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Item #:
249740631
Doctor's BEST L-Theanine Caps 150 mg, for Men & Women, 90 Veg Capsules
88% of respondents would recommend this to a friend
Item #:
249740631
ETB 5029
Price Details
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Order now and get it around Thursday, October 01
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L-theanine helps encourage a relaxed state without drowsiness, supporting a sense of calm during everyday stress while still allowing for alertness and focus.
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What Stands Out
Natural Formula
Crafted from high-quality, pure L-Theanine, this supplement promotes relaxation without sedation, ensuring a calm and focused mind without compromising alertness.
Vegetarian Capsules
Formulated with 90 vegetarian capsules, ideal for those following a plant-based lifestyle, ensuring everyone can enjoy the calming benefits without dietary restrictions.
Enhanced Stress Relief
Specifically designed to address stress and anxiety, helping to improve mental clarity and overall mood, positioning it as a superior choice over other calming supplements.
Product Details
| Product Dimensions | 2.13 x 2.13 x 3.69 inches (5.4 x 5.4 x 9.4 cm); 2.12 ounces (60.1 grams) |
| Item model number | DRB-00197 |
| Department | Health and Beauty>Health and Wellness |
| Date First Available | September 1, 2009 |
| Manufacturer | Doctor's Best |
| Brand Name | Doctor's BEST |
| Primary Supplement Type | multivitamin |
| Item Form | Capsule |
| Diet Type | Gluten Free |
| Product Benefits | Relaxation |
| Age Range Description | Adult |
| Container Type | Bottle |
| Dosage Form | 150 |
| Model Name | r's Best L-Theanine Contains Suntheanine, Helps Reduce Stress & Sleep, Non-GMO, Gluten Free, Vegan, 150 mg (DRB-00197), 90 Count |
| UPC | 753950001978 |
| Manufacturer | Doctor's Best |
| Item Nype Name | L-Theanine |
| Model Number | DRB-00197 |
| Manufacturer Part Number | DRB-00197 |
| Unit Count | 90 Count |
| Item Dimensions | 2.13 x 2.13 x 3.69 inches (5.4 x 5.4 x 9.4 cm) |
| Number of Items | 1 |
| Total Servings Per Container | 90 |
| Flavor | Unflavored |
| Material Features | Vegetarian |
| Specific Uses For Product | L-Theanine (Suntheanine®) 150 mg |
| Allergen Information | Gluten Free |
| Color | No Color |
| Package Weight | 1 Pound |
Who Should Buy?
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Stress Relief Seekers
Ideal for individuals seeking a natural way to manage stress and anxiety effectively without sedation.
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Focus Enhancers
Beneficial for those needing improved concentration or cognitive performance during work or study sessions.
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Sleep Quality Improvers
Great for individuals looking to enhance sleep quality without causing drowsiness or disrupted sleep patterns.
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Sleep Disorder Patients
Not suitable for those with severe sleep disorders requiring professional medical interventions and treatments.
Product Description
Dietary Supplement Disclaimer
Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is L-Theanine and how does it work?
Answer: L-Theanine is an amino acid primarily found in green tea. It promotes relaxation and helps reduce stress without causing drowsiness. The compound increases the production of gamma-aminobutyric acid (GABA) in the brain, which helps improve mood and enhances cognitive function. This makes it ideal for those looking to manage anxiety or improve focus during stressful situations, such as studying or working on tight deadlines. -
Question:
What are the key benefits of taking Doctors Best Suntheanine?
Answer: Doctors Best Suntheanine provides a range of benefits including enhanced relaxation, improved mental clarity, and support for overall emotional balance. Its unique formulation is designed to promote a calm yet alert state, particularly helpful in high-pressure environments. This can be particularly beneficial for individuals facing consistent daily stress at work or those who engage in intense study sessions. -
Question:
Is Doctors Best Suntheanine safe for everyone?
Answer: Generally, Doctors Best Suntheanine is considered safe for most individuals. However, those who are pregnant, nursing, or taking medication should consult with a healthcare provider before starting any new supplement. This ensures that potential interactions or contraindications are discussed, particularly for individuals managing health conditions that require medication. -
Question:
How should I take Doctors Best Suntheanine capsules?
Answer: The recommended dosage for Doctors Best Suntheanine is typically one capsule taken daily, or as directed by a healthcare professional. It's best consumed with water and can be taken with or without food. For optimal results, consider timing your intake before stressful events or during study periods to maximize its calming effects. -
Question:
Can I take L-Theanine with caffeine?
Answer: Yes, combining L-Theanine with caffeine can enhance cognitive performance and improve focus while reducing potential side effects like jitteriness associated with caffeine alone. Many individuals find that this combination helps them to maintain energy and alertness, making it ideal for situations like studying for exams or long work meetings. -
Question:
Are there any side effects associated with Doctors Best Suntheanine?
Answer: Doctors Best Suntheanine is typically well-tolerated, but some individuals may experience mild effects such as dizziness or gastrointestinal upset. It's essential to start with a lower dose to assess your body's response before increasing the intake. Keeping track of how you feel after taking the supplement can help you determine the amount that works best for your body. -
Question:
How long does it take to feel the effects of L-Theanine?
Answer: Many users report feeling the calming effects of L-Theanine within 30 to 45 minutes after consumption. However, individual responses can vary based on factors such as body composition, metabolism, and the presence of other substances like caffeine. Regular use can result in cumulative benefits, which can enhance your overall mental clarity and mood over time. -
Question:
Is Doctors Best Suntheanine a vegetarian product?
Answer: Yes, Doctors Best Suntheanine capsules are vegetarian, making them suitable for individuals following a plant-based diet. They are formulated without animal-derived ingredients, allowing more people to incorporate them into their daily health regimen without compromising their dietary choices. -
Question:
Can L-Theanine support sleep quality?
Answer: While L-Theanine is not a sleep aid, it may improve sleep quality by promoting relaxation and reducing stress. This can help in falling asleep more easily and enjoying deeper sleep cycles. For those struggling with pre-sleep anxiety or racing thoughts, taking L-Theanine in the evening might be beneficial to wind down. -
Question:
Where can I buy Doctors Best Suntheanine L-Theanine - 90 Vegetarian Capsules?
Answer: You can purchase Doctors Best Suntheanine L-Theanine - 90 Vegetarian Capsules from Ubuy in Ethiopia. Ubuy provides a convenient platform for online shopping, ensuring you can access this high-quality supplement with ease.
Nutritionist's Take
Doctor's Best Suntheanine L-Theanine offers a notable combination of stress relief and cognitive support. L-Theanine, an amino acid derived from tea leaves, is recognized for its calming effects without sedation, making it particularly useful for those managing anxiety or seeking improved focus. This product's vegetarian capsule form ensures it is suitable for various dietary preferences, including vegetarians and vegans. The ingredient quality appears to be high, with clear labeling and transparency regarding its Suntheanine source. However, while the benefits of L-Theanine are backed by research, potential drawbacks include individual variability in response and potential interactions with medications. Overall, nutritionists consider this product a beneficial addition to a balanced wellness regimen but recommend consulting with a healthcare provider, especially for those on medication or with underlying health conditions.
Doctor's BEST 5-HTP DRB-00197 Editorial Review
Doctor's Best Suntheanine L-Theanine - 90 Vegetarian Capsules provides a natural and effective way to promote relaxation and improve mental clarity. This supplement features 150 mg of Suntheanine, a patented form of L-Theanine that supports calming alpha brain wave activity. Users have praised its calming effects, often describing it as a great alternative to anxiety medications without causing drowsiness. Many have found it helpful not only in achieving restful sleep but also in reducing daily stress. The non-hormonal formulation is particularly appealing for those looking to avoid melatonin and its associated limitations. Overall, it's considered a valuable addition to a wellness routine addressing anxiety and sleep disturbances.
Customer Reviews & Ratings
2504 customers ratings
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5 Star
77%
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4 Star
12%
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3 Star
6%
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2 Star
2%
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1 Star
3%
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Pros
- Contains 150 mg of Suntheanine for relaxation
- Supports mental clarity and stress relief
- Non-hormonal formula ideal for sensitive users
- Helps promote restful sleep without drowsiness
- Natural alternative to anxiety medications
Cons
- Some users may need higher doses for desired effects
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Important information
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ETB 5029
Order now and get it around Thursday, October 01
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Features & Benefits
- Contains 150 mg of pure Suntheanine L-theanine per capsule.
- Supports relaxation and mental clarity without causing drowsiness.
- Enhances cognitive performance by promoting focus and attention.
- Convenient veggie capsules, suitable for various dietary lifestyles.
- Non-GMO, gluten-free, soy-free, and vegan-friendly formula.
- Backed by over 35 years of scientific research and testing.
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