A mask for skin care comprises a fiber base material constituted of modified fibers, and the modified fibers have at least one hydrophilic functional group grafted with cellulose fibers. The modified rate of the modified fibers is in the range from 5% to 30%, and the modified fibers can effectively improve the moisture absorption and the moisture-retaining capacity of the mask for skin care.一種護膚膜,包含一纖維基材,此纖維基材包含改質纖維,其中改質纖維係由接枝有至少一親水性官能基之纖維素構成,且改質纖維的改質率為5至30%,可有效提高護膚膜之吸水性及保濕能力。