The 29 best l theanine brands
Nutricost, NOW Foods and Nature’s Bounty lead our ranking of 29 l theanine brands. Compare what each brand makes, visit its official site, or shop it online.
L Theanine brands, ranked
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1
Nutricost
Bulk powder and high-count capsules at 200 mg or 400 mg make this a value pick for daily use.
Top products: L-Theanine 200mg· Pure L-Theanine Powder· Caffeine with L-Theanine
Website: nutricost.com |Brands like Nutricost
Popularity 10.0/10
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2
NOW Foods
Plain double-strength 200 mg vegetarian capsules, a no-frills option for shoppers who want just theanine.
Top products: L-Theanine Double Strength 200 mg
Website: nowfoods.com |Brands like NOW Foods
Popularity 8.9/10
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3
Nature’s Bounty
Multi-ingredient stress blends, such as its ashwagandha and theanine pairing, suit people wanting more than theanine alone.
Top products: Anxiety & Stress Relief Ashwagandha KSM 66
Website: naturesbounty.com |Brands like Nature’s Bounty
Popularity 8.4/10
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4
Onnit
Cognitive stack formulas like Alpha Brain add theanine alongside other nootropic ingredients for focus-driven users.
Top products: Alpha Brain
Website: onnit.com |Brands like Onnit
Popularity 8.1/10
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5
Irwin Naturals
Stress-focused softgels and liquids, often blended with other calming herbs rather than theanine alone.
Top products: Stress-Defy
Website: irwinnaturals.com |Brands like Irwin Naturals
Popularity 7.6/10
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6
Natural Factors
Suntheanine-based Stress-Relax capsules at 125 mg, a branded theanine form with a research base.
Top products: Stress-Relax Suntheanine L-Theanine 125 mg
Website: naturalfactors.com |Brands like Natural Factors
Popularity 6.3/10
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7
Natural Vitality
Natural Vitality is not in the industry to compete. They aim to bring a new level of healthcare to the world. They believe that every kind of health detriment begins with overstressing being the root of the issue. All of their products are premium and efficacious, ensuring their quality and credibility regarding your health concerns. Natural Vitality began in 2007 and has been working since then to provide quality healthcare.
Website: naturalvitality.com |Brands like Natural Vitality
Popularity 6.2/10
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8
GNC
Retail-chain availability and 200 mg capsules sold for stress and relaxation, easy to pick up in store.
Top products: L-Theanine 200mg Stress & Relaxation
Website: gnc.com |Brands like GNC
Popularity 6.2/10
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9
Force Factor
Trial-size 60-count bottle from the Alpha Brain makers, so you can test theanine before committing to a larger supply.
Top products: L Theanine 200mg
Website: forcefactor.com |Brands like Force Factor
Popularity 6.2/10
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10
Nature Made
Chewable 200 mg tablets with a stress relief focus from a long-running mainstream vitamin brand.
Top products: Chewable L Theanine 200mg
Website: naturemade.com |Brands like Nature Made
Popularity 6.1/10
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11
Sports Research
Dairy-free, egg-free softgels using Suntheanine, with options that add caffeine or a sleep blend.
Top products: L-theanine 200 mg· L-Theanine & Caffeine· Sleep Complex
Website: sportsresearch.com |Brands like Sports Research
Popularity 5.4/10
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12
Life Extension
Vegetarian 200 mg capsules with a mood-support angle, from a company focused on longevity research.
Top products: L-Theanine 200 mg
Website: lifeextension.com |Brands like Life Extension
Popularity 5.4/10
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13
Source Naturals
Source Naturals began in 1982 and makes supplements in tablet and powder form. Its salt tablets, amino acid tablets and powders support daily health needs, and the brand has created several award-winning formulas over the years.
Website: sourcenaturals.com |Brands like Source Naturals
Popularity 4.9/10
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14
Hyland's
In 1903 Hyland's was founded in Los Angeles as Standard Homeopathic Pharmacy. George H. Hyland purchased it in 1910, and the name was changed to Standard Homeopathic Company. In 1990, Hyland's began selling products in Canada. Their products include "Restful...
Website: hylands.com |Brands like Hyland's
Popularity 4.5/10
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15
Natrol
Natrol, a nutritional supplement company based in Westlake Village, California, focuses on melatonin tablets, vitamin B12 and vitamin D supplements. The brand was created by nutrition pioneer Robert L. Johnson more than 30 years ago. Its tablets are made to...
Website: natrol.com |Brands like Natrol
Popularity 4.1/10
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16
New Chapter
Women looking for vitamins without artificial fillers will find multivitamins and vitamin B12 from New Chapter. The Vermont-founded brand makes vegan vitamins using non-GMO ingredients.
Website: newchapter.com |Brands like New Chapter
Popularity 4.1/10
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17
Nature’s Way
Nature’s Way provides customers with supplements created only from natural ingredients. They believe in giving people what they are meant to have to ensure their wellness does not get compromised at any stage. Their passion for health has enabled them...
Website: naturesway.com |Brands like Nature’s Way
Popularity 3.9/10
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18
Solaray
Green tea and lemon-lime chewable versions give theanine a flavoured option alongside standard capsules.
Top products: L-Theanine 200mg + Green Tea· L-Theanine Chewables 200mg
Website: solaray.com |Brands like Solaray
Popularity 3.9/10
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19
Doctor's Best
Doctor’s Best brings you medically tested and proven health supplements and science-based nutrients. Their best sellers include the Beauty and Wellness collection and the Immune and Bone Support series. Doctor’s Best MSM products are available in powder and capsule forms,...
Website: doctorsbest.com |Brands like Doctor's Best
Popularity 3.3/10
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20
EVL
EVL aims to be a leader in the nutrition and fitness industry. The company offers nutrition supplements and fitness gear to safely enhance consumers' performance and results. EVL is committed to building a long-lasting relationship with its customers by providing...
Website: evlnutrition.com |Brands like EVL
Popularity 3.3/10
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21
Hyleys
Hyleys produces herbal teas sold in green tea, slim tea and fruit-based blends such as pomegranate and acai berry. The teas are sold in several flavors and are marketed for everyday refreshment and weight management routines. The brand sells through...
Website: hyleysteaonline.com |Brands like Hyleys
Popularity 3.3/10
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22
Zahler
Zahler was founded by Rachel Zahler. Zahler provides nutritional solutions to your everyday health issues. The company formulates health supplements to make life a little bit healthier. They have a team of scientists and nutritionists who work meticulously to create...
Website: zahlers.com |Brands like Zahler
Popularity 3.0/10
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23
Solgar
Solgar has been dedicated to working with nutrition scientists for the past 75 years. Nature has inspired them to develop natural formulas so that your well-being remains uncompromised. They have strict requirements regarding raw materials and avoid artificial equipment and...
Website: solgar.com |Brands like Solgar
Popularity 3.0/10
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24
Country Life
Gluten-free capsules made under GMP controls, sold as a single-ingredient daily theanine option without extra additives.
Top products: L-Theanine 200 mg
Website: countrylifevitamins.com |Brands like Country Life
Popularity 3.0/10
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25
Optimum Nutrition
Optimum Nutrition chose the name of their company quite well because they provide just that to the users. The optimum amount of nutrition needed by a person's body might differ from one individual to another, depending on a series of...
Website: optimumnutrition.com |Brands like Optimum Nutrition
Popularity 3.0/10
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26
NutraBio
NutraBio improves the quality of your life by delivering nutrition products that meet pharmaceutical standards. They offer supplements that contain all protein and vitamins and the community's overall well-being. For any fitness freak or a sports athlete, these tables are...
Website: nutrabio.com |Brands like NutraBio
Popularity 2.9/10
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27
Hydroxycut
Worried about which supplement is right for you and which one to choose among millions? Hydroxycut is here to solve your dilemma. With effective formulas that you can completely trust, Hydroxycut is the only addition you need to pace up...
Website: hydroxycut.com |Brands like Hydroxycut
Popularity 2.9/10
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28
Jarrow Formulas
Amino acid capsules from a Los Angeles manufacturer, vegan and non-GMO, aimed at people already using other amino supplements.
Top products: vegan THEANINE 100 Amino Acid· L-Theanine 200 mg Vegan
Website: jarrow.com |Brands like Jarrow Formulas
Popularity 2.8/10
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29
Bluebonnet
Bluebonnet makes exceptional nutrition by using natural nutrients and current sciences. Creating the formula as per your needs, they promise you a healthier lifestyle. Working with growers, farmers, and suppliers ensures the best whole food ingredients possible. Their products are...
Website: bluebonnetnutrition.com |Brands like Bluebonnet
Popularity 2.7/10
Official websites and social accounts
| Brand | Website | X / Twitter | YouTube | ||
|---|---|---|---|---|---|
| Nutricost | nutricost.com | /nutricostsupplements | nutricostofficial | – | Nutricost |
| NOW Foods | nowfoods.com | /nowfoodsofficial | nowfoodsofficial | @nowfoods | nowfoods |
| Nature’s Bounty | naturesbounty.com | /NaturesBounty | naturesbounty | @NaturesBounty | NaturesBountyHealth |
| Onnit | onnit.com | – | onnit | @onnit | – |
| Irwin Naturals | irwinnaturals.com | /IrwinNaturals | irwinnaturals | @Irwin_Naturals | – |
| Natural Factors | naturalfactors.com | /naturalfactors | naturalfactors | @naturalfactors | naturalfactors |
| Natural Vitality | naturalvitality.com | /NaturalVitalityOfficial | explore | @naturalvitality | – |
| GNC | gnc.com | /GNCLiveWell | gnclivewell | @GNCLiveWell | GNCvids |
| Force Factor | forcefactor.com | /ForceFactorFitness | forcefactor | @ForceFactor | – |
| Nature Made | naturemade.com | /naturemade | naturemadevitamins | @naturemade | naturemade |
L Theanine Buying Guide
If you are someone who is constantly under stress, experiencing anxiety and having trouble sleeping, L-Theanine can be the solution that you’ve been looking for. L-Theanine is a naturally occurring amino acid found in green tea leaves, which means it has been used for centuries due to its relaxing and calming effects. It is a popular supplement among students, athletes, professionals, and individuals looking for relief from mild to moderate anxiety.
Buying L-Theanine is easy, but finding pure and high-quality L-Theanine can be a daunting task. In this article, we will provide a comprehensive guide to help you understand what L-Theanine is, its benefits, potential side effects, and crucial factors to consider when shopping.
What is L-Theanine?
L-theanine is a non-dietary, water-soluble amino acid that is abundantly found in green tea, black tea, and certain mushrooms. It is structurally similar to a neurotransmitter called glutamate, that helps transmit nerve impulses in the brain. L-Theanine was initially discovered in 1949, but it wasn't until the 21st century that it gained popularity for its potential health benefits.
Benefits of L-Theanine
The benefits of L-theanine are many and have been studied in-depth in recent years. Here are some of the most popular benefits:
Reduced Stress and Anxiety
L-theanine can help reduce anxiety and stress as it affects the alpha brain waves, which are responsible for a state of relaxation and calmness. Many individuals who experience stress in their daily lives, such as students or professionals, take L-Theanine as a natural alternative to medication.
Improved Sleep Quality
L-Theanine can help improve sleep quality by promoting relaxation and reducing stress. Many individuals who struggle with insomnia or have difficulty falling asleep can benefit from L-Theanine supplements.
Increased Focus and Attention
Studies have found that L-Theanine can increase focus and attention, even when taken with caffeine. The combination of L-Theanine and caffeine has been shown to increase cognitive performance, alertness, and accuracy.
Boosts Immunity
L-Theanine can help boost immunity in individuals, primarily due to its antioxidant properties. Antioxidants can help protect cells from damage caused by harmful molecules called free radicals.
Potential Benefits for Cardiovascular Health
L-Theanine can help reduce blood pressure levels, which can be beneficial for individuals with high blood pressure. High blood pressure is linked to an increased risk of heart disease and stroke.
Side Effects of L-Theanine
L-Theanine is generally regarded as safe and well-tolerated, with little to no side effects reported. However, as with any supplement or substance, some individuals may experience side effects. Here are some potential side effects:
- Headaches
- Nausea
- Dizziness
- GI Upset
If you are experiencing any of these side effects, discontinue use immediately, and consult your physician.
What to Look for When Buying L-Theanine
When buying L-Theanine, there are specific factors you should consider to ensure that the product is pure, high-quality, and effective. Here are some crucial factors to keep in mind:
Pure Form of L-Theanine
When buying L-Theanine, you want to ensure that the product is of high purity and quality. Synthetic L-Theanine is found in many supplements, but it may not be as effective as the naturally occurring amino acid when found in green tea leaves. The natural form is believed to be much more potent due to the presence of impurities found in the leaves.
Form of L-Theanine
L-Theanine comes in many forms, such as capsules and tablets, but the most popular form is powder. Powdered L-Theanine is easier to measure, and the dose can be adjusted according to your individual needs..
Brand Reputation
Always buy L-Theanine from a reputable brand that follows good manufacturing practices (GMP). When you’re unsure of a brand, look for reviews from other consumers to see whether they’ve had a positive experience with the product.
Dosage and Serving Size
Before buying L-Theanine, some critical factors you should be asking include the dosage and serving size. It’s vital to understand the correct dosage of L-Theanine that you need to experience the benefits without any adverse effects.
Affordability
Lastly, it’s always a good idea to check the price of the L-Theanine supplement. While it may be tempting to select the cheapest option, don’t compromise on quality to save a few bucks. Strive for a supplement that provides a good balance between price and quality.
Conclusion
L-Theanine is a popular supplement that is widely used for its potential health benefits. As a natural alternative to medication, it has been found to be effective in reducing stress and anxiety, promoting improved sleep quality, and boosting cognitive performance.
When buying L-Theanine, keep in mind the factors mentioned above to ensure that you get a pure and high-quality supplement. With a little research, you can find the right product that meets your specific needs and preferences. Always remember to consult with your doctor before taking any supplements, especially if you’re taking any medications or have an underlying medical condition.
