http://www.thefriendswinsite.com/glutathione-supplement/review-on-puritans-pride-supplements-needed A Blog Dedicated to the Facts on Antioxidants and Glutathione Tue, 05 Jan 2010 21:16:59 -0600 http://wordpress.org/?v=2.8.6 hourly 1 http://www.thefriendswinsite.com/glutathione-supplement/review-on-puritans-pride-supplements-needed/comment-page-1#comment-921 pendarvisr Fri, 25 Dec 2009 04:53:59 +0000 http://www.thefriendswinsite.com/glutathione-supplement/review-on-puritans-pride-supplements-needed#comment-921 Actually the only substances that any data will be available for are those with a USP designation. For things like Vitamin E, this is possible but for things like ginkgo there are no established standards.<br><b>References : </b><br> Actually the only substances that any data will be available for are those with a USP designation. For things like Vitamin E, this is possible but for things like ginkgo there are no established standards.
References :

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