MAC Studio Fix Powder Plus Foundation Refill. This is a high-coverage powder foundation that provides a natural matte finish. It is long-wearing and helps to control shine. Suitable for all skin types. Available in a range of shades to match your skin tone. Get flawless-looking skin with this iconic formula. Achieve a smooth and even complexion that lasts all day. The refillable format makes it an eco-conscious choice for your makeup collection.