#27. Sunscreen—Safe or Sketchy?

Episode Summary:Get the accurate facts from Dr. Dan behind the safety, efficacy, and future trends of sunscreen. Topics discussed are as follows:Sunscreen introduction, history, and general conceptComponents of sunscreenScience behind sunscreen useSunscreen application, safety, and regulationsEnvironmental concerns regarding sunscreenWhat to look for in a sunscreen?Future outlook and summary Episode References:Sunscreen components and damage to coral reefs: https://www.ncbi.nlm.nih.gov/pubmed/30484882 Sunscreen chemicals in the bloodstream: https://jamanetwork.com/journals/jama/article-abstract/2733085Reduced risk of skin cancer by using sunscreen: https://www.ncbi.nlm.nih.gov/pubmed/30027280Most people don’t wear sunscreen despite knowing its benefits: https://www.ncbi.nlm.nih.gov/pubmed/30009555Sunscreen can reduce melasma: https://www.ncbi.nlm.nih.gov/pubmed/31033184Sunscreen can prevent DNA damage: https://www.ncbi.nlm.nih.gov/pubmed/29944164Application of sunscreen can prevent the immune system from being depressed by UV rays: https://www.ncbi.nlm.nih.gov/pubmed/30307614Sunscreens in pill form are not effective: https://www.fda.gov/news-events/press-announcements/statement-fda-commissioner-scott-gottlieb-md-new-fda-actions-keep-consumers-safe-harmful-effects-sunConsecutive double application of sunscreen is beneficial: https://www.ncbi.nlm.nih.gov/pubmed/29590142Sunscreen use does not cause a deficiency in Vitamin D: https://www.ncbi.nlm.nih.gov/pubmed/31069788Zinc oxide and titanium dioxide have the generally recognized as safe and effective (GRASE) designation: https://jamanetwork.com/journals/jama/fullarticle/2733084Titanium and zinc oxides don’t damage coral reefs: https://www.ncbi.nlm.nih.gov/pubmed/29801220Melatonin and pumpkin seed oil can increase effectiveness of sunscreens: https://www.ncbi.nlm.nih.gov/pubmed/30414837Microsporine-like amino acids (MAAs) are new sunscreen ingredients with big potential: https://www.ncbi.nlm.nih.gov/pubmed/29304277Meadowfoam seed oil is another potential new sunscreen ingredient: https://www.ncbi.nlm.nih.gov/pubmed/29867483