Tips on how to choose the right sunscreen

How to choose the right sunscreen is arguably the most important step in our sun protection work. There are a lot of little knowledge and selection skills that we need to understand. Let’s take a look at it today.

How to choose the right sunscreen

Choose a sunscreen according to your skin type and your needs. There are sunscreens suitable for dry skin, normal skin and oily skin. Choose according to the occasion. If you are just commuting, you can choose a sunscreen with a slightly lower SPF. If you are outdoors, you need to choose a sunscreen with a slightly higher SPF.

What is UV light?

According to the wavelength, it is divided into long-wave ultraviolet rays (UVA) and medium-wave ultraviolet rays (UVB):

1. Long-wave UVA

It has strong penetrating power and can penetrate glass, directly acting on the skin and subcutaneous tissue. The intensity varies little throughout the year and exists all year round. It is most closely related to melanin and aging.

2. Medium-wave UVB

It is the most active part of the biological effect of ultraviolet rays and reaches its peak in summer. It has weak penetrating power and is easily blocked, acting on the surface of the skin, which is the main factor that makes it easy to get sunburned.

What does SPF mean?

SPF, commonly known as the sun protection factor, represents the product's ability to protect against UVB and is expressed in numbers. For example, SPF30 and 50 are common, which means that the applied area can withstand 30 or 50 times more UV radiation than the unapplied area.

What does PA mean?

Indicates the product's UV protection registration, indicated by a + sign. The more + signs there are, the better the effect. Too high a value will put a burden on the skin, so just choose a moderate one! Some foundation products contain SPF values ​​but not PA values, which means they cannot protect against UVB damage!