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Summary: Sunscreen protects the skin by preventing redness to occur while also protecting it from the long ultraviolet A rays. Find sunscreen that protects from both UVA and UVB rays with information from a practicing dermatologist in this free video on skin care.
Dr. Loretta Ciraldo, the author of the book "Six Weeks to Sensational Skin", is a board-certified dermatologist in Miami, Fla., who has made numerous appearances on television shows,...read more
"Hi, this is Dr. Loretta Ciraldo from drloretta.com; Board Certified Dermatologist and Author of Six Weeks To Sensational Skin. Let's talk a little bit about how sunscreen protects your skin and it's very important for you to remember that what sunscreen does is it allows you to stay out in the sun for a longer period of time before you'll become red than if you didn't have the sunscreen on. So for instance, if you buy a sunscreen that's SPF15, you can stay out fifteen times longer if you have that sunscreen on, before you'll see the redness from what we called the ultraviolet B or sunburn rays. But the other very important thing that sunscreen should be doing for you is to protect you from the long wavelength or ultraviolet A rays and what I love you to do is make sure you that the product that you have at home or what you go to buy at a store or your doctor's office says UVA/UVB protection. For the very best UVA protection, we Dermatologists like you to buy something with zinc oxide or titanium dioxide which are wonderful UVA protectors and the best of luck to you."
eHow Article: How Does Sunscreen Protect Your Skin?