The key difference between these types of sunscreens is how they block rays.
When choosing a sunscreen, you have a few decisions to make.
First, are you slathering up with a physical or chemical sunscreen?
The key difference between these types of sunscreens lies in how they block rays. Physical (mineral) sunscreens sit on the surface of your skin and act as a shield, while chemical sunscreens sink into your skin and act more like a sponge.
Physical sunscreens, more commonly known as mineral sunscreens, work by creating a physical barrier on the skin that shields it from the sun’s rays.
These sunscreens deliver broad-spectrum protection by reflecting UV radiation away from your skin. They also help ward off UVA-related skin damage, including hyperpigmentation and wrinkles.
Mineral sunscreens can also help block UVA rays that come through windows, which can cause pigmentation and breakdown of collagen. That’s why it’s important to wear sunscreen every day, even if you don’t plan to go outside.
Most mineral sunscreens are formulated with zinc oxide and titanium oxide, two ingredients recognized as safe and effective by the
Micronized zinc oxide or titanium sunscreens — or those with very small particles — work much like chemical sunscreens by
All benefits, for sure, but mineral sunscreens do have one downside: They may be chalky, difficult to spread, and tend to leave behind a noticeable white cast to the skin.
Mineral sunscreen tip
Avoid a white cast by using a mineral sunscreen that has a tinted zinc oxide.
Mineral sunscreens also aren’t always as water resistant as chemical options, so you may need to reapply more frequently.
Chemical sunscreens don’t sit on the skin or block rays. Instead, they feature active ingredients that absorb UV rays before your skin can soak them up. These chemical UV filters include:
- oxybenzone
- avobenzone
- octisalate
- octocrylene
- homosalate
- octinoxate
Because they’re designed for absorption, chemical sunscreens tend to go on smoothly without feeling sticky or greasy, and they don’t leave the telltale white cast.
Chemical sunscreen tip
People with sensitive skin may experience an unwanted reaction to chemical sunscreen, like redness or inflammation. If you have sensitive skin, you may want to use mineral sunscreen.
When it comes to sunscreen, you have options.
Both physical and chemical sunscreens come with pros and cons, and choosing the right sunscreen might involve some compromise. Whichever you settle on, make sure you don’t skip it. Sunscreen is the best way to reduce your chances of sun-related skin damage.
