Today, we'll be revealing what lurking behind door number 3 of our exclusive and limited Cosmeterie Advent Calendar! It's the YÙ Beauty Mask Applicator Brush! A silicone, double-ended brush mask that effortlessly does the job of applying face masks without wasting any product. The soft end is perfect for applying liquid or gel masks while the sturdy end is ideal for applying thicker masks such as clay or powder-based face masks. Great for mixing powder masks as well.