It’s hard to know which is good l-theanine usa powder. There are alot of l-theanine usa powder reviews on internet. In this article we suggest top 18 the best l-theanine usa powder for you. Please read carefully and choose what is the best l-theanine usa powder for you.

Best l-theanine usa powder

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1. Suntheanine L-Theanine 200mg (Double-Strength) in Cold-Pressed Organic Coconut Oil; Non-GMO & Gluten Free - 60 Liquid Softgels

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PREMIUM: Features the Award Winning Ingredient Suntheanine, clinically proven to promote an alert state of relaxation without drowsiness, as indicated by an increase in Alpha brain waves *
COCONUT OIL: Formulated with Virgin Organic Coconut Oil
QUALITY: Non-GMO and formulated Without Hexane, Gluten, Soy, Artificial Colorings, Stearates Or Titanium Dioxide.*
FAST ACTING: The only L-Theanine encapsulated in fast-acting liquid softgel capsule.
90-Day Money-Back Guarantee: Your satisfaction means everything to our company. If you're not thrilled with our L-theanine simply return it to us for a refund (See below for details^).

2. Nutricost L-Theanine 200mg, 120 Capsules - Double Strength

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120 Capsules of 200mg L-Theanine Per Bottle
Double Strength
Easy To Take Capsules
Non-GMO, Gluten Free
Manufactured In a GMP Compliant, FDA Registered Facility

3. Magnesium L Threonate Capsules (Magtein) High Absorption Supplement Bioavailable Form for Sleep and Cognitive Function Support 2,000 mg 100 Capsules

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MADE IN THE USA AND TESTED TWO TIMES FOR PURITY AND SAFETY - Our High Absorption Magnesium L-Threonate Capsules are manufactured right here in the USA. Purity testing is available upon request.
HIGHLY BIOAVAILABLE FORM OF MAGNESIUM L-Theonate is a mineral chelating agent that is able to greatly enhance the bioavailability of magnesium making it highly absorbable.
PROMOTES MEMORY AND OVERALL COGNITIVE FUNCTION Research showed Magnesium L-Threonate promoted recall, age-related memory health, and promoted the creation of new neural pathways.
SUPPORTS SLEEP QUALITY - Magnesium is a natural muscle relaxer which can help calm the brain at bedtime. It may help support sleep quality and healthy sleep habits.

4. NutraBio L-Tyrosine Powder (150 Grams, 500mg Serving)

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ENERGY AND WEIGHT LOSS Tyrosine is an essential amino acid that can naturally support brain function, thyroid function, increase energy, and help with weight loss.
BOOST MENTAL ENERGY Tyrosine supplements may help increase dopamine levels and adrenal function, improving mood. Tyrosine is used for dopamine and norepinephrine production, which can be depleted by stress.
FIGHT STRESS AND ANXIETY Tyrosine helps the body produce hormones that are depleted by stress and studies have found that supplemented Tyrosine helps reduce perceptions of stress and may provide a feeling of well-being.
SUPERIOR QUALITY - NutraBio uses only the best, and this product is no exception. Our Tyrosine is non-GMO, gluten free, soy free, vegetarian, third-party tested, certified kosher, and made in the USA.
THIRD PARTY TESTED, FULL DISCLOSURE Like all NutraBio products, our Tyrosine is tested by an independent third party lab to ensure it is both pure and meets our strict quality standards. All NutraBio products feature fully transparent labels with no proprietary blends.

5. NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 Veg Capsules

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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.

6. SVASTHYA BODY & MIND Liquid L-Theanine - Natural Form of Stress Relief that Reduces Anexiety & Improves Concentration - Alcohol Free, Made In The USA, Suntheanine-GMP, 2 oz

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100% SAFE & NATURAL: a unique amino acid commonly found in green tea, provides a natural form of stress relief and is known to reduce anxiety and improve concentration. L-theanine naturally stimulates Alpha wave generation in the brain, to help you achieve an awake, alert and relaxed physical and mental state. In addition it increases dopamine and GABA levels, which leads to a feeling of happiness and well-being.
PUREST FORM: We only use Suntheanine, which is the purest form of L-Theanine, produced via a patented fermentation process that mimics the natural process in green tea leaves. Our liquid formula provides the optimal delivery method to get you feeling calm and peaceful as quick as possible! The primary reason for choosing a sublingual is to bypass the intestinal digestion phase allowing the maximum amount of the active ingredient to reach your bloodstream and disperse to your brain and nervous
MULTI-BENEFICIAL: Restores chemical balance in the body, alleviates depression, supports concentration and mental performance, helps focus attention on critical tasks, improves learning, protects the body from stress damage caused by the hormone cortisol, improves quality of sleep when taken 30 minutes before bed, protects the brain from damage done by glutamate and caffeine, supports the immune system by increasing the activity of T-cells,assists in weight loss by promoting thermogenesis & more
FAST ACTING: L-Theanine does not cause drowsiness or impair a person's motor skills and effects are usually experienced within 30 minutes of consumption. Our unique processing methods produce the highest quality and most potent liquid supplements available.
GMP: Good Manufacturing Practices - NO ARTIFICIAL SWEETENERS, NO ADDITIVES, NO FILLERS, NO BINDERS, NO ALCOHOL. PROUDLY MADE IN THE USA. .Our L-Theanine is ALCOHOL FREE, making it safe and effective for the whole family, including children and pets. **Always consult a physician before incorporating anything new into your child or pet's routine.**

7. L-Theanine 200mg by Nature's Trove - 120 Vegetarian Capsules

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L-Theanine 200mg promotes relaxation without drowsiness. Also 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

8. KAL L-Theanine Mag Glycinate ActivMix | Healthy Relaxation, Stress, Mood & Focus Support Drink Powder | Natural Tangerine Flavor | 7 oz | 50 Servings

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Quietly Calm: L-theanine, a free form amino acid, supports a healthy stress response
Sit Back & Relax: Magnesium glycinate supports healthy muscle function & relaxation
De-Stress Duo: Together, L-theanine & magnesium glycinate relax mind & body w/out drowsiness
ActivMix: Delicious tangerine flavor powder mixes with water or your favorite beverage
Customers Say: WOW! ...it does the trick

9. NOW Supplements, L-Theanine Pure Powder, Tension Management*, Amino Acid, 1-Ounce

Feature

Promotes Relaxation*
Healthy Vascular Function*
Take 1/8 level teaspoon daily in juice or water, preferably on an empty stomach
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

10. MAX Absorption Liquid L-Theanine Drops | All Natural, Vegan, Alcohol Free, Non-GMO | for Stress Relief, Relaxation, Focus Without Drowsiness | Synergistic with Coffee or Caffeine

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PROMOTES RELAXATION Studies show that L-Theanine may promote an alert state of relaxation without drowsiness. This can help to restore a sense of calm and help improve focus.
THE LIQUID ADVANTAGE Aside from being easier to consume, liquid drops can be easier and more gentle on the digestive system. The outer shell of a capsule is typically made with filler and there are excess, unnecessary ingredients used to make this. With our liquid supplements there are no fillers or excess ingredients used! Combining high quality ingredients, while removing the excess, and making it easier to consume is what we like to refer to as the Liquid Advantage.
PREMIUM QUALITY Each bottle is 60 servings and each serving contains 225mg of L-theanine. L-theanine is an all-natural antioxidant (found in green and black tea) which creates a calm feeling and helps promote relaxation.
NATURAL INGREDIENTS Non-GMO, vegan/vegetarian friendly. Natural lemon flavor. NO gluten, soy, sugar, milk, yeast, salt, or wheat. No unnecessary fillers are used.
TRY RISK FREE - Our L-theanine Liquid drops are made in the USA by an FDA inspected facility. Each bottle comes with a 90-day satisfaction guarantee. If youre not completely satisfied, feel free to return the bottle, no questions asked.

11. Caffeine 50mg & L-Theanine 100mg Pills for Smooth Energy, Focus, Clarity - 120 Veggie Capsules. Natural Cognitive Performance Stack for Focused Mind & Body. Smart Low Dose Boost No Jitters No Crash

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HEALTH, HAPPINESS, & PERFORMANCE - We started VALI because we want to know exactly whats inside our supplements and we want supplements that give real results without the marketing fluff other companies use to charge exorbitant prices. Nothing proprietary, clean highest quality ingredients at a great value, transparent formula, 3rd party testing for purity, and a commitment to above and beyond customer service. This is our promise to you! ALL our products come with a 100% money back guarantee.
SMOOTH ENERGY IN YOUR CONTROL - Caffeine and the amino acid L-Theanine work together synergistically to give you long lasting energy, concentration, attention, alertness, memory, and focus without the jittery feelings of a typical energy supplement. Our combination of 50mg caffeine + 100mg l-theanine per capsule lets you dose your nootropic intake for maximum brain boosting productivity. Why take 100 mg or 200 mg caffeinated capsules when you can energize with low dose 50 mg caffeine capsules?
CLEAN FORMULA & ZERO ADDITIVES - Simply a vegetarian capsule with 50 milligrams of energizing caffeine and 100 milligrams of stress reducing L Theanine. Take two capsules if you want 100mg caffeine and 200mg L-Theanine to get the extra strength dosage you need. Zero artificial flavors, additives, or preservatives. Free of banned and questionable substances. Gluten free. No soy, Vegan & Non-GMO ingredients. Proudly made in the USA in an eco friendly facility under the latest FDA cGMP guidelines.
STAY FOCUSED, CALM & ENERGIZED - Studied for years to provide the best cognitive function support for adult men and women while relaxing and calming the body, Caffeine & L-Theanine is the original best nootropic stack that helps you stay alert while working or studying, promotes endurance during workouts and exercise, and gives you the energy you need to get through the day or have fun at night without the jitters or caffeine crash from standard energy pills, chews, or tablets.
REPLACE UNHEALTHY DRINKS - Ditch the coffee and energy drinks or shots with sugar for a focused, smooth and healthier alternative thats zero calories. A natural and portable energy boost easy to take with you anywhere on the go and easier than a drink, liquid, or stick powder pack. Caffeine & L-Theanine tablets also help with weight loss if taken with proper diet and exercise, while giving you the health benefits of calm mental focus and smooth optimal peak performance energy for your mind.

12. L-Theanine 200mg - 180 Capsules (Non-GMO & Gluten Free) - L Theanine to Support Relaxation, Focus, Stress Relief & Sleep

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MAX STRENGTH L-THEANINE (NON-GMO): NusaPure Nutritions maximum strength L-Theanine supplement contains 200mg of L-Theanine per capsule, and 180 capsules in each bottle. Theanine is an Amino Acid that is found in plant species, most notably green and black tea leaves. Dont settle for other L-Theanine tablets or capsules that only offer 100mg or 150mg of L-Theanine per pill, or that only provide 60, 90 or 120 pills per bottle. *
FEEL THE DIFFERENCE: L-Theanine supports relaxation & stress relief, promotes healthy brain & cognitive function, and supports cardiovascular health. L-Theanine is a powerful antioxidant that supports improved sleep quality. Many people take L-Theanine with Caffeine, as L-Theanine may help reduce the side effects of Caffeine use. Some people take L Theanine to help lessen symptoms of anxiety and depression, but evidence of such benefits is incomplete. *
SUPPORTS BRAIN HEALTH: L-Theanine is a powerful Amino Acid that is derived from green & black tea. Many people take L-Theanine supplements to help reduce the negative effects of caffeine. L-Theanine is also taken to help with focus & cognition, promote stress relief and relaxation, may help decrease anxiety, and promote improved sleep quality. *
STILL NOT SURE? DONT WORRY! As a small family business, we fully understand the uncertainty and risk of trying new supplements. And this is why we go extra mile to source only the highest quality ingredients. Also, trust and transparency is at the forefront of our brand. We list every single ingredient on our products so that you can make an informative decision. Let us know if you have any questions or if can be of any service!
A BIT MORE INFO: L-Theanine (Gamma-glutamylethylamide) is a non-dietary Amino Acid similar to L-Ornithine. L-Theanine is structurally similar to Glutamine, as well as the neurotransmitter GABA. L Theanine can be taken in powder, capsule, pill, soft gel, tablet, chewable, gummy, liquid, drop or droplet form. *

13. L-Theanine 200mg by Double Wood Supplements Naturally Reduce Stress, Promote Relaxation and Quality Sleep Soy Free, Gluten Free, Non-GMO Third Party Tested and Made in The USA 120 Capsules

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THIRD PARTY TESTED AND MADE IN THE USA Our L Theanine capsules are third party tested and manufactured right here in the USA
PROMOTE RELAXATION L Theanine may help promote relaxation without causing sedation. Perfect for those that need to calm down while retaining a sharp mental edge.
REDUCES STRESS L-Theanine may help reduce stress, especially stress caused by other stimulants
PREVENTS SIDE EFFECTS FROM STIMULANTS L Theanine works alongside stimulants such as caffeine in order to reduce their side effects to make focusing and memorizing things easier.

14. L-Theanine 200mg (Double-Strength) with Passion Flower Herb - Reducing Stress and Promoting Relaxation Without Sedation - Non GMO, 120 Capsules

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LASTING CALMNESS - L Theanine is known for reducing stress and promoting relaxation without sedation.
SUPPORTS BRAIN HEALTH: L-Theanine is a powerful Amino Acid that is derived from green & black tea. Many people take L-Theanine supplements to help reduce the negative effects of caffeine. L-Theanine is also taken to help with focus & cognition, promote stress relief and relaxation, may help decrease anxiety, and promote improved sleep quality. *
HIGHEST QUALITY FORMULA: Best ingredients available. Manufactured at cGMP certified facility.
TRUSTED SINCE 1960: The pioneers of Bronson Vitamins were a group of pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients. Bronson Vitamins have been consistently mentioned by top medical professionals since our inception in 1960.
WORKS OR YOUR MONEY BACK: We back our products up with a 365-day hassle-free money back guarantee. There's no risk when you order now!

15. (3 Pack) 250MG L-THEANINE, Calming Alertness + Focus in Organic Flaxseed Oil, Non-GMO & Gluten Free, 150 Liquid Softgels, Natural Anti Stress & Calm L Theanine Pills

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*** 3 BOTTLES ***
ALERT STATE OF RELAXATION WITHOUT DROWSINESS - LTheanine is an Amino Acid derived from Green Tea that Enhances Mental Clarity & Focus, Helps Moderate Occasional Stress + Anxiety & Helps to Prevent Jitters Caused from Too Much Caffeine Consumption.
DON'T SETTLE FOR 200MG L-THEANINE POWDER CAPSULES - Advanced Formula Extra Strength 250mg L-Theanine Liquid Softgels Made With Organic Flaxseed Oil For Superior Absorption & Extra Brain Support.
NO BS (Bad Stuff): Corn, Eggs, Milk, Wheat, Peanut, Maltodextrin, Soy, Lactose, Carrageenan, Magnesium Stearate, or Dioxides.
SMARTERVITAMINS - We're creating the future of supplements, today.

16. 100% Pure L-Theanine, 365 Capsules, 1-Year Supply, No Magnesium or Rice Filler, 355mg per Serving, Made in The USA, Potent and Gluten-Free, Non-GMO, L-Theanine with No Additives

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PURE L-THEANINE CAPSULES Promote a State of Relaxation & Provide Relief from Occasional Stress
365 CAPSULES: 1-Year Supply. 3x More Than Any Other Top Seller. (Seriously, check out their labels)
NO STEARATES OR RICE FILLERS Unlike our Competition, We Dont Use Fillers
MADE IN THE USA by a Bunch of Health Fanatics in Utah. Non-GMO
LOVE IT OR ITS FREE! We offer a HASSLE-FREE, 100% MONEY BACK GUARANTEE. Buy & Try with confidence

17. EN L Theanine 400mg High Strength Vegan Capsules | 60 Capsules Made from L-Theanine Powder | Clean Fillers, Gluten Free and Non GMO | Made in The USA in GMP Licensed Facilities

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HIGH STRENGTH L-THEANINE - 1 capsule provides 400mg of Premium L Theanine, higher than most others on the market. Each capsule contains only L Theanine powder and Brown Rice Flour to act as a binder; theres absolutely no artificial ingredients.
MADE IN THE USA - We manufacture our products to the highest standards right here in the USA. The products are tested and manufactured in facilities which are GMP Certified and FDA Registered.
FOR BETTER FOCUS & CONCENTRATION - L Theanine helps to improve blood flow to the brain, in turn speeding up the clearance of toxins. This can help to reduce brain fog and promote mental clarity, great for keeping up productivity.
SUITABLE FOR VEGETARIANS AND VEGANS - Our L Theanine is suitable for Vegetarians, Vegans and does not contain gluten, dairy and it is non GMO.
OUR COMMITMENT TO MENTAL WELLBEING. Our directive is to provide each and every customer with the highest quality supplements, to benefit both cognitive and overall health. By purchasing, youre helping a worthy cause - a portion of each sale is donated directly to the Alzheimers Society. You have helped donate thousands date. Thank you.

18. GH L Theanine 400mg High Strength Vegan Capsules | 60 Capsules Made from L-Theanine Powder | Clean Fillers, Gluten Free and Non GMO | Made in The USA in GMP Licensed Facilties

Conclusion

By our suggestions above, we hope that you can found the best l-theanine usa powder for you. Please don't forget to share your experience by comment in this post. Thank you!
Elsie Butler