The Truth About Sunblock: Understanding SPF and Protection Against UVA and UVB Rays

As a dermatologist, I am often asked about the effectiveness of sunblock in protecting against both UVA and UVB rays. With so many options on the market, it can be confusing to know which one is best for your skin. In this article, I will break down the basics of sunblock SPF and explain the difference between UVA and UVB rays. I will also discuss the importance of choosing a broad spectrum sunblock with a high SPF and regularly reapplying it for maximum protection.