Description
Titanium Dioxide (nano) is an inorganic metal oxide corresponding to the nanoparticulate form of titanium dioxide.
This ingredient is regulated in Annex VI, reference 27a, with a maximum authorized concentration of "25%". The regulations state that "In case of combined use of Titanium Dioxide and Titanium Dioxide (nano), the sum shall not exceed the limit of 25%." Only nanomaterials with purity ≥ 99%, rutile form or rutile with up to 5% anatase, median particle size ≥ 30 nm, aspect ratio of 1 to 4.5, volume-specific surface area ≤ 460 m²/cm³, photocatalytic activity ≤ 10% relative to the uncoated reference material and photostability in the final formulation are admitted, with specific coatings listed (including Silica, Alumina, Stearic Acid, Dimethicone and specified combinations). The literal labelling warning states: "Not to be used in applications that may lead to exposure of the end-user's lungs by inhalation." For facial products containing the combination of Alumina and Manganese Dioxide: "Not to be used on the lips."
The information presented is for technical reference only and does not constitute a recommendation for use or an efficacy claim.