Oooh this one's a no-brainer! Sulwahsoo's Overnight Mask is high up on my list of most-wanted's! That yummy ginseng smell is so herbal and I feel it's super-nourishing! Alas, I used up my last sample of it the other day. ;A;

This would be perfect for the winter because #1: it's super-rich and #2: ginseng is brightening and energizing!