A product identification service uses image analysis and user interaction. The product identification service includes functionality to compare a first portion of a retail product image to a plurality of candidate retail product images. The retail product image includes a pictorial likeness of a plurality of manufactured retail products. The first portion of the retail product image corresponds to a first retail product. The product identification service also includes functionality to generate a candidate product set comprising candidate retail product images satisfying image comparison criteria. Each candidate retail product image is representative of a retail product having a plurality of product characteristics. The product identification service also includes functionality to determine, based on at least one candidate retail product image in the candidate product set, one or more product identity queries configured to solicit additional product identity information from a user.