If you scan a particular shade in a foundation or blush and it doesn't show, try to do a generic manual search of that product. It may just be that we haven't inputted that particular shade. You can still get a general idea of a brand's ratings by searching similar products by that brand.
To do a manual search, open the app and type key words into the white space at the top of the screen that says “Search 500,000 products”
You can also submit the product and you'll be notified once it has been successfully submitted. Below is a visual guide on how to submit a product: