This responsive content plugin for Virtuemart can show (at the top or bottom of the product description and in the 'Add to cart' area), social sharing features from LINKEDIN, TWITTER, GOOGLE PLUS, PINTEREST, FACEBOOK (like, recommend , share, send , comment) (iframe or HTML5) . It is multilingual by detecting your site's current language, but you can also force a language from its settings. It includes all the required and product related OpenGraph tags such as og:type, og:url, og:site_name , og:description, og:image etc...
It installs via the regular Joomla installer.
Enable it and also make sure content plugins are enabled in VM configuration.
Demo? Just like displayed on this page.