Dr. Steinman explains concerns regarding sunscreen and vitamin D.
There is a concern among research scientists that if you wear a sunscreen everyday that you are going to block out the ultraviolet light and your body needs ultraviolet light striking the skin to make vitamin D that you need for strong bones and for certain other immune functions in your skin. It is now felt that 10 minutes or less of morning sunlight is more than enough to give you the amount of sunlight you need to make the vitamin D. All the worries about the vitamin D and the bad effect you can get using sunscreen were in mice and in rats. They were done theoretically and there is no hard evidence that wearing a sunscreen everyday is going to cause any significant harm to the vitamin D levels in your system.
About Dr. Howard Steinman, M.D.:
Dr. Howard Steinman is the first and only Dermatologist in South San Diego County fully certified by the American Board of Cosmetic Surgery in all aspects of cosmetic surgery and by the American Board of Dermatology in all aspects of Dermatology. He is one of the very few Board-Certified Dermatologists with formal residency and fellowship training in both Cosmetic Surgery and Advanced Surgical Dermatology. Dr. Steinman is the Medical Director of MD Skin Esthetics and Spa, a comprehensive Dermatology and Cosmetic Surgery center located in Chula Vista, California.