Last year in a post to the Practical Archivist Blog, Sally J. gave an amusing rant about "false" advertising when it comes to farm fresh eggs.
She neatly brings this around to the advertising ploys used by people trying to sell us products to use in the preservation of our heirlooms and artifacts. Understanding how we can be fooled by product advertisements is certainly important since the very continued existence of some of our treasures depends on preservation products living up to their hype. As you might have suspected, terms like "archival" and "photo-safe" are much over-used and sometime down right misleading.
You can read Sally's article at: http://practicalarchivist.com/?s=eggs