20 Best L Theanine Now [2024]

Are you looking for the best l theanine now? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling l theanine now.

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1 NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 Veg Capsules NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 Veg Capsules
2 NOW Supplements, L-Theanine 100 mg with Decaf Green Tea, Stress Management*, 90 Veg Capsules NOW Supplements, L-Theanine 100 mg with Decaf Green Tea, Stress Management*, 90 Veg Capsules
3 NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 60 Veg Capsules NOW Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 60 Veg Capsules
4 Now Foods L-Theanine 200 Mg 60 Veg Caps Pack of 2 Now Foods L-Theanine 200 Mg 60 Veg Caps Pack of 2
5 NOW Supplements, L-Theanine Pure Powder, Tension Management*, Amino Acid, 1-Ounce NOW Supplements, L-Theanine Pure Powder, Tension Management*, Amino Acid, 1-Ounce
6 Now Foods, L-Theanine 200 Mg, Veg-Capsules, 60-Count (Pack of 2) Now Foods, L-Theanine 200 Mg, Veg-Capsules, 60-Count (Pack of 2)
7 NOW Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120... NOW Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120...
8 NOW Supplements, L-Theanine 100 mg with Inositol and Taurine, Tension Management*, 90 Chewables NOW Supplements, L-Theanine 100 mg with Inositol and Taurine, Tension Management*, 90 Chewables
9 Now Foods: L-Theanine Stress Management 200 mg, 60 vcaps (2 pack) Now Foods: L-Theanine Stress Management 200 mg, 60 vcaps (2 pack)
10 Now Foods: L-Tyrosine Neurotransmitter Support 750 mg, 90 Caps (2 pack) Now Foods: L-Tyrosine Neurotransmitter Support 750 mg, 90 Caps (2 pack)
11 Now Foods, L Theanine, 90 Veg Capsules Now Foods, L Theanine, 90 Veg Capsules
12 Zen Stress Relief Supplement - Premium Herbal Formula Supporting Calm Mood with Ashwagandha,... Zen Stress Relief Supplement - Premium Herbal Formula Supporting Calm Mood with Ashwagandha,...
13 NOW Supplements, Sleep Regimen 3-In-1, With Melatonin, 5-HTP and L-Theanine, Restful Sleep Blend*,... NOW Supplements, Sleep Regimen 3-In-1, With Melatonin, 5-HTP and L-Theanine, Restful Sleep...
14 Sports Research Double Strength ‘Suntheanine’ L-Theanine with Organic Coconut Oil - Promotes... Sports Research Double Strength ‘Suntheanine’ L-Theanine with Organic Coconut Oil - Promotes...
15 Nutricost L-Theanine 200mg, 120 Capsules, Double Strength - Non-GMO, Gluten Free Nutricost L-Theanine 200mg, 120 Capsules, Double Strength - Non-GMO, Gluten Free
16 L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules
17 Jarrow Formulas Theanine 200 mg, Neurologically Active Amino Acid, Found in Green Tea, Promotes... Jarrow Formulas Theanine 200 mg, Neurologically Active Amino Acid, Found in Green Tea, Promotes...
18 Stress-Relax Chewable Suntheanine L-Theanine 100 mg by Natural Factors, Non-Drowsy Stress Support... Stress-Relax Chewable Suntheanine L-Theanine 100 mg by Natural Factors, Non-Drowsy Stress Support...
19 Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules Ultra-Absorbable Magnesium -... Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules Ultra-Absorbable Magnesium...
20 Doctor's Best L-Theanine Contains Suntheanine, Helps Reduce Stress & Sleep, Non-GMO, Gluten Free,... Doctor's Best L-Theanine Contains Suntheanine, Helps Reduce Stress & Sleep, Non-GMO, Gluten Free,...
Bestseller No. 1
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...
  • HEALTHY VASCULAR FUNCTION*/WITH INOSITOL: Formulation includes inositol, a member of the B-vitamin family that is essential for brain and nervous...
  • 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...
Bestseller No. 2
NOW Supplements, L-Theanine 100 mg with Decaf Green Tea, Stress Management*, 90 Veg Capsules
  • STRESS MANAGEMENT*/PROMOTES RELAXATION*: L-Theanine promotes relaxation while maintaining alertness and promotes healthy cognitive function.*
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product...
  • HEALTHY VASCULAR FUNCTION*/WITH DECAF GREEN TEA: L-Theanine may also support healthy vascular function through this relaxing effect.* It is a unique...
  • CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Dairy Free, Egg Free, Made without Gluten, Nut Free, Soy Free, Vegan/Vegetarian
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our...
SaleBestseller No. 3
NOW 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...
  • 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...
  • Packaged in the USA by a family owned and operated company since 1968.
Bestseller No. 4
Now Foods L-Theanine 200 Mg 60 Veg Caps Pack of 2
  • 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...
  • 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...
  • Packaged in the USA by a family owned and operated company since 1968.
Bestseller No. 5
NOW Supplements, L-Theanine Pure Powder, Tension Management*, Amino Acid, 1-Ounce
  • 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...
  • Packaged in the USA by a family owned and operated company since 1968
SaleBestseller No. 7
NOW Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120...
  • SUPPORTS MENTAL ALERTNESS/NEUROTRANSMITTER SUPPORT: Required for the production of the neurotransmitters dopamine, adrenaline, and noradrenaline, as...
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product...
  • PHARMACEUTICAL GRADE/HEALTHY GLANDULAR FUNCTION: L-Tyrosine is especially critical for the normal function of the thyroid gland.
  • CERTIFICATIONS/CLASSIFICATIONS: Dairy free, Egg free, made without gluten, Non-GMO, nut free, soy free
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the now manufacturing process has been examined, including our...
Bestseller No. 8
NOW Supplements, L-Theanine 100 mg with Inositol and Taurine, Tension Management*, 90 Chewables
  • Promotes Relaxation*
  • Healthy Vascular Function*
  • With Inositol and Taurine
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our...
  • Packaged in the USA by a family owned and operated company since 1968
SaleBestseller No. 10
Now Foods: L-Tyrosine Neurotransmitter Support 750 mg, 90 Caps (2 pack)
  • 90 Capsules
  • Serving Size: 1 Capsule
  • 90 Servings Per Container
SaleBestseller No. 11
Now Foods, L Theanine, 90 Veg Capsules
  • DOUBLE VALUE PACK! You are buying TWO of Now Foods L-Theanine, 90 caps L-Theanine is an amino acid naturally found in green tea that promotes...
  • L-Theanine also supports healthy cardiovascular function through this relaxing effect as well as its antioxidant properties.
  • Now Foods L-Theanine, 90 caps
Bestseller No. 12
Zen Stress Relief Supplement - Premium Herbal Formula Supporting Calm Mood with Ashwagandha,...
  • Occasional Stress Support: Do you get overwhelmed by daily stressors? We know the feeling, which is why we created our premium Zen formula. It's...
  • Stay Focused and Calm: You deserve to live a happy, healthy life. That's why we combine superfoods like Passionflower and Niacinamide powder with...
  • Vitamins for Men and Women: Zen's vitamin supplement is a vegan daily multivitamin for women and men who want to help improve their mood. We use...
  • Herbal Ingredients: WellPath Zen's calming vitamin for men & women feature Ashwagandha, an Ayurvedic herb known to assist with balancing occasional...
  • A Safe Brand You Can Trust: National publications recommend WellPath as a highly trusted provider of premium wellness supplements. Zen multi vitamins...
SaleBestseller No. 13
NOW Supplements, Sleep Regimen 3-In-1, With Melatonin, 5-HTP and L-Theanine, Restful Sleep Blend*,...
  • Natural color variation may occur in this product
  • Promotes relaxation
  • With Melatonin & 5-HTP
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when...
SaleBestseller No. 14
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,...
  • 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...
  • Our products are made in cGMP compliant facilities in the United States, using only the best ingredients from domestic & international origins. For...
  • 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...
  • THE SPORTS RESEARCH DIFFERENCE: Created in 1980, Sports Research is a privately-owned business born from a passion for fitness, wellness, and healing....
Bestseller No. 15
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
SaleBestseller No. 16
L-Theanine 200mg Super Value Size - 365 Vegetarian Capsules
  • SUPER VALUE SIZE - 365 Vegetarian Capsules
  • L-Theanine 200mg may promote relaxation without drowsiness - May restore 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
SaleBestseller No. 17
Jarrow Formulas Theanine 200 mg, Neurologically Active Amino Acid, Found in Green Tea, Promotes...
  • Neurologically Active Amino Acid: Theanine is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain...
  • Relaxation and Pleasure: Theanine induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves; Theanine may...
  • Veggie Caps: Take one veggie capsule per day with water or juice on an empty stomach or as directed by your qualified healthcare professional; This...
  • Superior Nutrition and Formulation: The goal of Jarrow Formulas is to promote optimal health with high-quality, effective, affordable, and superior...
Bestseller No. 18
Stress-Relax Chewable Suntheanine L-Theanine 100 mg by Natural Factors, Non-Drowsy Stress Support...
  • Non-drowsy peace of mind: Feel calm and stay sharp with help from 100 mg of natural L-theanine in a delicious chewable; Fast-acting support for...
  • Calm and focused: Promotes calmness and helps stimulate an overall sense of relaxation; Perfect for working through daytime stress and relaxing at...
  • Natural ingredients: Suntheanine is a pure source of L-Theanine, an amino acid found in green tea and processed for maximum calming effects
  • Two tablets: Take up to 3 times daily; Vegan, non-GMO, non-habit forming and free of gluten and soy; Tropical flavored
  • Third-party certified: Independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity...
SaleBestseller No. 19
Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules Ultra-Absorbable Magnesium -...
  • MEMORY, FOCUS & COGNITIVE BOOST - Magnesium is essential for overall brain performance, but not all magnesium supplements are easy to absorb. Based on...
  • MAINTAIN IDEAL MAGNESIUM LEVELS - Magnesium does wonders for your brain, but it’s also important to more than 300 biochemical reactions in your...
  • MAGNESIUM L-THREONATE HELPS YOUR BRAIN WORK BETTER - Your daily activities demand focus and attention. Still, over time, the little details can slip...
  • INGREDIENTS MATTER - Sourced using only the finest raw ingredients with the purity and potency your body deserves. The majority of our products are...
  • LIVE YOUR HEALTHIEST LIFE - For over 40 years, we’ve been developing advanced, effective formulas made with the highest standards and based on the...
Bestseller No. 20
Doctor's Best L-Theanine Contains Suntheanine, Helps Reduce Stress & Sleep, Non-GMO, Gluten Free,...
  • Doctor’s Best L-Theanine contains Suntheanine, a pure form of L-Theanine on the market produced via a patented process that mimics the natural...
  • CALMNESS – L-Theanine supports relaxation and a sense of calm without causing drowsiness or loss of focus. This amino acid found naturally in tea...
  • SUPPORTS BRAIN HEALTH - L-Theanine is a powerful Amino Acid that enhances cognitive performance and alertness. L-Theanine may help improve quality of...
  • SUNTHEANINE - L-theanine is an agent that is used for nervousness and tension by supporting mental tranquility. Suntheanine may normalize the body’s...
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when...

Having trouble finding a great l theanine now?

This problem is well understood by us because we have gone through the entire l theanine now research process ourselves, which is why we have put together a comprehensive list of the best l theanine nows available in the market today.

After hours of searching and using all the models on the market, we have found the best l theanine now for 2023. See our ranking below!

How Do You Buy The Best L Theanine Now?

Do you get stressed out thinking about shopping for a great l theanine now? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching l theanine now, which is why we have assembled a comprehensive list of the greatest l theanine now available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for l theanine now that you consider buying. Your questions might include the following:

  • Is it worth buying an l theanine now?
  • What benefits are there with buying an l theanine now?
  • What factors deserve consideration when shopping for an effective l theanine now?
  • Why is it crucial to invest in any l theanine now, much less the best one?
  • Which l theanine now are good in the current market?
  • Where can you find information like this about l theanine now?

We’re convinced that you likely have far more questions than just these regarding l theanine now, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for l theanine now, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible l theanine now. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an l theanine now buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available l theanine now currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of l theanine now has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an l theanine now?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your l theanine now.
  5. Customer Ratings: Number ratings grade l theanine now objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their l theanine now.
  7. Product Quality: You don’t always get what you pay for with an l theanine now, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an l theanine now is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining l theanine now information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding l theanine now is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Can You overdose on L theanine?

A: There have been no reports of overdose or side effects of taking l theanine and drinking tea is generally safe for most people. By stimulating the production of more gaba as well as other important neurochemicals such as dopamine serotonin and norepinephrine l theanine steers the mind to naturally reduce anxious feelings and stress.

Q: Does L theanine work immediately?

A: The first thing I recommend you do if you want to make l theanine work faster is to take it on an empty stomach. Since the supplement has to travel through your stomach in order to be absorbed, it of course helps to not have anything in there. Now, this may not be the most practical tip if you want to take theanine for sudden anxiety attacks.

Q: What are the dangers of theanine?

A: – nausea – upset stomach – irritability

Q: When to take theanine serene?

A: Theanine Serene with Relora features powerful combinations of herbal extracts known to alleviate mild anxiety and stress naturally It can help the body to become resilient to stress while controlling certain hormones in the body to not over react thus calming the central nervous system Affordable than most natural anti-stress supplements