Sometimes, your makeup just needs a refresh. It’s easy to get caught in a routine of using the same old products, even if they’re not the best ones for you. Or you hit a life change that requires a makeup revamp (starting a new career, going back to work after baby, turning A Certain Age). So how do you start from scratch? Hit the beauty counter. We reached out to four top makeup artists that I’m honored to call friends to get their expert advice.