Cosmetics and Personal Care Products: Disodium EDTA helps to improve the stability and shelf life of formulations by binding metal ions that can otherwise cause spoilage or rancidity in products such as shampoos, conditioners, and lotions. Medical Use: It is sometimes used in chelation therapy to treat lead poisoning or to remove excess metals from the body. Industrial Applications: Disodium EDTA is used in cleaning products, water treatment, and other processes where the binding of metal ions is necessary to improve the effectiveness of the product.