COSRX Full Fit Line products one of COSRX best selling line products are formulated with high content of propolis extract which instantly replenishes & nourishes skin & lips. Mix & match with other propolis line products for even better results. Rich honey-like texture The rich texture of the Propolis Lip Sleeping Mask absorbs into the lips like magic & allows a non-sticky pleasant overnight treatment. Because it's not sticky you can use this during the day as a lip balm too!