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Duplicate content is the common problem when it comes to eCommerce websites and there are multiple ways to deal with it... Once of the way is to go ahead and hire a content developer and ask him to write descriptions in such a way that it looks unique to search engine. The idea is fair but it is almost impossible when you have similar products and amount of it is around 50 plus... The idea i will prefer is to add some space for UGC so that users can add comments and reviews about the product you are offering... as the comments will be mostly unique it will produce unique content to the overall page and that penalty will be removed.