The secret to not getting tanned in summer! Sun protection tips revealed!

Not using sunscreen is not only shameless, but also life-threatening!!! Did you know? Summer ultraviolet damage can not only cause pigmentation on the skin, darkening the complexion and creating various spots and blemishes; it can also absorb moisture from the skin, making it dry and rough, damaging the elastic fibers in the dermis and causing fine lines. Strong radiation can also cause skin inflammation, burns, and even pigmented skin cancer.

[SPF and PA that you must know]

We often have misunderstandings about skin care, such as thinking that the higher the SPF index, the better the sun protection effect. This is of course not necessarily true! The SPF and PA of sunscreen represent different meanings. Today, the editor will teach you to understand the sun protection index.

1. We need to know some common knowledge about the sun protection value marked on the sunscreen:

SPF is a numerical value of resistance to UVB. UVB can make our skin red in the short term and cause pigmentation in the long term, so we cannot ignore UVB.

The SPF value means "the amount of time a person's skin will turn red if they stay in the sun for 20 minutes without any protective measures." Therefore, SPF 15 sunscreen can extend the sunscreen time by 15 times, that is, it will take 300 minutes before you get sunburned. By analogy, for SPF20, it will take 400 minutes before you get sunburned...

PA is the value of resistance to UVA. UVA can sunburn our skin, make it dull in the short term, and age our skin in the long term, so we also need to pay attention to UVA. Also need to know that > ​​90% of UV rays are UVA

Usually, the strength of PA is represented by +, and an additional + means that the effective protection time is extended. Specifically:

The effective protection time of PA+ is about 4 hours.

The effective protection time of PA++ is about 8 hours.

PA+++ super protection.

2. How to choose sun protection value in different environments

For indoor work and study: SPF25--SPF30, PA++

Opportunities for exposure to the sun: on the way to work, during lunch, in the sun, in the room, from computer radiation, etc. It is ideal to choose SPF30 or PA++, and reapply every 4-5 hours.

For those who work or study outdoors: For outdoor activities: SPF30+, PA+++

Exposure opportunities: prolonged exposure to the sun. It is safest to choose SPF30+, PA+++, and reapply every 2-3 hours.

For those who go to the beach and sweat a lot: Waterproof SPF30+, PA+++

Finally, I would like to remind you that in addition to choosing a high coefficient product, you also need to have waterproof and sweat-proof effects, and reapply every 2-3 hours.

The right time to apply sunscreen

Apply sunscreen at least 10 minutes before going out, so as to ensure that the effects of sunscreen are fully exerted and effectively protect our skin.

[Correct amount of sunscreen]

Don't be stingy when applying sunscreen products. You must apply at least 1-2 ml (the size of a one-yuan coin) each time to achieve the best sun protection effect.

【How to choose sunscreen products】

The key to summer skin care is sun protection; so how to choose sunscreen products?

1. Thin and light

In the hot summer, sunscreen products are increasingly being marketed as light and thin. So if you don’t need to be exposed to the sun for a long time like learning to drive, swimming, or going on a picnic, the lighter the better, allowing the skin to breathe freely without adding burden to the skin.

2. Waterproof and sweat-proof

In summer, the skin temperature is high and the skin is prone to sweating. If the sunscreen is not waterproof and sweat-proof, the sunscreen effect will be greatly reduced!

3. Appropriate sun protection factor

Choosing the right sun protection factor can not only give the skin perfect protection, but also avoid causing deep burden on the skin due to incorrect use! If you use sunscreen products that can only be used outdoors indoors, it is easy to cause excessive burden on the skin and clog the pores!