자외선 차단제 Spf란? [용어설명]

2020 0:47
Synopsis
SPF란 자외선B를 차단하는 제품의 효과를 나타내는 지수입니다. SPF1은 10~15분 정도의 효과가 있으며 SPF20은 5시간, SPF40은 ...
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