The magnetic substance powder and tackifier of water of the water system skin conditioner (1) of the present invention containing 4 ~ 85 mass %, 13 ~ 80 mass %. Magnetic substance powder system is 20 ~ 100 μm to show the ferrite of ferromagnetism as principal component, and by the volume average particle size that the particle diameter distribution with laser diffraction scattering method acquisition is found out. Water system skin conditioner (1) can also contain the Cosmetic Ingredient of electro-ionic osmosis ingredient (3) etc.. And preferably contain the glycerol of 10 ~ 45 mass % as tackifier.本發明之水系護膚劑(1)含有4~85質量%之水、13~80質量%之磁性體粉末、與增黏劑。磁性體粉末係以顯示強磁性之肥粒鐵作為主成分，且由以雷射繞射散射法獲得之粒徑分佈求出之體積平均粒徑為20~100μm。水系護膚劑(1)亦可含有離子導入成分(3)等之美容成分。且，較好含有10~45質量%之甘油作為增黏劑。
