Comments on: Urgent Health Alert Warning: A Resveratrol Supplement containing a compound called Tween is a possible health hazard http://www.biotivia-blog.com/2009/01/09/urgent-health-alert-warning-supplements-containing-a-compound-called-tween-are-not-fda-approved-and-may-be-harmful-to-humans/ Tue, 20 Jul 2010 20:46:11 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Biotivia http://www.biotivia-blog.com/2009/01/09/urgent-health-alert-warning-supplements-containing-a-compound-called-tween-are-not-fda-approved-and-may-be-harmful-to-humans/comment-page-1/#comment-11 Biotivia Sat, 10 Jan 2009 11:01:45 +0000 http://www.biotivia.com/blog/?p=99#comment-11 One must be very careful in selecting a resveratrol supplier. Since this compound has hit the mainstream press a flood of totally inexperienced and somewhat dodgy companies have sprung up selling this product, or what they claim is resveratrol. None of these companies, most of which have some form of resveratrol or longevity in their names, have a lab, quality control, scientists or pharmacists on board, or any history manufacturing health products of any type, let alone a complex product such as resveratrol. The ConsumerLab did an evaluation of resveratrol brands recently which was open to all companies. In their independent lab tests they found that many products were basically worthless. For example Life Extension's product had only 26% of the claimed resveratrol in their actual product. One supplier refused to provide a sample of their product to test at all. The products which both passed the Consumer Lab tests and have doses of resveratrol recommended by the Harvard study published in the Journal Nature were Biotivia's Bioforte and Transmax. Bioforte was also the lowest cost per mg of all products tested. The moral here is look before you leap. One must be very careful in selecting a resveratrol supplier. Since this compound has hit the mainstream press a flood of totally inexperienced and somewhat dodgy companies have sprung up selling this product, or what they claim is resveratrol. None of these companies, most of which have some form of resveratrol or longevity in their names, have a lab, quality control, scientists or pharmacists on board, or any history manufacturing health products of any type, let alone a complex product such as resveratrol.
The ConsumerLab did an evaluation of resveratrol brands recently which was open to all companies. In their independent lab tests they found that many products were basically worthless. For example Life Extension’s product had only 26% of the claimed resveratrol in their actual product. One supplier refused to provide a sample of their product to test at all.

The products which both passed the Consumer Lab tests and have doses of resveratrol recommended by the Harvard study published in the Journal Nature were Biotivia’s Bioforte and Transmax. Bioforte was also the lowest cost per mg of all products tested. The moral here is look before you leap.

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