Product Tests Select a Review CL Answers  Warnings  Encyclopedia Where to Buy News
In the News - Press Coverage     Testimonials     Press Releases


  ADULTERATION SUSPECTED WITH SOME "MEMORY" SUPPLEMENTS

-- Few Ginkgo and Huperzine Supplements Pass ConsumerLab.com Tests; Quality High for Acetyl-L-Carnitine --

WHITE PLAINS, NEW YORK — NOVEMBER 18, 2008 — Tests by ConsumerLab.com of Ginkgo biloba supplements show that few products meet quality standards. Among the products selected for review, two appeared to contain adulterated material and two others contained less ginkgo than claimed on their labels, one of which was contaminated with lead and also failed to break apart properly. A fifth product failed to identify the part of the ginkgo plant used, a FDA labeling requirement. Only three ginkgo supplements passed ConsumerLab.com's tests.

The results were reported today in ConsumerLab.com's Product Review of Supplements for Memory & Cognition Enhancement which focuses on three ingredients that have shown some promise in improving memory — Ginkgo biloba, huperzine A and acetyl-L-carnitine. Among the huperzine products selected, two passed testing while a third provided only 14% of its claimed amount of the ingredient. All five acetyl-L-carnitine supplements passed testing.

Dr. William Obermeyer, ConsumerLab.com's Vice President for Research and a former FDA Natural Products Chemist, has been monitoring problems with ginkgo for several years. Dr. Obermeyer said, "Ginkgo extract is a moderately expensive ingredient. Some companies put less of it in their products than they claim or use ingredient that has been adulterated with inexpensive material that can fool non-specific tests." He added, "Highly specific test methods, such as HPLC, reveal these shortcomings, allowing us to direct consumers toward products of better quality."

The new report is available at http://www.consumerlab.com/reviews/Memory_Supplements_Ginkgo_Huperzine_Acetyl-L-Carnitine/GinkgoBiloba/. Brands covered in the new report include BioSynergy, Bluebonnet, Cognitive Nutrition, Freeda, Ginkgo-Go!, Ginkoba, Life Enhancements, Nature's Valley, Nutricology, Olympian Labs, Puritan's Pride, Solaray, Swanson, Total Nutrition, Universal Naturals, Vitamin Shoppe, and Vitamin World. The report also includes extensive information about how to buy and use these supplements and potential side effects.  

Reviews of other popular types of supplements are also available at www.consumerlab.com. New Reviews to be released in coming months will cover CoQ10, multivitamins, and zinc, as well as supplements for bone health (calcium, vitamin D and vitamin K), joint health (chondroitin, glucosamine, and MSM), prostate health and weight loss.

ConsumerLab.com is a leading provider of consumer information and independent evaluations of products that affect health and nutrition. 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. ConsumerLab.com is affiliated with PharmacyChecker.com, an evaluator of online pharmacies, and MedicareDrugPlans.com, which reviews and rates Medicare Part D plans. Subscription to ConsumerLab.com is available online. For group subscriptions or product testing contact Lisa Sabin, Vice President for Business Development, at lisa.sabin@consumerlab.com.



 

Follow us on...
   

ConsumerLab.com 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
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

©2018 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.