Buying guide for最好的sunscreens
Whether you’re young or old, fair skinned or dark complected, you need to wear sunscreen. In fact, everyone but toddlers under six months of age should face each and every day armed with a bottle of skin-loving SPF.
Why is sunscreen so important? The Centers for Disease Control and Prevention (CDC) tells us that skin cancer is the most common form of cancer in the U.S. It is also one of the most preventable forms of cancer.
In addition to staying in the shade, donning a hat and sunglasses, and wearing clothing that deflects UV rays whenever possible, the CDC recommends that you use sunscreen.
Indeed, a “healthy”tanisn’t as healthy as it once seemed, and lots of consumers have become more conscientious about buying and applying sunscreen.
But what is the best sunscreen for you? All formulas are not the same.
在Bestre百度必威下载views上，我们将袖子卷起并挖入防晒空间，评估您在商店（和虚拟）架子上看到的产品，以确定哪种是最好的。
在研究防晒霜时，我们会注意到每种奶油中含有多少SPF。SPFS从15到100不等，尽管没有防晒霜会完全保护您免受阳光的侵害，但即使是SPF15也可以保护您的皮肤免受93％的阳光侵害。
We look for full-spectrum sunscreens that protect skin from both UVA rays and UVB rays.
我们寻找防水40至80分钟的防晒霜，以便消费者在游泳时保持保护。
We think of consumers who swim in the ocean and note whether a sunscreen is reef-safe. Reef-safe sunscreens don’t have harmful chemicals that damage coral reefs.
When shortlisting the best sunscreens, we note which are best for certain skin types, including aging skin, young skin, allergy/rosacea-prone skin, acne-prone skin, dark skin, and dry skin.
评估防晒霜时，我们检查是否在包装上列出了到期日期。防晒霜往往会持续大约三年以来。
We appreciate a bigger sunscreen bottle that allows consumers to purchase a cost-effective sunscreen that lasts an entire season.
We look at the main ingredients in each sunscreen. The best sun-shielding ingredients in organic sunscreens are zinc oxide or titanium dioxide, whereas non-organic sunscreens use oxybenzone.
When researching sunscreen, we find out how well the product resists moisture. Sunscreen shouldn’t run when you sweat.
选择合适的SPF
When you examine a bottle of sunscreen, one of the first things you’ll note is the “SPF” displayed prominently on the label. SPF stands for “sun protection factor,” and it’s vital that you’re aware of which SPF you’re putting on your skin.
从大约93% o SPF 15保护你的皮肤f the sun’s damaging rays.
SPF 30 protects your skin from approximately 97% of the sun’s damaging rays.
SPF 100 protects your skin from approximately 99% of the sun’s damaging rays.
No sunscreen will protect you from 100% of the sun’s damaging rays.
选择防晒霜时，SPF并不是考虑的唯一重要因素。可以说的更重要的是，您选择的乳液是否提供全光谱保护，也称为广谱保护。
See the next section to learn about UVA rays, UVB rays, and why you need a full-spectrum sunscreen to protect you from both.
Expert Tip
It’s true that some brands of makeup – particularly foundations and lip products – advertise sun protection. But don’t rely on these alone unless the SPF is at least 15.
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UVA rays and UVB rays
The best sunscreens protect you from UVA rays and UVB rays, both of which are harmful to health and present in our atmosphere all the time. Interestingly, the outcome of UVA exposure may be slightly different from that of UVB exposure.
UVA射线
The atmosphere is dense with UVA rays, and the average person’s exposure to them over a lifetime is immense. UVA ray exposure ages the skin and may cause or contribute to the development of skin cancer. UVA rays can reach human skin through glass, so you’re not safe from them when sitting inside your car or beside a window. These are the rays emitted by sunlamps in tanning booths, albeit at much higher concentrations than those of the sun.
UVB射线
UVB射线会导致晒伤，并与皮肤癌的发展密切相关。在美国，在早春和中下落之间，UVB射线最为突出。他们没有被认为是通过玻璃穿透或对坐在汽车或建筑物内的人造成危险。但是，这些引起癌症的射线全年都存在。因此，即使外面没有燃烧，也要戴防晒霜。
Don’t forget to protect the delicate skin on your scalp from UV exposure. You can (and should) wear a hat, preferably of the wide-brimmed variety.
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Reef-safe sunscreens
If you want to be environmentally friendly you should definitely look into buying reef-safe sunscreens. These sunscreens don't use specific chemicals that have been proven to damage coral reefs. Whenever you swim in the ocean with sunscreen, a fair amount of it goes into the ocean. Be on the lookout for sunscreens with oxybenzone and octinoxate – those are the main culprits of breaking down the coral.
Did you know?
Some types of clothing have an ultraviolet protection factor, or UPF. For example, a shirt with a UPF of 30 would theoretically protect you from all but 1/30th of UV radiation from the sun.
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Sunscreen water resistance
Several years ago, the FDA did away with the “waterproof” label on sunscreen bottles. Instead, water-resistant sunscreen is now classified in one of the following ways.
如果您要出汗或swimming，戴防水防晒霜。并非所有的防晒霜都具有防水性，因此请注意标签非常重要。
例如，如果您要在游泳池中佩戴防水的防晒霜，那么您最终可能会烧伤，甚至在注意到皮肤上发生了什么之前。
You won't need water-resistant sunscreen for activities likerollerbladingor mountain biking, but unless you want to keep several varieties of sunscreen on hand, you may still want to choose a water-resistant formula.
Did you know?
Most sunscreens contain both chemical and physical components. The chemical ingredients absorb UV rays, and the physical particles reflect UV rays.
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Sunscreen and skin type
Even if you know the SPF and degree of water resistance that you want, you still have some decisions to make about which type of sunscreen is best for you.
衰老的皮肤
Some older people make the mistake of assuming they don’t need sunscreen anymore. This is simply not true. UV exposure at any age can increase your risk of skin cancer, wrinkles, and other damage.
Allergies/rosacea
If you suffer skin reactions due to allergies or rosacea, consider a fragrance-free sunscreen without alcohol.
"The jury is still out on the safety of spray sunscreen. Some people worry that the airborne particles could be hazardous to health. If you are a person with limited mobility, spray-on sunscreen may be a good option for you. Otherwise, consider a lotion, cream, or gel product."
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Acne-prone skin
对于那些会使皮肤长痘,考虑到der a fragrance-free gel sunscreen. The gel contains alcohol, which may be less likely to clog your pores than a cream. However, if you’re currently under medical treatment for your acne, you might prefer a light lotion or cream to avoid over-drying.
Dark skin
If you have dark skin, look for a product that rubs in completely so you don’t end up looking chalky. And don’t make the mistake of assuming that you don’t need sunscreen because your skin is dark; all humans are vulnerable to skin cancer and therefore need sunscreen.
"If you’re currently being treated for acne, protection from the sun is especially important, since your skin may be more sensitive to it during treatment. If you have ever been a skin cancer patient, it is particularly important for you to wear a sunscreen with at least SPF 30 every day."
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Dry skin
如果您的皮肤干燥，请考虑包含羊毛脂或油的防晒霜。其中许多将作为面霜或乳液销售。
Young skin
六个月以下的婴儿不应戴防晒霜。取而代之的是，应该将它们完全排除在阳光之外。但是，一旦孩子达到幼儿，他绝对应该戴防晒霜。一些父母选择避免因“激素触发剂”（例如视网膜棕榈酸酯和氧苯甲）而闻名的成分。相反，这些父母专注于使用含有较重浓度的二氧化钛或氧化锌的公式。
Expert Tip
不要等到您在炽热的阳光下涂防晒霜。出门前15或20分钟将其涂抹，因此它有机会沉入您的皮肤中。在此之后每两个小时重新申请一次。
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Tips
High-SPF sunscreen should be reapplied just as often as lower-SPF sunscreen.Don’t assume that your SPF 100 sunscreen will protect you for more hours than a bottle of SPF 30; it won’t.
六个月大的婴儿应将其拒之门外。防晒霜不是婴儿的安全选择。
查找专门为儿童设计的公式。If you’re looking for a sunscreen for your kids, scan the ingredients list for titanium dioxide and zinc oxide, both of which are thought to be less irritating to young skin.
Avoid storing your sunscreen anywhere it gets hot.Exposure to high heat can break down the ingredients in the lotion, rendering it ineffective. Don’t store it in your car or garage. Instead, keep your sunscreen in a cool, dry place.
FAQ
问：佩戴带有高SPF的防晒霜更好吗？
A.If your goal is to shield your皮肤从有害的紫外线,选择防晒霜with a minimum SPF of 30. To bolster your protection, you could go even higher than that; there are many bottles with an SPF of 50, and you’ll even see some with an SPF of 100. Regardless of which SPF you select, however, bear in mind that the lotion must be reapplied every few hours to remain effective.
Q. I can’t find an expiration date on my bottle of sunscreen. Is it safe to use?
A.Sunscreen is thought to last no more than three years from the date of its manufacture. (The FDA mandates that all sunscreens retain their effectiveness for at least this long.) If you’re not sure how old your bottle is – or whether it’s been exposed to high temperatures that could degrade the formula – it’s probably best to replace it.
问：我的医生说我的维生素D。我应该停止戴防晒霜吗？
A.佩戴防晒霜确实可以降低皮肤生产维生素D的能力。但是，将一种健康危害（低维生素D）换成另一种健康危害（暴露于有害的紫外线）不一定是一个好主意。与您的医生谈谈最适合您的行动方案。必威体育娱乐app您的健康医生可能会建议dietary supplementsor an increase in foods rich in vitamin D, such as fatty fish and dairy products.
Q. I have seen sunscreen with SPF 2. What good is such a low SPF?
A.Sunscreen with a low SPF may help protect you from getting a sunburn, but it certainly won’t protect you from premature aging or skin cancer. In fact, all sunscreens sold in the U.S. with an SPF under 15 are required to carry a warning label that explains this fact to consumers.
Q. What is the difference between organic and non-organic sunscreen?
A.Organic sunscreens may contain zinc oxide or titanium dioxide, which go a long way toward reflecting the sun’s rays. Non-organic sunscreens contain chemicals like oxybenzone that absorb the sun’s rays. Which is better? That’s up for debate, but scientists do agree that you should wear one or the other to protect your health.
