- It's all about the skin: "First and foremost, you want to start with good skin," says Zoller. "If you've got skin that's really dry, then the makeup is going to grab — no matter what you put on someone's face. So you want to make sure you are starting with a good palette." For an immediate fix, moisturize with a deeply hydrating mask. Zoller recommends Kate Somerville's Quench Hydrating Mask ($45).
- Prime time: "Then, I'll put a primer on," says Zoller. "A primer is kind of a barrier between their skin and the foundation and everything else you put on top." Her favorites? Paula Dorf's Perfect Primer ($36), and for a silicone-free option, try Korres Face Primer ($28).
- The power of powder: Zoller tries not to put on too much powder, but she does use different kinds of powder throughout the day. If she applies a setting powder first (which has more pigment to it), then she'll switch to a lighter mineral powder (which won't sit on the skin) as needed for touch-ups.