UVA Rays and Sun Protection紫外线A射线和太阳的保护

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.我们大多数人认识到，它的太阳的紫外线-紫外线A和紫外线B射线是负责损害皮肤超过双方短期和长期的。

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.较短的紫外线B光（波长之间的290和320 nm ）的渗透，只是表皮（顶端一层皮） ，并主要负责燃烧。 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).长波紫外线光（波长之间的320和400毫微米）组成的两种类型-长波紫外线短期（ 3 20- 34 0毫微米;长波紫外线-I I ）和长波紫外线长期（3 4 0-400毫微米;紫外线A-一） 。

Short UVA rays, like UVB rays, penetrate into the Epidermis.短期长波紫外线照射，如紫外线照射，渗透到表皮。 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，长期的紫外线A射线穿透深入真皮层，他们的贡献老化（皱纹，年龄景点，皮革皮肤以及某些类型的皮肤癌） 。

Most sunscreens contain adequate protection from UVB rays.最防晒油含有足够的保障，从紫外线照射。 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.由于现在还不是强制性的在美国或加拿大为制造商率长波紫外线防护能力的防晒霜，它的成立给我们做我们的功课。

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.当我们选择一种广谱紫外线A /阻断紫外线防晒更重要的，以确保该长波紫外线过滤器，它是包含了保护对整个频谱的长波紫外线照射。

Here is a breakdown of some of the more effective and widely used UVA filters and the range of protection that they offer:这里是一个分项部分的更有效和更广泛使用的长波紫外线的过滤器和各种保护他们所提供的：

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.虽然一些谨慎的研究，我们反对使用化学遮光剂，其他人保持他们提供优越的保护，更优雅的美容配方，比那些物理防晒油。 The choice is up to you, but here are my picks for sunscreens that will deliver protection across the UVA and UVB spectrum:选择了你，但这里是我的选秀防晒油，将提供保护全国长波紫外线和中波紫外线频谱：

Here are my top picks with regards to the above UVA filters:这里是我的首选对于上述长波紫外线过滤器：

1. Normal/dry skin facial or body protection (Mexoryl SX and Mexoryl XL)正常/干性肌肤面部护理或身体保护（ 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油性皮肤
   Anthelios Fluide Extreme SPF 50+ anthelios液化极端的SPF 50 +
3. Acneic Skin acneic皮肤
   Anthelios AC SPF 30 anthelios交流的SPF 30
4. Daily moisturizer plus sunscreen每日保湿加防晒
   Normal/dry skin -正常/干性肌肤- Hydraphase UV SPF 30 hydraphase紫外线的SPF 30 or或 Hydraphase XL SPF 15 Riche hydraphase xl的SPF 15 riche
   Oily skin -油性皮肤- 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 （良好的紫外线A ，紫外线B的覆盖面，另加）
   Bioderma Photoderm Max SPF 50+ Fluid bioderma photoderm最大的SPF 50 +流体 - face -面对
   Bioderma Photoderm Max SPF 50+ Lait bioderma photoderm最大的SPF 50 + lait - face and body -脸部和身体
6. Physical Blocker with Zinc Oxide/Titanium Dioxide物理拦截器与氧化锌/二氧化钛
   Cotz Total Block SPF 58 cotz总座的SPF 58