To provide a device for making an effective component permeate into hair, which enable the effect of a prepared material containing the effective component is increased.

The device is provided with two lever arms 2 and 3 which are crossed in a tongs-shape and press rollers 7 and 8 are respectively supported in each working end part of the lever arms 2 and 3. The press rollers 7 and 8 are rotated with nearly parallel axial lines 4 as a center so as to pressurize the operating end parts 11 and 12 of the lever arms. Then, they are mutually pressurized in areas on outer peripheral surfaces 13 and 14 for giving a pressure load to hair to be treated by the prepared material.