Tetrasodium Etidronate 85% Powder (HEDP-4Na)
Tetrasodium Etidronate 85% Powder is a highly concentrated chelating agent and stabilizer used in skincare and cosmetic formulations to improve product performance, stability, and shelf life. It is particularly favored in soaps, cleansers, and hard-water formulations for its ability to prevent metal ions from degrading the product.
What it Does in Skincare: It acts as a "lobster claw" that grabs metal ions (calcium, magnesium, iron) in hard water, preventing them from forming soap scum or reducing the effectiveness of cleansing agents.
Stabilizer and Antioxidant: It prevents the oxidation of other ingredients, maintaining the original color, fragrance, and texture of the cosmetic product. Soap Performance: In bar soaps, it is used to prevent the soap from becoming moldy and prevents mineral buildup on the skin, providing a softer feel.
It helps boost the efficiency of other preservatives by inhibiting microbial growth.