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difference bwn L-asorbic acid and "acsorbic acid"

 
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bee
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PostPosted: Sat Jan 08, 2005 4:19 pm    Post subject: difference bwn L-asorbic acid and "acsorbic acid" Reply with quote

was wondering about buying ascorbic acid for creams as sometimes it is called simply that, or often times.
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drtodorov
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Joined: 10 Dec 2004
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PostPosted: Sat Jan 08, 2005 9:41 pm    Post subject: Reply with quote

Just as many other organic compounds, ascorbic acid has two mirror image forms called L and D optical isomers. Only L form can stimulate collagen production, although both are antioxidants. Strictly speaking, saying "ascorbic acid" without a qualifier means a mixture of L and D forms (a.k.a. racemic mixture). However, this rule is not always followed, so sometimes L-ascobic acid is referred to simply as "ascorbic acid." If unsure, ask the manufacturer, whether they use pure L or a racemic mixture.
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