How to choose spring sunscreen products?

The first thing is to distinguish between the SPF and PA+ parameters of sunscreen products:
SPF vs UVB: The size of SPF represents the duration of protection from the sun after application, SPF 1 is equivalent to 15 to 20 minutes, which means that SPF 30 is 15 minutes X 30 = 7 and a half hours.
PA+ vs UVA: The effectiveness of PA is divided into three levels, namely PA+, PA++ and PA+++. PA+ means effective, PA++ means quite effective and PA+++ means very effective.

Tips for applying sunscreen products

• Sunscreen products are not necessarily applied evenly at one time, it is recommended to apply it in two times and vary the technique for the whole face evenly, not to apply too thin.
• Use sunscreen should also pay attention to moisturizing!
• Don't forget to remove makeup and clean thoroughly to ensure the effective absorption of skin care products.