The Science of Sunscreen: How Does SPF Work?

Sunscreen is your skin's best defense against the sun's harmful UV rays, but have you ever wondered how it works? At XJ Beauty, we believe that understanding the science behind sunscreen is essential for effective sun protection.

Sun Protection Factor (SPF) is a key term in sunscreen efficacy. SPF measures a product's ability to shield your skin from UVB rays, which are responsible for causing sunburn and increasing the risk of skin cancer.

SPF works by forming a protective barrier on your skin's surface. It contains active ingredients that either absorb, scatter, or reflect the UV radiation. These ingredients prevent UVB rays from penetrating the skin and causing damage.

For example, chemical sunscreens contain organic compounds that absorb UV radiation, while physical sunscreens contain minerals like zinc oxide or titanium dioxide that act as a physical barrier to block UV rays.

To maximize protection, apply sunscreen generously and reapply it every two hours, especially when swimming or sweating.

XJ Beauty offers a range of advanced sunscreens designed with cutting-edge technology to provide effective protection while ensuring a comfortable and cosmetically elegant application. Understanding the science behind SPF empowers you to make informed choices for your skin's health and safety.