Using sunscreen is the next best protection against skin cancer besides staying out of the sun altogether. Applying sunscreen, especially to your face, is something you should be doing every day, all year long. Finding the right sunscreen is equally as important for your skincare and health.

Chemical Sunscreen vs. Physical Sunscreen

A sunscreen is a compound (or lotion) that uses agents to block, deflect or reflect the sun’s rays. To be effective, it is recommended by Penn Medicine that all sunscreens be freely applied (at least one ounce for the entire body) to all exposed areas of the body, at least 15 minutes before going outside.

Chemical sunscreens use up to a dozen ingredients that, when applied, are absorbed in the top layer of the skin. They react with the skin to absorb UV rays and convert them into energy before they can harm the skin.

Chemical sunscreens aren’t as thick as physical ones. They are often used in sunscreens specifically made for the face as well as those found in spray bottles. Since chemical sunscreens need to be absorbed into the skin, they must be applied at least 20 to 30 minutes before heading outdoors.

Physical sunscreens, sometimes called “natural or mineral” sunscreens, include two ingredients: zinc oxide and titanium dioxide. Together, these ingredients sit on top of the skin and deflect or reflect the sun’s rays.

Physical sunscreens act more like a shield, while chemical sunscreens are absorbed into the skin. Both ingredients work well to protect from UVA and UVB (broad spectrum) rays. Since physical sunscreens are thicker, they can leave a white cast on the skin. Think of the old commercials and movies where the “nerdy” guy had thick sunscreen all over his nose.

Which Sunscreen is Right For You?

People with sensitive skin, especially young children, should use a physical/mineral sunscreen since those ingredients are milder. Those with darker skin may opt for a chemical sunscreen since they don’t leave a white cast.

According to Dr. Percec, “A chemical sunscreen really just protects against UB – the burning rays. In two hours that’s degraded by the sun. The mineral block [physical sunscreen] is the much better block because it protects against both UVA and UVP.”

Both types of sunscreen provide adequate protection. Your personal preference may help you decide what type of sunscreen is right for you.

Finding The Right Sunscreen For You in Maryland

If you have questions regarding the best sunscreen and skin care for you, contact us today to schedule an appointment!

Bowie Internal Medicine is committed to providing information and treating any conditions you may have, as well as preventing further health complications through preventative care.