With so many Best L Theanine Brand brands on the market – from prominent names like Nature’s Trove,Nutricost,NOW Foods,Sports Research,NUTRAHARMONY,NOW to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.
We extensively tested and evaluated dozens of top-rated Best L Theanine Brand across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best L Theanine Brand to consider. Our top recommendation is Nature’s Trove Best L Theanine Brand for its uncompromising quality and performance.
Below you’ll discover more of our favorite Best L Theanine Brand picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best L Theanine Brand you’ll truly love.
Editor's Choice
L-Theanine 200mg by Nature's Trove - 120 Vegetarian Capsules
Premium Pick
Nutricost L-Theanine 200mg, 120 Capsules, Double Strength - Non-GMO, Gluten Free
Budget Pick
Integrative Therapeutics L-Theanine 200 mg - Suntheanine Brand L-Theanine - Promotes a Relaxed State
Top 10 Best L Theanine Brand
We researched and compared the top products in the Best L Theanine Brand category to provide you with these recommendations.
1. L-Theanine 200mg by Nature's Trove - 120 Vegetarian Capsules
- L-Theanine 200mg may promote relaxation without drowsiness. Also may restores a sense of calm.
- Found naturally in green tea
- Natural Ingredients - Good Health from the Source!
- Made in the USA - GMP NSF Certified Facility - Kosher Certified
- To SAVE EVEN MORE! Select our SUPER VALUE SIZE - 365 Vegetarian Capsules
2. Nutricost L-Theanine 200mg, 120 Capsules, Double Strength - Non-GMO, Gluten Free
- 120 Capsules of L-Theanine Per Bottle
- 200mg L-Theanine Per Serving (120 Servings)
- Easy To Take Capsules
- Non-GMO, Gluten Free
- Manufactured In a GMP Compliant, FDA Registered Facility
3. NOW Foods Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 60 Veg Capsules
- STRESS MANAGEMENT*/PROMOTES RELAXATION*: Promotes relaxation without the drowsiness or negative side effects associated with other calming agents.*
- HEALTHY VASCULAR FUNCTION*/WITH INOSITOL: Formulation includes inositol, a member of the B-vitamin family that is essential for brain and nervous system health.*
- CLASSIFICATIONS/CERTIFICATIONS: Vegan, Kosher, Non-GMO
- GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
- Packaged in the USA by a family owned and operated company since 1968.
4. Sports Research Double Strength ‘Suntheanine’ L-Theanine with Organic Coconut Oil - Promotes
- ALERT & CALM: L-Theanine is an amino acid commonly found in green tea and is believed to help with relaxation. Suntheanine is patented, researched, and clinically proven to promote an alert state of relaxation and focus without any accompanying drowsiness. Get focused so you feel ready to take on the day!
- PREMIUM QUALITY: Sports Research is proud to offer products using only the best ingredients available so that you can have total peace of mind in the supplements that you are taking. Our L-Theanine 200mg softgel capsules are certified non-GMO and free of soy, gluten, artificial colors, Hexane, Stearates, and Titanium Dioxide.
- Our products are made in cGMP compliant facilities in the United States, using only the best ingredients from domestic & international origins. For us, it's all about quality control - so you can have confidence in your dietary supplements.
- EASY TO USE: As a dietary supplement, simply take one (1) easy to swallow liquid softgel daily with or without food or as directed by your qualified healthcare professional. Promoting an increase in Alpha brain waves and a decrease in Beta brain waves, you'll find your spark and get the boost you need with none of the sugar or unwelcome side effects from energy drinks or energy supplements.
- THE SPORTS RESEARCH DIFFERENCE: Created in 1980, Sports Research is a privately-owned business born from a passion for fitness, wellness, and healing. Our goal is to help people live their best lives through real, research-backed ingredients created for every body inside and out. We're fully dedicated to sourcing the highest quality products from around the world, backed by third party testing. We all deserve the best in our quest for healthy living. Our mission is to give you just that.
5. L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation,
- L Theanine Supplement Dont stress & do your best! Sleep well with l theanine 400mg! Provides calming & relaxing effect on the body, supports good sleep, and the ability to deal with stress.
- Calm, Sleep & Relax L theanine works by encouraging brain-wave activity, which improves concentration by reducing distractions and promoting a more focused state of mind
- 100% Natural Source L Theanine effectively relaxes and relieves mental and physical tension. It has a natural ability to deal with nervousness and stress-related sleep problems. Found and made from the purest, highest quality green tea!
- Made in the USA L theanine from NUTRAHARMONY does not contain GMOs; it's dairy-free, gluten-free, nut-free, wheat-free, soy-free, nightshade-free, and sugar-free. L-theanine is a perfect addition to your gluten-free & vegan lifestyle with advanced support and significant effects
- Quality Matters NUTRAHARMONY ltheanine vitamin is an excellent and effortless choice for improving your health. If you want to share your experience or have questions about l- theanine, message us. Our support team works 24/7. Maintain your health anytime, anywhere with a ltheanine supplement!
6. NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 Veg Capsules
- STRESS MANAGEMENT*/PROMOTES RELAXATION*: Promotes relaxation without the drowsiness or negative side effects associated with other calming agents.*
- Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
- HEALTHY VASCULAR FUNCTION*/WITH INOSITOL: Formulation includes inositol, a member of the B-vitamin family that is essential for brain and nervous system health.*
- CLASSIFICATIONS/CERTIFICATIONS: Vegan, Kosher, Non-GMO
- GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
- Packaged in the USA by a family owned and operated company since 1968.
- During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
7. Integrative Therapeutics L-Theanine 200 mg - Suntheanine Brand L-Theanine - Promotes a Relaxed State
- L-Theanine is an amino acid that supports a relaxed state without diminishing daytime alertness*
- Suntheanine L-Theanine is an amino acid that helps support relaxation and a healthy stress response*
- Clinically studied, L-theanine can support a healthy stress response*
- Soy free, dairy free. No wheat, corn, or artificial colors, flavors, or preservatives
8. Nature Made Chewable L Theanine Supplement 200mg for Stress Relief, 50 Tablets, 50 Day Supply
- Stress support supplement: contains one 50 count bottle of Nature Made L Theanine 200mg Chewable Tablets for a 50-day supply
- Works within 30 minutes; L-Theanine helps relax the mind without drowsiness
- Fast-acting stress relief (1) in chewable tablets that have no color added, no dairy, and are gluten free
- 100% Drug Free and suitable for vegetarians
- Delicious tropical fruit flavor; Adults, chew 1 tablet per day as needed
- #1 Pharmacist Recommended Vitamin & Supplement Brand*; made in the USA with quality global ingredients
- These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease
9. L-Theanine 400mg | 400 Capsules | Value Size | High Potency | Non-GMO & Gluten Free | by Horbaach
- AMINO SUPPORT: L-Theanine is a naturally-occurring Amino Acid found in widely touted Green Tea
- DYNAMIC SUPPLEMENT: Contains 400 mg of L-Theanine per serving in convenient Quick-Release capsules
- PROFESSIONAL SOURCING: Our ingredients are carefully selected and tested to ensure strong purity
- HORBAACH MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
- NATURALLY FREE OF: Gluten, Wheat, Yeast, Milk, Lactose, Soy, Artificial Color & Flavoring & NON-GMO
10. Pure Encapsulations L-Theanine | Amino Acid Supplement for Relaxation and Wellness* | 60 Capsules
- Supports Relaxation: l-Theanine is a unique amino acid derived from green tea, which has been recognized for centuries as having relaxant properties and helps promote relaxation without causing drowsiness.*
- Support For Occasional Stress: I-Theanine may also ease occasional nervous tension and irritability and help moderate occasional stress.*
- Nervous System Support: l-Theanine has been reported to moderate the effects of caffeine on the central nervous system.*
- Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity.
- Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.
Peter
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