Thiourea dioxide is widely used as a reducing agent in the textile industry, particularly for bleaching and reducing dyes on fabrics. It helps in achieving uniform dyeing and bright colors while being environmentally friendly compared to traditional reducing agents. It is also employed in hair care products as a hair straightening agent, where it breaks down the disulfide bonds in keratin, allowing for easier reshaping of hair. Additionally, it finds application in the paper industry for pulp bleaching and in the synthesis of certain organic compounds as a mild reducing agent. Its versatility and effectiveness make it a valuable chemical in various industrial processes.