A magnetic powder to be included in a cosmetic agent being removable by a magnetic attraction force from the cosmetic agent applied to the skin. The magnetic powder comprises a ferromagnetic ferrite, a mean volume particle diameter of 50 to 75 µm when determined from a particle size distribution obtained by a laser diffraction scattering method, a content of particles with a particle diameter of less than 37 µm of 15% by mass or less, and a content of particles with a particle diameter of 105 µm or more of 5% by mass or less. The magnetic powder preferably has a saturation magnetization of 80 Am 2 /kg or more.構成為可藉由磁力自塗佈於肌膚之美容劑去除吸附之美容劑用磁性粉。美容劑用磁性粉,係由顯示強磁性之鐵氧體所構成,由藉由雷射繞射散射法而得之粒徑分布所求得的體積平均粒徑為50~75μm。又,粒徑未達37μm的粒子之含量為15質量%以下、且粒徑為105μm以上的粒子之含量為5質量%以下。美容劑用磁性粉之飽和磁化,較佳係80Am2/kg以上。