Tetrasodium EDTA
Tetrasodium EDTA
- Role
- Binds metal ions that could impair the stability or appearance of the product.
- Catalog formulas
- 3
- Type
- Stability
- Verified
- 06.11.2026
What does this ingredient do in an antiperspirant?
This sodium salt of ethylenediaminetetraacetic acid locks metal ions into strong complexes. That helps preserve the color, odor and texture of the formula.
Part of a system, not a label in isolation
It appears in small amounts in water-based roll-ons. It does not reduce sweating and plays only a stabilizing role in the formula.
In 2002 the CIR found EDTA and its salts safe in cosmetics. Typical concentrations of tetrasodium EDTA are up to 0.3%.
The CIR found no skin absorption of EDTA salts in clinical tests, but warns that EDTA can increase the penetration of some other substances.
It is not the same as Disodium EDTA: the tetrasodium salt carries more sodium atoms and its solution is more alkaline.
Products containing Tetrasodium EDTA
Links are based on the complete published INCI list for the exact product version.
Sources
The conclusions apply to the stated conditions and jurisdictions, not automatically to every concentration or product.
- COSMILE Europe (CosIng data): Tetrasodium EDTA Supports: function
- CIR: Final report on the safety assessment of EDTA and its salts (2002) Supports: safety assessment, effect on penetration