L-Theanine with Suntheanine® 150 mg - 90 Veggie Capsules

by Doctor's Best
  • 4.5
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"Suntheanine L-Theanine 150 mg by Doctor's Best has reduced my stress level."  Read all reviews

Quantity per Container: 90 Capsules
Item Number: DRB1036
Serving Size: 1 Capsule Servings per Container: 90
Price per Serving:  $0.21 Price per Unit*: $0.21 per Capsule
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
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Many people have in their mind’s eye the picture of their own ideal relaxed state. It may be lying on some far-away beach‚ or perhaps in a cozy armchair by a fireplace. Wherever the setting may be‚ the feelings are similar. There is no stress or tension anywhere to be found. Unfortunately‚ most of the time reality breaks into these ideal situations‚ with a not-so-gentle reminder of things that need to be accomplished. Life’s daily challenges can leave you tense‚ with little time to take a breath of fresh air or even collect your personal thoughts. Sometimes‚ you need a sort of outlet to restore tranquility into your thoughts and actions. Sometimes‚ it takes more than a nap that may leave you even more tired or stressed when you wake up than before. One way of attempting to receive peace of mind and promote wellness throughout your body is through a dietary supplement.

Suntheanine® L-Theanine by Doctor’s Best provides the body with a pure form amino-acid developed by Doctor’s Best®. This‚ complex‚ called Suntheanine®‚ is a form of L-theanine‚ which is produced from green tea leaves in Japan. L-theanine is the ingredient of green tea leaves that lends both the umami flavor and relaxation-type benefits that can be taken away from drinking green tea. Directly from the tea leaf to you‚ Suntheanine® L-theanine may help promote a relaxed state‚ and may make you feel better and contribute to your health without making you drowsy. The capsule‚ once taken may be able to quickly begin its work‚ by exposing its benefits to the brain‚ and from there on to the rest of the body.

Suntheanine® L-theanine also may help support cognitive performance and attention to detail‚ as tension is decreased in the body. The serenity that may be fostered by the product has been compared to another amino acid‚ one that naturally occurs in the body called glutamate. Glutamate helps with nerve impulse transmits in the brain.

This product is completely vegetarian‚ and also does not contain milk‚ eggs‚ wheat‚ gluten‚ soy‚ sugar‚ corn‚ sweeteners‚ or preservatives. Doctor’s Best® has carried out extensive testing on their products including testing for the ability to induce genetic DNA problems (called mutagenicity) and acute toxicity‚ to assure quality and safety.

Each 90-capsule bottle of Suntheanine® L-Theanine by Doctor’s Best® should last for about 3 months at the recommended dosage of 1 capsule a day‚ or as directed.

For over two decades‚ Doctor's Best has provided a wide variety of nutritional supplements. All Doctor's Best products are made with the highest-quality raw ingredients available on the market. Its formulations are science-based and tested for effectiveness and safety.


These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.

  • MFG # DRB-00197
  • UPC # 753950001978
Official Website: http://www.drbvitamins.com

Serving Size: 1 Veggie Capsule
Servings Per Container: 90

Amount Per Serving / % DV

L-Theanine (As Suntheanine®) 150mg / †

†Daily Value not established.

Other Ingredients: Microcrystalline cellulose‚ modified cellulose (vegetarian capsule).

Non-GMO / Gluten-Free / Soy-Free / Vegan / Vegetarian.

Take 1 capsule daily without food‚ or as recommended by a nutritionally informed physician.

Store in a cool‚ dry place.

  • Dairy Free
  • Gluten Free
  • GMO Free
  • Soy Free
  • Vegan
  • Vegetarian

Ratings and Reviews

Write a Review
  • 4.5
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4 33
  • 33 Reviews
    • Verified Buyer

      Helps with more restful sleep

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      from Pasadena, MD on 3/23/2020
      Too early in the self-experimenation process, but results are good so far. I find myself waking less, in the middle of the night.

      Pros

      Quality and Price

      Cons

      None observed
      I would recommend this item to a friend.
    • Verified Buyer

      This works very well!

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      from LOS ANGELES CA on 3/13/2020
      Works like a charm! It is very relaxing and makes me feel zen!

      Pros

      High quality supplement!

      Cons

      There is nothing that I dislike!
      I would recommend this item to a friend.
    • Really is calming

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      from Broken Arrow on 7/27/2019
      Take one when anxious

      Pros

      Easy to take one or two daily

      Cons

      Nothing
      I would recommend this item to a friend.
    • Verified Buyer

      Great calming product

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      from Seattle on 8/12/2018
      L-Theanine with Suntheanine by Doctor's Best helps me when I get revved up or anxious. Like a gentle sense of calm, but no drowsiness. Also helps if I wake up too early in the morning, to calm my thoughts and I drift off.

      Pros

      Gentle, helpful for nerves.

      Cons

      Nothing. But I prefer another brand that has a chewable tablet. It works better.
      I would recommend this item to a friend.
    • Stress reducer

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      from Sylvan Lake, MI on 11/13/2017
      I felt a real difference in my mood when I started taking L-Theanine with Suntheanine 150 mg by Doctor's Best.

      Pros

      Effective

      Cons

      Nothing
      I would recommend this item to a friend.
    • Verified Buyer

      Definitely helped

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      from MI on 11/10/2016
      I took Suntheanine L-Theanine 150 mg by Doctor's Best on my doctor's recommendation to help with some depression and it definitely helped. I have heard (although its debated) that suntheanine form is more helpful than l-theanine.
      I would recommend this item to a friend.
    • Verified Buyer

      Effective and affordable

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      from NC on 10/06/2016
      Suntheanine L-Theanine 150 mg by Doctor's Best is highly recommend these for anxious minds.
      I would recommend this item to a friend.
    • Verified Buyer

      A great company

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      from Nj on 9/01/2016
      Suntheanine L-Theanine 150 mg by Doctor's Best has reduced my stress level.
      I would recommend this item to a friend.
    • Verified Buyer

      Great Affordable Product

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      from Chattanooga, TN on 8/05/2016
      Suntheanine L-Theanine by Doctor's Best works wonders for me and this brand is affordable.

      Pros

      Helps me awaken more rested.

      Cons

      No dislikes so far.
      I would recommend this item to a friend.
    • Helps keep calm

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      from Tn on 7/02/2016
      Suntheanine L-Theanine 150 mg by Doctor's Best makes it easier for me to go to sleep.
      I would recommend this item to a friend.
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Additionally, PureFormulas is unable to directly recommend products in relation to specific health conditions. Please contact your trusted healthcare practitioner for direct product recommendations.

If you have any general questions regarding orders or our policies and programs, please contact our Customer Happiness Team @ 1.800.383.6008

If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Your healthcare professional is the best source for guidance before beginning an exercise or nutritional supplement program.

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.

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