Brand from South Korea: Sulwhasoo. Sulwhasoo Perfecting Cushion EX Refill Only is a replacement to complete flawless skin with its moisturizing and detailed coverage. The cushion foundation gives a slim-fit cover that last for long hours and dewy finish to express perfect makeup. 10 options available.With Sulwhasoo s Slim Fit High Coverage formula, this Perfecting Cushion offers smooth and long-lasting full coverage with a moisturizing finish. How to use: 1. Take a moderate amount with the included puff and apply across the entire face in a patting motion.