什麼是SPF?

UV photo of sunSPF(Sun Protection Factor) 是國際唯一認可用來量度防曬用品防御UVB的能力.目前還沒有公認量度防御UVA的系數.

一般來說SPF15至30已足夠日常的防御, SPF15能阻擋93%的UVB,至於SPF30度已能阻隔97%的UVB.愈高的度數只能帶來輕微的額外幫助,盲目追求高度數的防曬品只會適得其反,因 為一般人會誤以為高度數的防曬膏只須塗一次便能有全日的保護,

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Connecting to %s