The 1 Acne Product I Use When My Skin Has a Case of the Winter Blues

The brand suggests you use Masque 105 one to three times a week, but I use it every day. When I need a full-face refresh, after cleansing, I apply a thick layer of the earthy green mask to my face and leave it on for 15 minutes, keeping it damp with a few spritzes of Lotion Yon-Ka PS ($42), a toner mist for dry skin. Then I remove with warm water.

The rest of the time, I'll apply Masque 105 as a spot treatment. I use it shamelessly anytime I feel a cystic pimple forming deep under my skin, even while talking on FaceTime or Snapchat, hanging out with friends, and going to bed with my boyfriend.