Detailed answer

Chemical sunscreens work by absorbing UV rays and converting them into heat, while physical sunscreens create a protective barrier on the skin to reflect UV rays. Chemical sunscreens usually contain ingredients such as oxybenzone, avobenzone, or octinoxate, while physical sunscreens use mineral ingredients like zinc oxide or titanium dioxide. Chemical sunscreens are often preferred for their lightweight and invisible finish, while physical sunscreens are known for being gentler on sensitive skin and providing immediate protection. It's important to choose a sunscreen with broad-spectrum protection, which means it protects against both UVA and UVB rays, and to reapply it every two hours, especially when exposed to sun for long durations.