May's Best Beauty Buys

Mask Force

Kiehl's Rare Earth Deep Pore Cleansing Masque is a rare breed of clay mask: brilliant at clearing away the oil that can clog and enlarge pores but not coarse, crumbly, or overly drying. And now is a great time to try it. For the next three months, you can choose from four limited edition jars (designed by director Spike Lee, singer Florence Welch, and actors Mark Ruffalo and Rosario Dawson); 100 percent of proceeds goes to Recycle Across America, a nonprofit working to eliminate confusion about recycling by creating standardized informational labels for all recycling bins. Give the mask a try, and when the jar is empty, of course, recycle it! (If your community doesn't yet accept #5 plastic containers, return the jar to any Kiehl's store or bring it to one of the 232 Whole Foods stores that participate in the Preserve Gimme 5 program.)

Mask, Kiehl's, $23; Kiehls.com