Summer is coming soon. For many people, don't they like it very much? Because the poisonous and hot sun can easily burn the skin and damage the body, many friends will apply sunscreen for themselves when they go out. Some people think that the higher the sun protection factor of sunscreen, the better. However, this is not the case. So how to choose sunscreen in summer?
Why isn't the higher the SPF, the better
Some friends think that the higher the SPF of sunscreen, the better the effect of protecting skin from sun damage. Although there is no mistake in theory, in practice, if the SPF of sunscreen is too high, it is easy to damage people's skin.
Friends who have used sunscreen all know that the sunscreen with higher SPF index is more greasy after use, and the skin is covered by greasy sunscreen for a long time, which is easy to cause serious damage, so sunscreen is not the higher SPF, the better. Choosing the right one is the best.
In addition, compared with low index sunscreens, sunscreens with higher SPF contain more chemical substances and toxic substances. If the skin is exposed to these substances for a long time, the skin will become worse and rougher. So when you can choose low index sunscreen, you'd better not use high index sunscreen.
Selection criteria of sunscreen
No matter how the sun shines, many friends will put a layer of high index sunscreen on their bodies before going out. Through the above, we know that this practice is harmful to the body. Therefore, we need to know the standard of choosing sunscreen.
1、 Depending on the occasion
Generally speaking, it is enough to choose sunscreen with SPF 15 when you go shopping, because most of you go shopping in shopping malls or shops, and the time of exposure to sunlight is not very long, so you can choose sunscreen with SPF 15.
But in military training, beach swimming and other long-term exposure to the sun activities, it is best to choose sunscreen with SPF 30, and sunscreen with SPF 30 + is not necessary. So you can decide how to choose sunscreen according to the occasion.
2、 Look at the skin
The use of sunscreen has a lot to do with the type of skin. Some people's skin is easy to get oily. If you sweat a little when you go out, your face will be extremely greasy. Some people's skin is very dry. Even if you apply high index sunscreen, it will not be very greasy. Therefore, it is necessary to choose sunscreen according to the type of skin.
Generally speaking, people with greasy skin are not suitable for high index sunscreen, because it will make the pores blocked by oil more airtight and make skin problems more serious. People with dry skin can choose sunscreen with higher sunscreen index, because even if they are slightly greasy, pores will not be blocked. Of course, between 15 and 20, 30 is not necessary.
3、 Look at the ingredients
Some sunscreens contain vitamins and other substances that can nourish the skin from the outside to the inside. Choosing this sunscreen is better than some sunscreens that contain many chemicals, because they will not damage the skin. Relatively speaking, clear sunscreens are mostly of this type. On the contrary, they are mostly sunscreens containing chemicals. In addition, clear sunscreens can greatly reduce the burden on the skin and avoid skin damage. So you need to pay attention when choosing.
4、 Take a look at the other indices
When many friends choose sunscreen, they only look at the sun protection index, but seldom know about the anti ultraviolet index or some other indexes. This is obviously wrong. You should know that about 90% of the sun is ultraviolet, so in addition to the sun protection index, the anti ultraviolet index is obviously the most important.
Long term use of sunscreen with inappropriate anti ultraviolet index can easily lead to dark skin and rough skin, and even accelerate the aging of skin to a certain extent. Therefore, in addition to the sun protection index, we should also pay attention to other indexes when choosing sunscreen.
5、 Choose regular sunscreen
Cosmetics market has always been very chaotic, in which fake products are frequent, and sunscreen is an important thing, so in order to avoid the physical damage caused by the purchase of fake products, it is best to choose regular channels to buy sunscreen, so as to avoid buying fake products. The choice of sunscreen is very important, how to use sunscreen is also very important, the wrong way to apply sunscreen is easy to reduce the effect. So we need to master the correct way to use it.
How to use sunscreen
1、 Apply evenly
When you go out to play, you should apply sunscreen evenly to avoid thick sunscreen on one part and thin sunscreen on the other. It's better to apply all the body parts exposed outside the clothes on one side, so as to avoid the harm brought by the sun. When you go out to play, apply sunscreen evenly to avoid thick sunscreen on one part and thin sunscreen on the other.
2、 Increase or decrease in time
After going out for a period of time, when the sunscreen is ineffective, it's best to clean it as soon as possible to avoid excessive pressure on the skin, resulting in damage to health. In addition, when the sunscreen loses its effectiveness, reapplying sunscreen can better protect yourself from the sun's harm to your health.
3、 Test for allergic reactions
Some sunscreens contain a lot of chemicals, which can cause people to have allergies. Therefore, it is better to have an allergy test before use, so as to avoid the situation that sunscreens cause allergies and harm the body.