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White Plains, New York, January 6, 2015 —"It's very hard to find a good ashwagandha supplement," notes Tod Cooperman, M.D., President of, the health product testing company which recently completed evaluations of ashwagandha herbal supplements. Ashwagandha is generally used to reduce stress and anxiety, and has other potential applications. Clinical studies have typically been performed with ashwagandha root preparations providing at least 6 mg per daily serving of compounds known as withanolides. Yet, of eight ashwagandha supplements selected for testing by ConsumerLab, three contained less than this amount -- one of which provided less than one milligram. Another product contained only 64.7% of the withanolides expected from its label, and two other products contained much higher amounts of withanolides than listed. did identify three ashwagandha supplements with accurate labeling and daily doses in-line with those used in successful clinical trials. These three products were Approved for Quality by One of these products was tested through's voluntary Quality Certification Program. None of the products exceeded  contamination limits for lead, cadmium or arsenic — toxic heavy metals which can occur in herbal supplements.'s Ashwagandha Supplements Review is available online at Products covered in the new report are Eclectic Institute Ashwagandha, Nature's Plus Herbal Actives Ashwagandha, plnt by V (Vitamin Shoppe), Gaia Herbs Single Herbs Ashwagandha Root, Nature's Way Ashwagandha, Pure Encapsulations Ashwagandha, Herb Pharm Ashwagandha, Planetary Herbals Full Spectrum Ashwagandha, and Solaray Ashwagandha. The report also includes information about what ashwagandha has been shown to do in clinical trials, how to buy and use ashwagandha supplements, and potential side effects. is a leading provider of consumer information and independent evaluations of products that affect health and nutrition. Membership to is available online, providing immediate access to independent reviews of more than 1,000 products. 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.

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