The QR-code, which typically is on many products, is a distinctive element of the print, but who is blind cannot detect it.
An international patent highlighted this code thanks to a braille code, for a correct use of the product and to guarantee a responsible consumption of the product.
With a smartphone, identifying the QR-code position, the blind person can be linked to a landing-page, which will explain the product features. We are all the same in front of the needs, especially when it is about health.