Science
Mechanism of Action
Within cosmetic formulations, Trisodium NTA acts as a potent chelating and sequestering agent. It specifically forms complexes with free metal ions, thereby preventing their interaction with other ingredients. This process safeguards the product's aesthetic integrity, extends shelf-life, and optimizes the efficacy of compounds such as surfactants.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Due to severe safety concerns, including carcinogen classifications and a regulatory ban in California, Trisodium NTA is not considered an ingredient suitable for beneficial cosmetic use, thus making 'dusting' irrelevant for perceived skin benefits.
The Formula
Formulation
Stability
Supplied as a crystalline powder, Trisodium NTA dissolves in water, with its dissolution rate influenced by concentration, particle size, temperature, and agitation. It functions effectively across a broad pH range in liquid systems, remaining in the water phase at pH 3.5 or higher.
Safety
Safety Profile
The Scientific Committee on Consumer Safety (SCCS) has determined that Trisodium NTA is unsafe for cosmetic use at a maximum concentration of 5%, classifying it as a Carcinogen Category 2. California has enacted a ban on its use in cosmetics, effective January 1, 2027, citing safety and environmental impact. Multiple international bodies, including IARC (Group 2B), the European Commission (Category 3), the US National Toxicology Program ('reasonably anticipated to be a human carcinogen'), and Health Canada (Group IIIB), also classify NTA as a carcinogen.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to its classification as a carcinogen by multiple authoritative bodies and a complete ban in California for cosmetic use, Trisodium NTA poses unacceptable safety risks and should be entirely avoided in cosmetic formulations.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources