This module helps you easily mark your products with
<meta name="robots" content="noindex, follow" /> tag.
If you want to remove your products from google index you can do it easily now. Simply use this module to do it.
This module allows you to enable this tag in admin dashboard.

WARNING: This module uses 'upc' field so it doesnt patches database, so if you are using this field than this module dont fit for you, you can contact me and we will find a solution togather