titanium dioxide nanoparticles

Titanium dioxide nanoparticles are very tiny particles of a mineral called titanium dioxide, used widely in products like sunscreens, paints, and cosmetics. Because of their small size—far smaller than a human hair—they can reflect and scatter light effectively, such as UV rays, providing protection from sun damage. These nanoparticles also make products more opaque and durable. While considered safe for many uses, ongoing research examines their potential health and environmental impacts due to their small size, which can sometimes penetrate biological tissues. Overall, they are valued for their stability, whiteness, and UV-blocking properties in various applications.