为什么防晒霜很重要??
的 who, what, when, w在这里 and why of using sunscreen.
谁应该使用防晒霜?
Everyone except infants younger than six months should use sunscreen, according to the 美国皮肤病学会.
你应该在防晒霜中寻找什么?
的 美国皮肤病学会 推荐含有以下成分的防晒霜:
- Broad-spectrum protection, which shields UVA and UVB rays.
- UVA rays cause lasting skin damage, contribute to skin aging.
- UVB射线会导致晒伤和皮肤损伤.
- 防晒系数(SPF)为30或以上. Higher SPF equals more protection, but no sunscreen blocks 100% of UV rays.
- Water-resistance to withstand water sports and sweating
- Water resistant: effective up to 40 minutes in water.
- Very water resistant: effective up to 80 minutes in water.
- 没有防晒霜是完全防水的.
避免使用组合产品, such as moisturizer with SPF or sunscreen with insect repellent, as sunscreen needs to constantly be reapplied, 而其他产品则没有.
如果:
- 它已经三年多了
- 过期了
- 颜色或稠度发生了变化
- 的 container has been exposed to high temperatures
什么时候该涂防晒霜?
只要你暴露在阳光下, wear sunscreen. Sun protection isn't just for summer, either:
- Snow, sand and water reflect harmful UV rays
- 80% of UV rays reach your skin on cloudy days
什么时候应该涂防晒霜?
- Put it on 15 to 20 minutes before sun exposure
- Two hours after every application, 游泳或出汗
应用防晒霜?
W在这里 to apply sunscreen is easy to remember — on all skin that is not covered by clothing. 不要忘记:
- 耳朵
- 头皮
- 嘴唇
- 脖子
- 脚尖
- 手背
至少要用一盎司, about the size of a quarter, to cover exposed areas.
Different types of sunscreen work better on different areas:
- 脸 -奶油防晒霜
- 头皮 -凝胶防晒霜
- 眼睛周围 -防晒棒
- Body -乳液或喷雾防晒霜
防晒霜的好处:为什么要使用它
To avoid painful sunburns and lasting skin damage, which can lead to skin cancer. It only takes 15 minutes for the sun to begin damaging your skin.
