UVA Rays and Sun Protection紫外線A射線和太陽的保護

Most of us recognize that it’s the sun’s UV rays – both UVA and UVB rays that are responsible for damage to the skin over both the short and longer term.我們大多數人認識到，它的太陽的紫外線-紫外線A和紫外線B射線是負責損害皮膚超過雙方短期和長期的。

The shorter UVB rays (wavelength between 290 and 320 nm) penetrate just to the epidermis (the top layer of skin) and are responsible primarily for Burning.較短的紫外線B光（波長之間的290和320 nm ）的滲透，只是表皮（頂端一層皮） ，並主要負責燃燒。 UVA rays (wavelength between 320 and 400 nm) are composed of two types – UVA short (320 – 340 nm; UVA-II) and UVA long (340-400 nm; UVA-I).長波紫外線光（波長之間的320和400毫微米）組成的兩種類型-長波紫外線短期（ 3 20- 34 0毫微米;長波紫外線-I I ）和長波紫外線長期（3 4 0-400毫微米;紫外線A-一） 。

Short UVA rays, like UVB rays, penetrate into the Epidermis.短期長波紫外線照射，如紫外線照射，滲透到表皮。 But long UVA rays penetrate deeper into the Dermis where they contribute to Aging (wrinkles, age spots, leather skin as well as some types of skin cancers).但是，長期的紫外線A射線穿透深入真皮層，他們的貢獻老化（皺紋，年齡景點，皮革皮膚以及某些類型的皮膚癌） 。

Most sunscreens contain adequate protection from UVB rays.最防曬油含有足夠的保障，從紫外線照射。 Since it is not yet mandatory in the US or Canada for manufacturers to rate the UVA protection capabilities of a sunscreen it’s up to us to do our homework.由於現在還不是強制性的在美國或加拿大為製造商率長波紫外線防護能力的防曬霜，它的成立給我們做我們的功課。

When we choose a broad spectrum UVA/UVB blocking sunscreen it’s important to ensure that the UVA filter it contains is protecting against the whole spectrum of UVA rays.當我們選擇一種廣譜紫外線A /阻斷紫外線防曬更重要的，以確保該長波紫外線過濾器，它是包含了保護對整個頻譜的長波紫外線照射。

Here is a breakdown of some of the more effective and widely used UVA filters and the range of protection that they offer:這裡是一個分項部分的更有效和更廣泛使用的長波紫外線的過濾器和各種保護他們所提供的：

While some studies caution us against the use of chemical sunscreens, others maintain that they deliver superior protection in more cosmetically elegant formulations than those of physical sunscreens.雖然一些謹慎的研究，我們反對使用化學遮光劑，其他人保持他們提供優越的保護，更優雅的美容配方，比那些物理防曬油。 The choice is up to you, but here are my picks for sunscreens that will deliver protection across the UVA and UVB spectrum:選擇了你，但這裡是我的選秀防曬油，將提供保護全國長波紫外線和中波紫外線頻譜：

Here are my top picks with regards to the above UVA filters:這裡是我的首選對於上述長波紫外線過濾器：

1. Normal/dry skin facial or body protection (Mexoryl SX and Mexoryl XL)正常/幹性肌膚面部護理或身體保護（ mexoryl SX的和mexoryl xl ）
   Anthelios XL SPF 45 anthelios xl的SPF 45 or或 Anthelios XL SPF 60 Cream anthelios xl的SPF 60霜
2. Oily skin油性皮膚
   Anthelios Fluide Extreme SPF 50+ anthelios液化極端的SPF 50 +
3. Acneic Skin acneic皮膚
   Anthelios AC SPF 30 anthelios交流的SPF 30
4. Daily moisturizer plus sunscreen每日保濕加防曬
   Normal/dry skin -正常/幹性肌膚- Hydraphase UV SPF 30 hydraphase紫外線的SPF 30 or或 Hydraphase XL SPF 15 Riche hydraphase xl的SPF 15 riche
   Oily skin -油性皮膚- Hydraphase XL SPF 15 Light hydraphase xl的SPF 15光年
5. Tinosorb M and S (excellent UVA plus UVB coverage) tinosorb M和S （良好的紫外線A ，紫外線B的覆蓋面，另加）
   Bioderma Photoderm Max SPF 50+ Fluid bioderma photoderm最大的SPF 50 +流體 - face -面對
   Bioderma Photoderm Max SPF 50+ Lait bioderma photoderm最大的SPF 50 + lait - face and body -臉部和身體
6. Physical Blocker with Zinc Oxide/Titanium Dioxide物理攔截器與氧化鋅/二氧化鈦
   Cotz Total Block SPF 58 cotz總座的SPF 58