对肌肤低刺激性，多半吸附在角质层，高度水溶性，无大量残留机会(取自张丽卿 博客分享)
為有機金屬離子螯合劑(對鈣鎂離子有較強的螯合作用)
因与金属离子螯合，致使细菌不能获得生长发育所必需的微量金属离子，故有抑菌作用，也可作抗菌增效剂。多半用於清潔產品當螯合劑
Prevents ingredients in a formula from binding with trace elements. Safe if used in cosmetics
In skincare, this helps to prevent cosmetic formulations and other personal care products, such as lotions and creams, from deteriorating. Disodium EDTA protects the integrity of skincare products from undergoing unwanted consistency changes, pH changes, odor changes, or texture changes.
https://www.lorealparisusa.com/ingredient-library/disodium-edta.aspx