To solve problems associated with prior arts and to provide a method and a fingerstall for infiltrating a component capable of infiltrating a variety of components into the human body or making the human body to absorb the variety of components efficiently.

The fingerstall 10 for infiltrating a component comprises a component reservoir section 16 having an internal space on the fingertip position that extends in the width direction of the nail plate 22, a component agent 12 stored within the component reservoir section 16 which is made by mixing and solidifying a resolvent that dissolves at body temperature and a hyperfine particle component made by milling a component to a predetermined nano scale, a body 11 having a three-dimensional shape that fits the shape of the finger and communicating with the component reservoir section 16 at the fingertip position, and a shield section 13. When the fingerstall 10 for infiltrating a component is worn on the finger, the component agent 12 within the component reservoir section 16 dissolves by the body temperature, and the hyperfine particle component contained in the dissolved component agent 12 infiltrates into the skin under the nail.