Embedding keyword-optimized text directly into a product's Amazon listing image — text that does not appear anywhere on the physical package — purely so Amazon's image-scanning and Rufus (Amazon's AI Shopping Assistant)-powering Cosmo (Amazon's Rufus-Powering Algorithm) index it as a searchable signal. This creates a second, invisible keyword surface beyond the title, bullets, backend Amazon Generic Keywords (Backend Search Terms Field), and Amazon A+ Content.
Essential Candy was advised to drop its secondary keyword list from Helium 10 Four-List Keyword System (Main, Related, Misspelled, Master) into blank space on the main product image, capturing extra indexing without cluttering the physical package or bullet copy.
Amazon's visual search and AI shopping assistant scan listing images for text and objects, not just structured fields, so image text functions as an additional (if unofficial) indexing channel.