Disodium ethylenediaminetetraacetate (disodium EDTA)

Chelating agent: Disodium EDTA is a strong chelating agent that can form stable complexes with metal ions. This makes it useful in cosmetics and personal care products to stabilize formulations and prevent the presence of metal ions from adversely affecting product quality and stability.
Metal ion chelation: Disodium EDTA can chelate a variety of metal ions, including calcium, magnesium, iron and copper. This helps prevent metal ions from participating in oxidation reactions, thereby slowing down the oxidation and fading process of the product.
Preservatives: Due to its chelating effect on metal ions, disodium EDTA is also sometimes used as a preservative to extend the shelf life of products.
Cleaners and Detergents: In cleaners and detergents, disodium EDTA can be used to soften water, prevent the formation of scale, and improve cleaning results.
Medical Applications: In the medical field, disodium EDTA is sometimes used to chelate certain metal ions to help treat conditions such as lead poisoning.
Food Industry: Disodium EDTA is also used as a food additive, usually for antioxidants and stabilizing metal ions in food.
While disodium EDTA is widely accepted in many applications, some may raise concerns about its use, primarily due to environmental and sustainability concerns. Some alternatives have also been developed to reduce the potential impact on the environment. When selecting and using products containing disodium EDTA, it is recommended to read product labels carefully and make a choice based on personal needs and preferences.