![]() ![]() ![]() “I think where powder sunscreen is great is to touch up your sunscreen over your makeup”īut the main qualm derms have with powder sunscreen is that it shouldn’t replace the “real” thing. Others have antioxidants to “mop up any damage that gets through your sunscreen, like an insurance policy for your skin,” says Poelman, who recommends patients apply an antioxidant serum under their sunscreen. Some are even spiked with iron oxides, which can protect against the blue light emitted by our electronic devices. ![]() Most powder sunscreens contain mineral filters like zinc oxide or titanium dioxide, which effectively deflect rays. With powders, it may not be as easy to get an even application, says Poelman. Here’s the thing: Cream or lotion formulations are specifically designed to provide uniform distribution of sun filters to give you the best possible protection. “The jury is still out in terms of the efficacy of coverage.” Susan Poelman, a certified dermatologist based in Calgary. This is where powder sunscreen comes in, offering to weightlessly drape your face in an invisible sun shield. What ever will you do? Certainly not smear lotion all over your glowy summer glam! But it’s been two hours since you applied your SPF and you’re due for a re-up. You’ve meticulously swirled your cream blush, tapped your cheekbones with highlighter and have maybe even drawn on a smattering of adorable freckles. #DOES SUNSCREEN EXPIRE SKIN#This summer, be kind to your skin by seeking out shade, wearing protective clothing, and applying SPF you know will work as intended.It’s the age-old dilemma. That means a 5- or 6-ounce bottle could be gone after just one day in the sun! The American Academy of Dermatology recommends adults apply about 1 ounce (about the size of a shot glass) of a broad-spectrum, water-resistant sunscreen at least SPF 30 or higher every 2 hours when you’re outdoors. "If a bottle of sunscreen is lasting you and your family longer than its known effective life, it makes me concerned that you may not be applying the sunscreen properly," Dr. Many times, the real problem isn't that your sunscreen has expired - it's that you're not using enough. Mineral sunscreens that use titanium dioxide and zinc oxide act as physical barriers, so there’s a change they remain stable for longer, but it’s not worth the risk. "If you use it, there might be some efficacy, but the SPF might not be as high," she says. Exposure to sunlight and heat - like when you leave a bottle in your beach bag, on your pool towel, or simply in a hot car - alters the formula on a molecular level. "Chemical sunscreens work on the principle of absorbing and dissipating UV rays and they can chemically change in that process," Dr. Changes in color and consistency can also indicate it's time to go, but a good rule of thumb is to toss out any opened sunscreen a year or older, says Birnur Aral, Ph.D., Director of the Health, Beauty & Environmental Sciences Lab at the Good Housekeeping Institute. If the expiration date has rubbed off, there are other signs your sunscreen is probably past its prime. Essentially, each bottle must have an expiration date, unless lab testing has shown it works as labeled for at least three years. ![]() Golda, M.D., a board-certified dermatologist with the University of Missouri School of Medicine. The FDA requires sunscreen manufacturers to follow the same expiration labeling requirements as over-the-counter medications, says Nicholas J. Luckily, there's an easy way to figure out if your lotion is no good. "This leads to less protection, which means more sunburns, a higher risk of skin cancer, and an increase in sun damage." But that's not all: That old bottle you've opened dozens of times before may also harbor more bacteria, which can lead to skin breakouts, adds Dr. "You should not use expired sunscreen because it becomes less effective," says Raman Madan, M.D., a board-certified dermatologist at Huntington Hospital. What’s leftover from last summer likely isn’t as effective as you expect it to be - and the truth is using it past the expiration date can put your skin at risk. Before you go for that walk outside or head to your backyard for some sun, don’t forget to stock up on new sunscreen. Temps are warming up and after spending weeks under stay-at-home orders, everyone is eager to get outside for some fresh air.
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