防曬產品上面嘅PA/SPF有咩分別？要幾多先做到真係防曬效果？
<P>防曬產品上面嘅PA/SPF有咩分別？<BR>要幾多先做到真係防曬效果？</P>
By carmen lai (畢業生) on 2011-07-11 答案 2 觀看次數 90
By ㊣天然野生菇菌類 (小學生) on 2011-07-16
參考: http://www.rocecoco.com/html/ProductView.asp?ID=45
By cammy kong (畢業生) on 2011-07-11
pa係防uva嘅指數,pa 後面D +係防曬強度pa +++最高 spf係防uvb. spf 1防到20mins.所以spf 30就夠架喇
