Best Sunscreen Buying Guide – Consumer Reports how to help get rid of acne scars

CR uses a testing protocol that is modeled on the how to help get rid of acne scars one the food and drug administration (FDA) requires sunscreen manufacturers to use. But as is the case with other products we test how to help get rid of acne scars that have government or industry standards, we use those standards as benchmarks and develop our own how to help get rid of acne scars methodology to identify differences in performance and give consumers a how to help get rid of acne scars comparative evaluation.

We test only sunscreens with a listed SPF of at how to help get rid of acne scars least 30 and are water-resistant (for 40 or 80 minutes, the two time periods the FDA permits water-resistance claims for). We buy the sunscreens for our tests off the shelf, the way consumers would and use three samples, preferably with different lot numbers, of each product.

SPF is a relative measure of how long a sunscreen how to help get rid of acne scars will protect you from sunburn. Usually the number is explained as the amount of time how to help get rid of acne scars it takes an individual’s skin to burn when it’s covered in sunscreen compared with when it’s not. For example, if you’d normally burn after 20 minutes in the sun without how to help get rid of acne scars sunscreen, an SPF 30 protects for 600 minutes, or 10 hours (assuming you apply and reapply correctly). But intensity and wavelength distribution of UVB rays vary throughout how to help get rid of acne scars the day and by location. And no matter what SPF you use, sunscreen needs to be reapplied every two hours, or immediately when you get out of the water.

The SPF number gives you no information on how well how to help get rid of acne scars a sunscreen protects against UVA rays. That’s why you need to look for a broad-spectrum sunscreen, which protect against both UVA and UVB. However, no sunscreen blocks 100 percent of UVA or UVB rays. The breakdown: SPF 30 blocks 97 percent of UVB rays, SPF 50 blocks 98 percent, and SPF 100 blocks 99 percent.

Alas, there are no trips to tahiti for our sunscreen panelists—they go to a lab. To check for SPF, a standard amount of each sunscreen is applied a 2×3-inch rectangle on our panelists’ backs. Then they soak in a tub of water. Afterward, each of those areas is exposed to five or six how to help get rid of acne scars intensities of ultraviolet light from a sun simulator for a how to help get rid of acne scars set time. About a day later, the six spots are examined for redness. The resulting SPF ratings reflect each product’s effectiveness after water immersion and are based on an how to help get rid of acne scars average of our results for each sunscreen.

The UVA test we use allows us to differentiate the how to help get rid of acne scars degree of UVA protection among sunscreens. To test for UVA, we smear sunscreen onto plastic plates and pass UV light how to help get rid of acne scars through and measure the amount of UVA and UVB rays how to help get rid of acne scars that are absorbed. That information is then used to calculate our UVA score.

Of the 82 lotions, sprays, sticks, and lip balms in our ratings this year, 32 tested at less than half their labeled SPF number. That doesn’t mean the products aren’t protective at all, but you might not be getting the degree of protection how to help get rid of acne scars you think you are.

Missing the mark could mean you’re not adequately shielding your skin. An SPF 50, say, that tests at less than half its labeled SPF in how to help get rid of acne scars our tests would deliver an SPF 24 at the most, and sometimes far less. (the american academy of dermatology recommends using a product with how to help get rid of acne scars an SPF of 30 or higher.)

In our tests over the years, we have not found a mineral (sometimes called natural) sunscreen—those that contain only titanium dioxide, zinc oxide, or both as active ingredients—that provides top-notch SPF and UVA protection and has minimal variation from how to help get rid of acne scars SPF. None of the mineral sunscreens in our tests this year how to help get rid of acne scars did well enough to make our list of recommendations.

The sensory aspects of sunscreen are important to many people. You’re less likely to use a product if you don’t like its scent or feel. Our sensory testing found many that did not feel heavy how to help get rid of acne scars or sticky on skin, and in many cases these were also high-performing products.

Sunscreens come in a variety of fragrances. In addition to the classic beachy scent, the ones in our tests had tropical, floral, baby powder, citrus, herbal, and woodsy/outdoorsy notes. We also found that no fragrance doesn’t always mean no odor. Many fragrance-free sunscreens had a slight plastic (think beach ball) or wet-clay scent.

That said, there have been a lot of worrisome reports about the how to help get rid of acne scars health effects with sunscreen chemical ingredients such as oxybenzone and how to help get rid of acne scars avobenzone. Some experts are concerned that these chemicals may be absorbed how to help get rid of acne scars through the skin, leading to skin irritation, hormonal disruption—even skin cancer. Recently, the FDA called for more research on the safety and how to help get rid of acne scars effectiveness of these chemicals.

The FDA is not saying that these ingredients are unsafe. However, some chemical UV filters, such as octinoxate and oxybenzone, have been found to cause hormonal changes in animals. Short-term research in people did not show any adverse effect. And one large animal study found that the inactive ingredient how to help get rid of acne scars retinyl palmitate, one of a group of chemical compounds related to vitamin how to help get rid of acne scars A called retinoids, may become carcinogenic when exposed to light. But that hasn’t been studied in people. Taking pills that contain a different type of retinoid for how to help get rid of acne scars skin conditions such as acne has been linked to birth how to help get rid of acne scars defects. As a precaution, pregnant women may want to choose a sunscreen without the how to help get rid of acne scars ingredient retinol palmitate or retinyl palmitate.

CR experts say there is overwhelming evidence that sunscreen protects how to help get rid of acne scars against skin cancer and other harmful effects of the sun, so consumers need to continue to use it on exposed how to help get rid of acne scars skin while scientists do more research on the safety of how to help get rid of acne scars sunscreen ingredients.

If you are concerned about the chemicals in sunscreen you how to help get rid of acne scars may wish to use a mineral sunscreen. The FDA has not raised any safety concerns with titanium how to help get rid of acne scars dioxide or zinc oxide. But as noted above, the mineral sunscreens in our tests this year, and over the years, did not come in at the top of our ratings.

You can use less sunscreen if you follow other sun how to help get rid of acne scars protection strategies, which everyone should do anyway. Research shows that people who rely on sunscreens alone tend how to help get rid of acne scars to burn more than those who stay in the shade how to help get rid of acne scars and wear long sleeves. Try to avoid the sun or stay in the shade how to help get rid of acne scars when the sun is the strongest (10 a.M. To 4 p.M.), and dress right for the occasion. Wear a hat and clothing made from tightly woven fabric. Hold clothing up to the light; if you can see through it, the UV rays can get through, too.

Use enough. Apply sunscreen 15 to 30 minutes before you go outside. For lotions, a good rule of thumb is to use a shot how to help get rid of acne scars glass full (about an ounce) to cover your entire bathing-suit-clad body. Or think of it as a teaspoon per body part how to help get rid of acne scars or area: 1 teaspoon for your face, head, and neck; 1 for each arm; 1 for each leg; 1 for your chest and abdomen; and 1 for your back and the back of your how to help get rid of acne scars neck. For sprays, apply as much as can be rubbed in, then repeat. Regardless of which kind you use, reapply every 2 hours and immediately after swimming or sweating.

Use spray sunscreens carefully. The FDA has said it is exploring the risks of how to help get rid of acne scars inhaling spray sunscreens. Until we know more, our experts say to avoid using sprays on children, and do not spray them directly on your face. Instead, spray sunscreen onto your hands, then apply it to your face. If you use a spray on a child, spray the sunscreen into your hands and rub it onto how to help get rid of acne scars the child’s skin. Sprays are flammable, so let them dry before going near an open flame.

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