Have you noticed this inside your M·A·C box(es) and wondered what does that mean? Or perhaps you haven't noticed, left oblivious by your excited anticipation to gain access to your new treasure, you bypass the tiny writing on the inside arm of the packaging because your cosmetically blinded while ripping open the box.
It means that the product in that box qualifies for the Back 2 M·A·C program. Simply return 6 empty vessels; eye shadow pot, mascara tube, lipstick tube, foundation bottle... to either a M·A·C store or M·A·C online and you will receive a lipstick of your choice. For the submission page as well as a complete list of qualifying vessels, click here.
"Because we share your commitment to the environment, M·A·C accepts returns of its primary packaging through the Back to M·A·C Program. By returning six  M·A·C primary packaging containers to a M·A·C counter or M·A·C Cosmetics online, you’ll receive a free M·A·C lipstick of your choice as our thanks to you."