Product Tests Select a Review CL Answers  Warnings  Encyclopedia Where to Buy News

Clinical Updates
Filter:   By Product Type  |  By Date   

L-Tryptophan and 5-Hydroxytryptophan (5-HTP)
5-HTP Concern -- (8/4/2013) Three cases of eosinophilia-myalgia syndrome (EMS) have been reported among people taking 5-HTP, a compound related to L-tryptophan. EMS is a debilitating immune condition which has occurred in people taking L-tryptophan, but there were no previous reports of it being caused by 5-HTP. Get the details in the the updated review article on L-Tryptophan and 5-HTP >>
L-Tryptophan -- Still a Problem? -- (11/20/2011) A woman in Illinois taking L-tryptophan for insomnia developed the same serious problems that resulted in L-tryptophan being temporarily removed from the market several years ago. Is L-tryptophan any safer now than it was before? For more information, see the update to the L-Tryptophan and 5-HTP Review Article.



Follow us on... Encyclopedia

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

Join |  Sign In
Join Us on Facebook! Join Us on Instagram! Join Us on Twitter! Join Us on Google+! Join Us on YouTube! 
Product Tests
Brands Tested
Health Conditions
CL Answers
Clinical Updates
Recalls & Warnings
Where to Buy Products
Raw Materials Tests
Testing Program
Join CL Today
Join Free Newsletter
Group Subscriptions
Gift Membership
About Us
The CL Seal
CL Survey
Privacy Policy
Contact Us/Help

©2018, 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. name and flask logo are both registered trademarks of, LLC. This site is intended for informational purposes only and not to provide medical advice.