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.
