What does spf30pa +10+10 mean? Is the higher the spf, the better?

The SPF value is a number we often see when choosing sunscreen, and its size is very important for us to choose sunscreen. So, what does it mean? Let me show you today.

What does spf30pa 10 10 mean?

SPF is the sun protection factor. SPF30 means that your skin will turn red after staying in the sun for 300 minutes. The degree of PA is indicated by three intensities: +, ++, and +++. The more "+" there are, the stronger the effect of protecting against UVA-1. The selection of sunscreen products mainly considers two indicators, namely SPF and PA index.

Is the higher the SPF, the better?

If the skin is not injured, there is generally no need to use sunscreen with a high SPF index. Daily life and work: SPF index of 15, PA+ is sufficient. Traveling and sports: SPF should be above 30, PA++ or above, and the sunscreen product should also be waterproof.

Is SPF30 enough for summer?

SPF30 sunscreen is actually not enough in the summer, because SPF30 means that in the absence of sweating or other external conditions, it can block ultraviolet rays for 15*30=450 minutes, which is equivalent to more than 7 hours. But in fact, SPF30 sunscreen cannot protect the face for such a long time.

How much SPF sunscreen should I use in summer?

Students and office workers: SPF30 sunscreen (PA++, PA+++) Outdoor athletes, beachgoers, and travelers: SPF50 sunscreen (PA+++, PA++++)