Tetrasodium EDTA is a water-soluble ingredient used as a chelating agent in cosmetics and personal care products because of its ability to sequester metal ions and allow them to remain in formulas but lose their ability to react with other ingredients. This ability allows it to not only soften water, but preserve formulas as well by improving its stability when it is exposed to air and prevent microbial growth.
Tetrasodium EDTA is recommended for alkaline products, like most handcrafted soap. It can also be used in creams, lotions and surfactant systems. If your formulation is clear or transparent, it may be preferred over Disodium ETDA as it is much more soluble in water. It can prevent the potential defaming action of hard ions, reduce soap scum and improve lather and foaming action.
Recommended Usage Rate: 0.1% for Preservative Efficacy Variable for other uses.
INCI: Tetrasodium EDTA CAS NO.64-02-8
Physical Properties: - Soluble in water - Molecular Wt. 308.17
Uses: - Formulated into many products, including face creams, shower gels, hair care products, and many other personal care items
