O's Step-by-Step Foundation Guide

GINA'S TECHNIQUE

Gina took a top-down approach to foundation application. "I started at my forehead and then worked all the way to my neck," she says. Her formula of choice: a cream-to-powder compact. "Not only was Gina using a foundation that's too light—which made her complexion look ashy—but she was applying way too much," says Cynde. "The purpose of foundation is to even out patchy areas—not change your entire skin tone."

See Watson's 6-step makeup makeover