Tetrasodium EDTA: what it is in skincare
⏱ 1 min read
⚡ Quick answer: A chelator that binds trace metals in the water to help keep a formula stable and effective.
A chelator that binds trace metals in the water to help keep a formula stable and effective.
What it does
Function: chelator. Chelators bind stray metal ions so formulas stay stable and effective for longer.
How to spot it on a label
On a Korean product's INCI list, look for Tetrasodium EDTA. Ingredients are listed high-to-low by amount, so its position hints at how much is in the formula. See all chelators →
Explore more K-beauty guides → ⏭ Up next🔗 Trisodium Ethylenediamine Disuccinate: what it is in skincare✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-08.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.