In order for fine wrinkles to be improved efficiently within a short period of time without the necessity of expensive medicines, moisturizing agents, or the like, being used, an oil based preparation for external use for skins is applied onto a skin, the oil based preparation containing: (i) 50% by mass to 95% by mass of an oil constituent, which contains 10% by mass to 100% by mass of a solid or semisolid oil constituent, and (ii) 5% by mass to 50% by mass of particles, the oil based preparation having occlusion characteristics of at least 50%.
