Mobile bar codes are increasingly gaining momentum and companies such as Toys R Us and Glamour are placing them on billboards and walls – providing consumers another way to shop their favorite products.

Unilever is letting consumers shop its Dove, Tresemme and Nexxus products via mobile bar codes featured on the company’s static ads in Glamour magazine.

L’Oreal and Glamour are introducing a new shopping experience within New York taxicabs that lets consumers view how-to videos featuring Yves Saint Laurent and Lancome beauty products and buy them on the spot.

If you are considering adding a mobile bar code to your brand marketing efforts, there are two key variables to consider when choosing a solution.