Sunscreen is important for children because it protects them from sunburns and the UV rays that cause skin cancer. Paying attention to SPF is important when buying sunscreen. SPF measures the sunscreen’s ability to protect your child’s skin from UV rays. According to the CDC, the SPF of the sunscreen you choose should be at least 15. Another way to protect children from the sun is to provide full coverage of your child’s skin. This can include hats, long sleeves, and long pants.