BY LEIGH ROBERTS SEP 10, 2016 If your makeup bag is full of of lipstick that all look basically the s same, then MAC is here to rescue you. This month, the cosmetics company is dropping its Liptensity Lipsticks collection, complete with 24 new shades that are like nothing you've seen before. And to make sure they weren't, MAC enlisted the help of tetrachromat Maureen Seaberg, who can see up to 100 million shades that most people can't. The collection will be available on ne on September 20 and in-store September 21.