Which mineral is commonly used in sunscreens to physically block UV rays?

Zinc oxide is a mineral that is widely recognized for its effectiveness in sunscreens due to its ability to physically block and reflect ultraviolet (UV) rays. It provides broad-spectrum protection, shielding the skin from both UVA and UVB radiation. This quality makes zinc oxide a preferred ingredient in many formulations, particularly for sensitive skin types and products labeled as mineral or physical sunscreens.

Additionally, zinc oxide is known for its anti-inflammatory properties, which can help soothe irritated skin and reduce redness, further enhancing the protective benefits of sunscreens that incorporate it. Given its effectiveness and safety profile, it is a reliable choice for preventing sunburn and long-term skin damage associated with UV exposure. This demonstrates why it is the correct answer to the question about minerals used in sunscreens to block UV rays.