Titanium dioxide (TiO₂) comes in two main grades: pigment-grade and nano-grade. Pigment-grade TiO₂ features larger particles that enhance opacity and brightness, making it ideal for paints and coatings. In contrast, nano-grade TiO₂ consists of much smaller particles that excel at UV protection, perfect for sunscreens and self-cleaning surfaces. Understanding the differences between these two grades is crucial for selecting the right type of TiO₂ for specific applications, whether enhancing color in paints or providing effective sun defense without a white cast on the skin. This guide explores their properties, applications, and safety considerations to help you make informed choices about titanium dioxide products.