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PureFormulas   L-Theanine 100 mg - 60 Vegetarian Capsules

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20 Reviews

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Item Number: PUF1012
Serving Size: 1 Capsule Servings per Container: 60
Price per Serving:  $0.35 Price per Unit*: $0.35 per Capsule
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
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Amino acids are renowned for their positive impact on human health. L-theanine is one of the most well-known amino acids‚ due to its ability to promote non-drowsy relaxation during periods of low-level stress. Green tea contains L-theanine‚ which may explain why it’s been associated with promoting calmness for centuries. Mushrooms also contain the water-soluble amino acid.

Despite all of its benefits‚ green tea is an acquired taste; some people may also be allergic to it. However‚ you don’t have to miss out on the mental health support it offers if you take PureFormulas’ L-Theanine. Each capsule of this supplement provides 100 milligrams of pure amino acid. Those who avoid eating meat can take solace in the fact that this product is vegetarian-friendly.

When combined with caffeine‚ L-theanine may contribute to improved cognitive performance and focus. The anti-anxiety effects of theanine may come from the fact that its chemical structure is very similar to that of glutamate‚ which is a naturally occurring amino acid that works in your brain to transmit impulses between nerves.

One bottle of L-Theanine by PureFormulas contains 60 capsules‚ which should last for about two months at the recommended dosage of one capsule daily.

PureFormulas is a leading online dietary supplement retailer. We now offer our own line of effective‚ safe nutritional supplements. Our products are manufactured in the United States‚ in the same GMP-certified facilities that major brands use to produce Certified Organic and NSF Certified for Sport® supplement. We provide the best value while promoting healthy lifestyles through ISO-certified research and VCP certified raw material safety and quality. These products are free of common allergens like gluten‚ yeast‚ wheat‚ dairy‚ and corn. In addition‚ they don’t contain any artificial flavors‚ colors‚ or preservatives.

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 # 98740-60X
  • UPC # PUF1012
Official Website:

Serving Size: 1 Vegetarian Capsule
Servings Per Container: 60

Amount Per Serving / % DV

L-Theanine (Suntheanine®) 100mg / *

*Daily Value (DV) not established.

Other Ingredients: Microcrystalline cellulose‚ dicalcium phosphate‚ hydroxypropyl methylcellulose (capsule) and vegetable stearate.

Non-GMO / Gluten-Free.

As a dietary supplement‚ adults take 1 capsule daily or as directed by your health professional.

If you are pregnant‚ nursing‚ have any health condition or taking any medication‚ consult your health professional before using this product.

Keep out of the reach of children.

Store in a cool‚ dry place.

Use only if safety seal is intact.

Notice: Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.

  • Gluten Free
  • GMO Free

Ratings and Reviews

Write a Review
  • 4.8
5 20
  • 20 Reviews
    • Helps calm

      from Florida on 7/29/2021
      Grateful for something that helps take the edge off my anxiety.


      Easy to take, affordable, and works


      review-checkI would recommend this item to a friend.
    • L-THEANINE vegetarian 100 mg.

      from Gettysburg,Pa, on 2/20/2020
      I love this product. Take two in the morning, one in the afternoon. Works great with caffeine, and calms you down. Yet, picks you back up. I ahve ET and I take no drugs, only herbs. This stops the tremors. 


      It's all good, no cons at all. I have been taking this under doctors suggestion for a few years. 


      review-checkI would recommend this item to a friend.
      2 of 2 people found the following review helpful.
    • Verified Buyer

      Quiet the Mind

      from Seminole FL on 1/01/2020
      I love this product when my mind begins racing - especially at night. Calms it right down. Plus, Pure Formulas brand is one I have found I can trust.


      It works!


      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Works good

      from Pennsylvania on 12/26/2019
      I like this. I think it works for me very well when I'm anxious and can't fall asleep.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      L Theanine

      from ORTING WA on 10/22/2019
      My doctor recommend it for my stress and after a month it work on bring my stress level down.


      Works well for me


      review-checkI would recommend this item to a friend.
    • L-THEANINE vegetarian 100 mg.

      from Gettysburg,Pa, on 10/16/2019
      Been taking this now for over a year. If you have essential tremors ,trouble sleeping, fast pulse,need to relax but,don't want to feel tired when taking it & the big plus is it works wonders with caffeine too and, can still take Xanax, if you feel you need it. I take two in the morning & one at night.


      i really like it.


      review-checkI would recommend this item to a friend.
      1 of 1 people found the following review helpful.
    • Verified Buyer

      Great Quality

      from Pennsylvannia on 6/21/2019
      Has really helped even out moods in 10 and 12 year olds




      review-checkI would recommend this item to a friend.
    • Crosses blood-brain barrier

      from Washington State on 8/21/2017
      This L-Theanine 100 mg by PureFormulas knocks me out. It makes me very relaxed.


      Makes me very relaxed


      Can't take it during the day
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Good to balance irritability

      from California on 5/29/2017
      L-Theanine by PureFormulas is a good product to keep you calm. I tried different brands and the Pureformulas brand works great.


      Reasonable price.


      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Another great product

      from NC on 10/06/2016
      PureFormulas brand never disappoints! L-Theanine works great and is affordable!
      review-checkI would recommend this item to a friend.
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Customer Questions and Answers

1-1 of 1

  • Question:
    Safe for dogs? What is vegetable Stearate? Thanks for quick response..My dog has been on doggie version 100mg called Anxitane..This product now on back order so would like to order the Pure Formula version if safe for doggies. My vet gives her approval. Thanks
    Mary Polk on 5/08/2015 Answer:
    • Mary, we strongly recommend you speak with your vet about what would be best to give your dog. No one here is qualified to advise you on whether this product is safe for pets. 
      PureFormulas on 5/12/2015

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