May 24th, 2006, 22:10 | #1 |
**水*晶*心**
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SPF 15 啥意思?
SPF stands for Sun Protection Factor. SPF indicates the length of time a product will protect your skin from burning, compared to how long it will take to burn with no protection. If your unprotected skin starts to burn in 20 minutes, a product with SPF 15 will protect you from burning 15 times longer (about 5 hours). To maintain the level of SPF, you need to reapply sunscreen every 2 hours.
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一天省一块钱, 你可以改变一个孩子的一生… 请点击-- > Compassion Canada http://www.chinasmile.net/gallery/al...23/banner2.gif |
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May 25th, 2006, 20:02 | 只看该作者 #9 |
自由自在的飞
注册日期: Sep 2004
帖子: 420
声望: 292
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[转帖]解读防晒指数(医药博览)
这篇文章解释了SPF值的含义以及如何选择合适的SPF值: http://www.100md.com/html/DirDu/2005/05/12/55/80/87.htm 防晒指数不是越高越好: http://www.gd.xinhuanet.com/newscent...nt_2776448.htm 紫外线指数与SPF: http://info.china.alibaba.com/news/d...-d5524082.html |
IT'S NEVER TOO LATE TO START!
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