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Disodium EDTA

What is it?

EDTA (ethylenediamine tetraacetic acid) and its salts, Calcium Disodium EDTA, Diammonium EDTA, Dipotassium EDTA, Disodium EDTA, TEA-EDTA, Tetrasodium EDTA, Tripotassium EDTA and Trisodium EDTA, and the related ingredients HEDTA (hydroxyethyl ethylenediamine triacetic acid) and its trisodium salt, Trisodium HEDTA, are crystalline powders often sold as aqueous solutions. In cosmetics and personal care products, these ingredients are widely used and can be found in moisturizers, skin care and cleansing products, personal cleanliness products, bath soaps, shampoos and conditioners, hair dyes, hair bleaches, and many other product types.

Safety Information

The Food and Drug Administration (FDA) reviewed the safety of Disodium EDTA and Calcium Disodium EDTA and approved the use of these ingredients as food preservatives for direct addition to food.

The safety of Disodium EDTA, Calcium Disodium EDTA, Diammonium EDTA, Dipotassium EDTA, EDTA, HEDTA, TEA-EDTA, Tetrasodium EDTA, Tripotassium EDTA and Trisodium HEDTA was assessed by the Cosmetic Ingredient Review (CIR) Expert Panel. The CIR Expert Panel evaluated the scientific data and concluded that Disodium EDTA and related ingredients were safe as used in cosmetics and personal care products.
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Why is it used in cosmetics and personal care products?

Disodium EDTA and the related ingredients bind to metal ions which inactivates them. The binding of metal ions helps prevent the deterioration of cosmetics and personal care products. It also helps to maintain clarity, protect fragrance compounds, and prevent rancidity.

Scientific facts:

EDTA, also known as edetic acid, and its salts were developed to counteract the effects of hard water and heavy metal ions in the manufacture of textiles. These metal chelators are widely used in cosmetics and personal care products, in food, and in medicines. These ingredients form complexes with calcium, magnesium, and iron, which allows for better foaming and cleaning performance of cosmetics and personal care products. By binding with metal ions, these ingredients prevent the metals from being deposited onto the hair, scalp and skin.

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