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New Year New You Health Wellness

BulkSupplements Pure L-Theanine Powder (250 grams)

4.7 out of 5 stars 1,442 customer reviews
Amazon's Choice recommends highly rated, well-priced products available to ship immediately.
Amazon's Choice for "l-theanine powder"
About the product
  • Clean & Pure Powder. No Fillers.
  • Factory Sealed Foil Zip Pouch.
  • Lab Tested for Verification & Guaranteed Purity.
  • Relaxing Agent. Helps Lower Blood Pressure.
  • Increase Alertness

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  • BulkSupplements Pure L-Theanine Powder (250 grams)
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Product Description

L-Theanine Powder

Antioxidant Amino Acid for Mood and Memory

  • Promotes calm and relaxation
  • May improve quality of sleep
  • Benefits heart health
  • May improve focus and memory
  • Lab-tested for purity and quality

What is L-Theanine?

Found in tea leaves and certain species of fungi, l-theanine is an amino acid. Unlike most amino acids, which build proteins for muscles, theanine primarily benefits cognitive health, promoting relaxation, healthy sleep, and focus.

How to Take L-Theanine

As a dietary supplement, take 100mg (scant 1/16 tsp) to 250mg (1/8 tsp) one to three times daily, or as directed by a physician. For healthy sleep, take 20-30 minutes before bed. 

Benefits of L-Theanine

Calmness and Relaxation

Theanine has been shown to affect certain neurotransmitters that ease anxiety and promote calmness. It may also counter the stimulating effect of caffeine and could improve sleep quality. 

Benefits Heart Health

Theanine increases nitric oxide production, which improves blood vessel function and heart health. Studies have found that supplementing with theanine may also lower bad cholesterol levels and blood pressure.

Improves Mood and Memory

Research suggests theanine could boost mood and improve memory, focus, and concentration. This may be due to its ability to increase serotonin, dopamine, and GABA levels in the brain. 


Product details

Size: 250 grams (8.8 oz) Powder
  • Product Dimensions: 6 x 2.5 x 8.2 inches ; 8.8 ounces
  • Shipping Weight: 9.4 ounces (View shipping rates and policies)
  • ASIN: B00E7GESKG
  • UPC: 764442775192 849720005243
  • California residents: Click here for Proposition 65 warning.
  • Average Customer Review: 4.7 out of 5 stars 1,442 customer reviews
  • Amazon Best Sellers Rank: #14,102 in Health & Household (See Top 100 in Health & Household)
  • Product Warranty: For warranty information about this product, please click here

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Important information

Legal Disclaimer
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.

Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

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Top customer reviews

March 6, 2017
Size: 100 grams (3.5 oz) Powder|Verified Purchase
0Comment| 90 people found this helpful. Was this review helpful to you? Report abuse
June 27, 2016
Size: 250 grams (8.8 oz) Powder|Verified Purchase
0Comment| 42 people found this helpful. Was this review helpful to you? Report abuse
January 18, 2018
Size: 100 grams (3.5 oz) Powder|Verified Purchase
0Comment|Was this review helpful to you? Report abuse
November 5, 2017
Size: 100 grams (3.5 oz) Powder|Verified Purchase
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December 5, 2017
Size: 100 grams (3.5 oz) Powder|Verified Purchase
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March 29, 2017
Size: 100 grams (3.5 oz) Powder|Verified Purchase
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November 27, 2017
Size: 100 grams (3.5 oz) Powder|Verified Purchase
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January 1, 2018
Size: 50 grams (1.76 oz) Powder|Verified Purchase
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Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and 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. Amazon.com assumes no liability for inaccuracies or misstatements about products.