In the News - Press Coverage     Testimonials     Press Releases


Feeling Stressed? ConsumerLab.com Reviews the Evidence for L-Theanine and Test Popular Products

White Plains, New York, August 21, 2015 — L-theanine is often promoted to reduce stress, and for conditions such as ADHD — but does it really work? ConsumerLab.com recently reviewed the evidence and purchased popular brands of L-theanine to test their quality. While products selected for testing contained their claimed amounts of L-theanine and met other quality criteria, they differed significantly in dose and price, with some high quality supplements costing nearly one-third less than other brands.

The test results and quality ratings appear online in ConsumerLab.com's new L-Theanine Supplements Review. The report covers 8 products selected by ConsumerLab.com, and three others which passed the same tests in ConsumerLab.com's voluntary Quality Certification Program. Also included is one product similar to one which passed testing but which is sold under a different brand name. The report discusses the evidence for L-theanine and doses have been found to be effective in clinical studies. Information about safety, side-effects and potential drug-interactions is also presented.

The following products are included in the report: Bluebonnet L-Theanine, Country Life L-Theanine, Jarrow Formulas L-Theanine 200, Life Extension L-Theanine, NOW L-Theanine Double Strength, Puritan's Pride L-Theanine, Solgar L-Theanine, Source Naturals L-Theanine, Swanson Ultra Suntheanine, Thorne Research Theanine, TwinLab L-Theanine Dots and Vitamin World L-Theanine.

Founded in 1999, ConsumerLab.com is a leading provider of consumer information and independent evaluations of products that affect health and nutrition. Membership to ConsumerLab.com is available online and provides immediate access to reviews of more than 1,000 products from over 400 brands. The company is privately held and based in Westchester, New York. It has no ownership from, or interest in, companies that manufacture, distribute, or sell consumer products.



— END —

back to top





 

   BECOME A MEMBER
JOIN NOW



Product Reviews

ENCYCLOPEDIA
In addition to our product reviews our encyclopedia covers the following:

Herbs & Supplements

Conditions

Drug Interactions

Alternative Therapies

MEMBER TESTIMONIALS


Follow us on...
facebook twitter
 
 
Join |  Sign In
   
Join Us on Facebook! Join Us on Instagram! Join Us on Twitter! Join Us on YouTube! Join Us on YouTube!
Product Tests
Brands Tested
Health Conditions
Encyclopedia
CL Answers
Clinical Updates
News
Recalls & Warnings
RDAs
Where to Buy Products
Raw Materials Tests
Testing Program
How Products Were Tested
Join CL Today
Testimonials
Join Free Newsletter
Group Subscriptions
Gift Membership
About Us
The CL Seal
CL Survey
Privacy Policy
Sitemap
Contact Us/Help

©2019 ConsumerLab.com, LLC. All rights reserved. A single copy of a report may be printed for personal use by the subscriber. It is otherwise unlawful to print, download, store or distribute content from this site without permission.
ConsumerLab.com name and flask logo are both registered trademarks of ConsumerLab.com, LLC. This site is intended for informational purposes only and not to provide medical advice.