CosRX Skincare 44% off 11/20/2023 By Charlene Leave a Comment This post may contain affiliate links, please see my disclosure policy. The CosRX snail mucin is so popular and would be a perfect stocking stuffer. It is on sale for 44% off plus several other CosRX products. My daughter loves this stuff for hydrating dry, winter skin. You can see the items on sale by clicking here.