Taylor Swift is one of the many stars who swear by MAC lipstick. Getty Seal this deal with a kiss. Countless stars have name-checked MAC lipsticks as their go-to over the years, from Taylor Swift to Kylie Jenner — not to mention the untold amount of on-screen sightings. (Case in point: Jenifer Aniston’s Rachel Green wore the aughts fave Paramount on “Friends.”) The iconic formulas come in a variety of finishes — and right now, you can score them for 30% off, along with other favorites, including the legendary Lipglass Gloss and lip pencils . The sale ends in just a few days on May 10, so don’t snooze. MAC M·A·Cximal Silky Matte Lipstick MAC Whether you love a mid-tone nude (like several Page Six editors ) or the legendary Ruby Woo red that Swift’s worn , the silky matte formula is made with shea and cocoa butters to hydrate lips while promising long wear. Available in dozens of shades, it’s easy to scoop up a few while they’re on sale.…