As we spend more time outside, it’s important to remember to protect our skin from the sun’s rays. While we know sunscreen is needed, it’s also important to know how to select the right sunscreen. Which chemicals in sunscreens should we avoid? How are manufacturers ensuring their products are safe and effective? And what ingredients provide the best protection against overexposure to the sun? We spoke to David Andrews, PhD, deputy director of investigations and a senior scientist at Environmental Working Group (EWG), about what to look for when buying a protective sunscreen, how to minimize our risk to harmful exposures, a step-by-step approach to protecting our skin, and EWG’s handy sunscreen guide. Transcript Neha Pathak, MD, FACP, DipABLM: Welcome to the WebMD Health Discovered Podcast. I'm Dr Neha Pathak, WebMD's Chief Physician Editor for Health and Lifestyle Medicine. Even though we usually associate summertime with sunscreen, the truth is we need sun protection all year long. In today's episode, we're going to focus on all things sunscreen and sun protection. What are the safest steps to protecting ourselves and our skin? How do we make sense of all the labels, SPF, broad spectrum, UVA, UVB, chemical, mineral, and how can we be sure that we're using the safest and most effective products?   To guide us through this topic is our guest, Dr David Andrews. Dr Andrews is Deputy Director of Investigations and a Senior Scientist at Environmental Working Group. His work focuses on finding ways to protect public health by educating consumers and driving change to government policies and regulations. Dr Andrews has been researching sunscreens for more than 15 years and has published a peer reviewed study on sunscreens with EWG colleagues and a book chapter with researchers in Australia. Welcome to the WebMD Health Discovered podcast, Dr Andrews.   David Andrews, PhD: It’s a pleasure to speak with you today. Pathak: Before we jump into our conversation, I'd love to ask about your own personal health discovery, your aha moment around the work that you do specifically around sunscreens.   Andrews: I've actually been at EWG for just over 15 years now. My oldest just turned 16. So, I also have a few kids and know their response to sunscreen, some positive and some negative. What stood out to me was when I started researching the efficacy of sunscreens. In particular, I'm coming at sunscreen and sunscreen use from the perspective of really long term skin damage and increased skin cancer risk. What really stood out is kind of the lack of scientific knowledge still on what exactly causes in particular increased melanoma risk, and that linkage to sunscreens and some of the uncertainty that has enabled what is somewhat subpar sunscreens in terms of providing UVA protection. So providing protection from a portion of the spectrum.   Part of that is really a reflection of how sunscreen use has changed incredibly over the decades and the initial products were really just to prevent sunburn. In my family growing up we referred to them as sunburn creams. But it was really that change in use and kind of the lack of really strong protection in the UVA region that stood out to me. One piece that really stood out is when the FDA published what was more or less their more recent change to sunscreen regulations in 2011. They discussed how sunscreen use was associated with reduced risk of skin damage and skin harm when you use the products because it reduced the amount of UV rays that hit your skin. But the FDA also noted that the few studies that had looked at sunscreen users found that they actually changed their behavior and spent more time in the sun and were actually getting slightly increased sun damage. There's this juxtaposition of we know UV rays and sun rays can cause skin harm and sunscreens reduce the amount of those UV rays. But if we're using sunscreen and changing our behavior, then we may actually be n