Your sun protection is only as strong as your highest SPF. Sunscreen works by limiting the number of UV rays that hit your skin. Your foundation has SPF But you have a third layer on. How effective is your sunscreen? Those spots have no protection and are fair game for UV rays. But if you slather on a second SPF product, you have more chances of covering every little nook and cranny.
Not all UV filters work well together. Cosmetic chemists know all kinds of tricks to make UV filters get along. For example, by coating them so they give you the best protection without getting too close to each other.
It may help, but unless you know more about the formulations and how UV filters interact with one another, you may reduce — rather than increase — sun protection. Kassardjian agreed with Sarkar, and added that you'll also be less likely to miss a spot on your face like your neck, your ears, or your eyelids if you apply multiple SPF products.
Kassardjian explained that it's best to use actual sunscreen with a minimum SPF of 30 , as relying solely on SPF in makeup can cause trouble. Chemical blockers are generally thinner, absorbed more quickly, and degraded faster with sun exposure.
Reapply every two hours if you're getting wet or sweating. To get the most out of sunscreen application, Kassardjian told INSIDER that you should apply it onto clean, dry skin 30 minutes prior to going outside.
Sarkar added that you should reapply every two hours if you're sweating or every four to six hours if you're not. Kassardjian also said that powder sunscreen is an effective alternative for reapplication if someone has makeup on and is unable to wash their face before reapplying sunscreen. So, no, layering sunscreen won't help you achieve a super high SPF number. But it will help you get enough actual sunscreen on your face — something we all could benefit from — which will protect you from sun damage.
In the market for a new broad-spectrum sunscreen? Check out our favorites here. Just keep in mind that SPF numbers don't compound, so adding two sunscreens with an SPF 45 won't double-up your protection power. Instead, expect to get no more protection than the lowest SPF number listed on the bottles—or potentially lower if you mix two sunscreens with chemical ingredients. So, what's the verdict?
Avoid mixing your sunscreens if possible, especially if those products contain chemical ingredients. It's the only way to ensure you're maintaining the careful chemical balance inside each bottle and getting the level of protection that the manufacturer promises.
The safest bet is to pick up a fresh bottle—you'll never regret having another to throw in a new bag or lend to a friend. View all posts. Can You Remove a Mole at Home? What Is Slugging in Skin Care? Life In The Sun Empower yourself to live freely under the sun. Life In The Sun. Chemical vs. Physical Sunscreen Ingredients Many sunscreens contain at least some combination of two ingredient types : Physical sunscreen ingredients include zinc oxide and titanium dioxide.
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