An aqueous skin care agent 1 contains 4 to 85 mass % of water, 13 to 80 mass % of a magnetic powder and a thickener. The magnetic powder contains a ferromagnetic ferrite as a main component and has a mean volume particle diameter being 20 to 100 μm as determined from a particle size distribution obtained by a laser diffraction scattering method. The aqueous skin care agent 1 may contain a beauty component such as an iontophoretic component 3 and preferably contain 10 to 45 mass % of glycerin as the thickener.
