Detailed answer

Chemical sunscreens work by using chemicals such as avobenzone, oxybenzone, and octinoxate to absorb UV rays and convert them into heat, which is then released from the skin. These sunscreens typically have a thinner consistency and are easier to apply compared to physical sunscreens. However, they may need to be applied 20-30 minutes before sun exposure to allow time for the ingredients to become effective. It is also important to note that some chemical sunscreen ingredients have raised concerns regarding their safety and potential for causing skin irritation or allergic reactions. As with any sunscreen, it is best to choose one that suits your skin type and personal preferences, and to reapply it every few hours when exposed to the sun.