Tetrasodium EDTA

One of the most common synthetic chelators. It can reduce the 'hardness' of water and so is often used in rinse-off products.
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Tetrasodium EDTA


Tetrasodium EDTA can be in any kind of product, but it’s especially common in rinse-off products because it can capture metals that cause "hard" water.

EDTA is a great chelator, but it has been noted to have some bio-accumulation issues in the environment.