noun
decolorant; bleaching agent
A substance used to remove color, such as in hair bleaching, stain removal, or industrial processes.
この脱色剤は髪の色を抜くのに使います。
This decolorant is used to strip hair color.
衣類のシミを取るために脱色剤
I used a bleaching agent to remove the stain from the clothing.