They exfoliate regularly. I sound like a broken record, but I tell everyone to use Dermalogica Daily Microfoliant. This one works particularly well for those with acne because there’s salicylic acid in it. As the name suggests, you can use it everyday (most are too rough) and because it’s a powder you control how gentle or harsh it will be by the amount of water you add. Watch out for exfoliants with harsh beads that can break the skin’s surface making matters infinitely worse.