As this article in Nature magazine tells, authenticators are raising their game, trying to perfect the extraction and purification of grape-skin DNA from bottles of wine, in the hope they will be able to reliably distinguish between the 2, 500 grape varieties.

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At the Loisium Wine and Spa Resort in Langenlois, Austria, aestheticians combine the property's best assets to offer vinotherapy--a practice that uses grapes and grape seed oil to improve the skin.

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