What is a benefit of using broad-spectrum sunscreen?

Using broad-spectrum sunscreen is essential because it protects against both UVA and UVB rays. UVA rays are known to contribute to skin aging and can penetrate the skin more deeply, potentially leading to skin cancers. UVB rays, on the other hand, are primarily responsible for causing sunburn and also play a significant role in developing skin cancer. By offering protection against both types of ultraviolet radiation, broad-spectrum sunscreens provide comprehensive defense for the skin, reducing the risk of harmful effects from sun exposure such as premature aging and the development of skin cancer.

In contrast, other options presented do not accurately reflect the specific benefits of broad-spectrum sunscreens. For example, while reapplication is important for maintaining sun protection, broad-spectrum sunscreens do not eliminate the need to reapply. Similarly, broad-spectrum sunscreen is not specifically designed to enhance skin hydration or tanning efficiency. Its primary role is to guard against UV radiation.