To simplify the work for removing residual chlorine contained in washing water and stably supply an aqueous solution of a chlorine removing agent without deterioration by providing an attachable and detachable structure for dissolving the chlorine removing agent to water and dripping a proper quantity thereof to the washing water.

In this scalp washer, the washing water stored in a tank 101 is discharged in shower form by a prescribed pressure to wash the scalp. This washer has a removal unit 10 which separately contains the chlorine removing agent for removing the residual chlorine in the washing water and water for dissolving the chlorine removing agent, and a dripping unit 20 attachably and detachably connected to the tank 101 and the removal unit 10, which dissolves the chlorine removing agent to the water and drip the resulting aqueous solution when connected to the removal unit 10.