Makeup pilling is no fun, especially after you just applied a full face of makeup and your foundation starts sliding off in tiny pieces. Pilling occurs when two makeup or skin-care ingredients don’t mesh well together on your skin, and although there are ways to avoid this (more on that below), we wanted to know if there’s any way to salvage your full beat in this scenario. Ahead, we spoke with NYC-based makeup artist Mary Irwin to find out how.