Toothpastes
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2025-08-14 15:45
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Technical Specifications:(Standard:Q/SNBJ1-2012)
Currently, titanium dioxide as a food additive is classified as GRAS, or “generally recognized as safe.”
The cytotoxic effect was tested through the colorimetric assay employing 3′-[1-[(phenylamino) -carbonyl]−3,4-tetrazolium]-bis(4‑methoxy-6-nitro) benzene-sulfonic acid hydrate (XTT) by reading the absorbance at 490 nm after 3 h of incubation post treatment [28]. The absorbance is proportional to the metabolic rate of viable (live) cells.