Is there any harm to humans or pets?

Titanium dioxide is completely harmless to humans, as it is widely used in cosmetics and sunscreens that touch the skin directly, and is even approved as a food additive. The nanoeZONE solution (undiluted) consists of three components: titanium dioxide, water, and alcohol. Water and alcohol evaporate rapidly during application, leaving only titanium dioxide on the surface. Our products have passed acute oral toxicity, mutagenicity, primary skin irritation, and skin sensitization tests with favorable results, and confirm the absence of hazardous substances such as lead, mercury, and cadmium. Test reports are available in our Evidence Collection.