TRISODIUM NTA ●
TL;DR. This ingredient is a chelating agent that binds metal ions in water-based formulas. It helps improve clarity, color stability, preservative performance, and hard-water performance.
What does TRISODIUM NTA do in a cosmetic formula?
This ingredient is a chelating agent that binds metal ions in water-based formulas. It helps improve clarity, color stability, preservative performance, and hard-water performance.
Is TRISODIUM NTA clean?
This ingredient has significant clean-standard friction because it is commonly listed on restricted lists due to carcinogenicity classification concerns. It is not considered a low-concern chelator in beauty frameworks, even though skin exposure in finished formulas would typically be low.
Is TRISODIUM NTA sustainable?
This material is synthetically produced, generally from petrochemical or industrial chemical feedstocks. It is biodegradable under aerobic conditions, but its strong metal-binding behavior can increase metal mobility in wastewater systems.
Is TRISODIUM NTA COSMOS-approved?
This ingredient is not permitted under COSMOS organic or COSMOS natural standards. Its restricted-list status and synthetic production route place it behind newer biodegradable chelators that align better with Green Chemistry preferences.
How does TRISODIUM NTA work chemically?
The molecule is a small aminopolycarboxylate chelator with three carboxylate arms and sodium counterions, giving it strong affinity for calcium, magnesium, iron, and copper ions. When used, levels are usually low, often around 0.05% to 0.2%, and performance is strongest when the carboxylate groups are ionized in mildly acidic to alkaline aqueous systems.
Last updated 2026-08-17