A cosmetic method having: a step in which a water-based pack material (1) containing water, a magnetic powder (11), a thickener, and a charged ion-introducing component (13) is coated on the skin (2); a step in which a magnetic force is caused to act on the magnetic powder (11) in the water-based pack material (1) coated on the skin (2) and the magnetic powder (11) is adsorbed and removed from the skin surface (21) while leaving an aqueous solution (12) of the ion-introducing component on the skin surface (21); and a step in which an ion-introduction current is supplied to the skin (2) having the aqueous solution (12) distributed thereupon and the ion-introducing component (13) is caused to penetrate inside the skin.