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Hey Duplicate content is duplicate content whether that is pages on the same site, different sites, different IP's, different C blocks etc. As long as these 'snippets' are not the main page content then having a duplicate bit of text between the blog and the product page should not be a major issue. Point to take away here is that lots of sites use duplicate product descriptions etc, it is better if they are unique, but it will not generate a penalty if it is not the main page content. Go unique if you can but ultimately do what is best for your users. Hope that helps. Marcus