyric acid (GABA), the primary inhibitory neurotransmitter that influences levels of dopamine and serotonin, producing the key relaxation effect and supporting balanced mood and stress response.
- Fast-Acting with Dose-Dependent Effects – L-Theanine reaches the brain within 30 minutes after oral administration, with research indicating that the amount of alpha waves generated is dose-dependent, allowing for flexible dosing (1-2 capsules) based on individual needs.
- Comprehensive Health Benefits Beyond Relaxation – Research suggests L-Theanine provides significant benefits for cardiovascular health, immune system function, and neurological health, making it a versatile supplement for overall wellness and stress management.
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Why New Beginnings?
Over 20 Years of Specialized Expertise
Since 2003, New Beginnings Nutritionals has been dedicated to providing specialized, professional-quality supplements for individuals and families navigating complex health challenges. Founded by Dr. William Shaw, Ph.D., a renowned biochemist and toxicologist, our company was born from groundbreaking research and a deep commitment to supporting those with autism, neuropsychiatric disorders, and chronic illness.
Science-Backed Formulations You Can Trust
Our products are developed through collaboration with leading physicians, naturopaths, researchers, and healthcare practitioners. Dr. Shaw's pioneering research—including over 32 published articles and books translated into 12 languages—informs every formula we create. This scientific foundation ensures that each supplement is purposefully designed to address real health needs with proven ingredients.
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What truly sets us apart is our commitment to education and customer care. Our knowledgeable team, led by co-founder Lori Knowles-Jimenez and consulting physician Dr. Kurt Woeller, D.O., provides personalized guidance to both practitioners and individuals. We offer educational webinars, evidence-based protocols, and hands-on support to help you navigate your health journey with confidence.
A Comprehensive Solution for Complex Needs
Our diverse product line addresses multiple aspects of health including:
- Digestive and gastrointestinal support
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- Special dietary requirements
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Whether you're a healthcare practitioner seeking reliable supplements for your patients or an individual committed to your wellness journey, New Beginnings Nutritionals provides the quality, expertise, and support you need. We're not just selling supplements—we're partnering with you to achieve optimal health through potent, pure, and efficacious nutrition.
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We offer free shipping on domestic orders over $129 — no code needed.
Most orders placed by 12:30 PM CST Monday–Friday ship the same day. Need it faster? Expedited options including UPS 2nd Day Air and Next Day Air are available at checkout so you can choose the speed that works best for you. International shipping is available via DHL to select countries.
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Not the right fit? Unopened products with the original seal intact may be returned within 60 days of purchase. Please note that probiotics, refrigerated items, and sale merchandise are non-returnable. A 10% restocking fee applies, and original shipping charges are non-refundable. Simply include a copy of your invoice with your return.
Damaged Items? Contact us right away with photos of the packaging and product, and we'll make it right.
For full details visit our Shipping and Return Policy.
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New Beginnings Nutritionals has been my ‘go-to’ supplement company for my patients for many years now. The main reasons are their high quality and diverse supplement products, but also their top-notch support staff who can assist with questions, ordering, etc. I highly recommend New Beginnings Nutritionals as supplement distribution company to work with.
Your products have been life changing for my child with a neurodevelopmental disorder. We have been consistently taking your supplements since October. My son has made so many positive changes in behavior, speech, and social skills. Thank you!
Your great supplements and caring staff give me a peace of mind every time I place an order. As a mom life, is always busy so being able to order high quality supplements from one place versus driving from store to store is a huge time-saver. Thank you New Beginning Nutritionals!
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