Tetrasodium Iminodisuccinate ●
TL;DR. This ingredient is a chelating agent that binds metal ions, helping protect formulas from discoloration, rancidity, clouding, and preservative interference.
What does Tetrasodium Iminodisuccinate do in a cosmetic formula?
This ingredient is a chelating agent that binds metal ions, helping protect formulas from discoloration, rancidity, clouding, and preservative interference.
Is Tetrasodium Iminodisuccinate clean?
It is generally well-tolerated and has a strong clean-beauty profile because it is used at low levels and is not a fragrance allergen or common sensitizer. The main caveat is that it is synthetically made, although it is often used as a lower-persistence alternative to older chelators such as EDTA.
Is Tetrasodium Iminodisuccinate sustainable?
This material is typically made through synthetic chemistry, often from petrochemical feedstocks, rather than direct plant sourcing. Its sustainability strength is ready biodegradability and low environmental persistence compared with many conventional chelating agents.
Is Tetrasodium Iminodisuccinate COSMOS-approved?
It is permitted in COSMOS-certified natural and organic formulas when used for its chelating function. From a Green Chemistry perspective, its biodegradability and low-use-level performance are positives, while non-renewable feedstock sourcing is the main limitation.
How does Tetrasodium Iminodisuccinate work chemically?
The molecule is an aminopolycarboxylate tetra-sodium salt with multiple carboxylate groups that complex calcium, magnesium, iron, and copper ions in water-based systems. Typical use levels are about 0.05% to 0.5%, and it is broadly compatible across personal-care pH ranges, where it can improve stability, color retention, and preservative robustness.
Last updated 2026-05-13