Do you have a lot of questions about sun protection? Which sunscreen is the best? Do you have to use sunscreen indoors? What does the SPF on sunscreen mean? Which sunscreen products of different textures are better? Don’t worry, I will answer you one by one.
1 I am in the office every day during the day, do I also need sun protection?
Sun protection is a daily task. You have to know that UVA ultraviolet rays that cause skin aging have strong penetrating properties. It can penetrate glass, penetrate clouds and directly enter the dermis of the skin, causing direct damage to the skin. Therefore, it is also necessary to apply sunscreen in the office, but choose those sunscreens or sunscreens with lighter textures, or choose sunscreens with maintenance functions. Generally, SPF15/PA is enough. It should be emphasized that sunscreen or isolation cream cannot block computer radiation. The most important means to eliminate radiation is to do a good job of cleaning every night.
2 In addition to the word SPF, the word PA has appeared on sunscreens in recent years. What does it mean?
Today’s sunscreen products often see the letters ‘PA’. Current science has confirmed that UVA-1 is the murderer of skin aging, so Japanese scientists have developed sunscreens that specifically block UVA-1, and use ?? ?? to represent the defense strength. The correct statement of PA is Protection of UVA-1, and its degree is indicated by three intensities, , , and . The more words ‘ ‘, the better the effect of preventing UVA-1.
3 Are the characteristics of several sunscreen products of different textures different? Is the water resistance of sunscreen better?
Now the texture of sunscreen products is very different from the previous years. Generally, the texture is very refreshing and light, and even SPF50 products will not feel heavy. Sunscreen products are still the most common in the form of ‘cream’. Spray-type liquid products are more refreshing and convenient to use, while oil or cream products generally have good waterproof and sweat-proof effects, but they will feel obvious when applied on the face. Uncomfortable, generally used for the body more.
4 What are the different applicable scopes of sunscreen foundation, sunscreen barrier cream, and sunscreen?
If you are a 9-to-5 office worker and need to wear light makeup to show off, sunscreen foundation is a very convenient choice, and makeup is easy to touch up; if you don’t like foundation and want to improve it moderately For a little skin tone, a lightly tinted sunscreen will suffice; if you’re in a situation where you don’t need any makeup at all, or if you’re going to be exposed to strong sunlight during the day, it’s best to use a sunscreen with an appropriate index. As for the difference between sunscreen and sunscreen isolation cream, the main reason is that the isolation cream generally has the effect of correcting skin tone, and it also helps foundation to make makeup easier.
5 How do I add sunscreen when I wear makeup? How to apply sunscreen if you have a lot of sweat on your face?
You must know that sunscreen supplementation is a skill! Many girls know how to apply sunscreen, but they often apply layer after layer of sunscreen directly on their faces, which may result in ‘replenishing’ terrible fat particles! We tell you a few tips for reapplying sunscreen: after applying makeup, you can use a tissue to gently wipe off sweat and oil, or just use oil-absorbing paper to absorb oil, and then use a sunscreen powder to touch up your makeup; if your face is sweaty and oily A lot, so be sure to wipe off the sweat and greasy with a makeup remover wet tissue first, and then apply sunscreen, or use a moisturizing spray to clean your face and then apply.
6 I’m afraid of tanning, so I want to use a whitening mask immediately after sun exposure, is this ok?
I’ve seen friends around me do this and have skin rashes and other sensitivities as a result. This is because the skin after sun exposure is very dehydrated and has some inflammatory reactions, so when you put an acidic whitening mask on your face, you increase the chance of being sensitive.
The correct way is to use a moisturizing mask immediately after sun exposure. It is especially recommended to use a gel-like or paper-film moisturizing mask. If possible, it is better to freeze it in the refrigerator. . After the dehydrated skin after sun exposure is cooled and hydrated, it will naturally restore the health of the stratum corneum. As for the whitening procedure, it is not too late to wait until the skin is completely stabilized.
7 Is it the hotter the UV is the stronger?
UV rays do not heat up. For example, when climbing a mountain, the higher the mountain, the cooler the mountain winds, and people even feel cold, but the ultraviolet rays at this time are very strong. That is, for every 1,000 meters up, the UV light increases by 10 percent. In the same way, the sea breeze makes you feel cool in the sea, but the ultraviolet rays at that time have reached an extremely strong level, so don’t ignore sun protection just because you stay in a cool place and don’t get hot.
8 Heard that the best sunscreen is a T-shirt, is that true?
An ordinary T-shirt is better than any sunscreen, with an SPF of about 15-30, it does block 95 percent of UV rays, but remember that when the clothes are wet, they lose the effect of sunscreen ; In addition, the place where the T-shirt cannot block still needs sun protection. If you go out to play, a long-sleeved T-shirt, a Panama hat or a small straw hat, and then apply SPF30/PA sunscreen, is a safe combination.
9 Do I still use sunscreen on cloudy days?
Clouds have almost no isolation effect on UVA rays. All UVA rays can penetrate the clouds, which means that 90 percent of the UV rays can penetrate the clouds. Only when it is dark The kind of thick cumulonimbus clouds can block some UV rays, so it is best to use SPF10-15 products in cloudy weather.
10 My skin is already tanned enough, should I no longer use sunscreen?
The brownish-yellow color of the skin after sun exposure indicates that the skin is in a state of self-preservation – thickening of the skin and production of melanin is a manifestation of the skin’s self-protection. However, melanin can only partially absorb ultraviolet UVB, which plays a role in isolation, so that the skin is not damaged, but has no function of absorbing ultraviolet UVA, so even tanned skin will also be damaged by UVA, and sunscreen is also required.
11 What should I consider before buying sunscreen?
When people buy sunscreen products, they mostly choose the sun protection factor (SPF), which is not comprehensive. Before buying, you should take into account the nature of your work, living habits, skin tone, age and many other factors. For example, for office women who stay indoors for a long time, the SPF 15 factor is sufficient. If they often run around outside, it is best to choose SPF20 or above, and if they like to engage in water sports, the SPF must be increased to SPF30 or more; In addition, people with fair skin, it is best to choose a sunscreen with SPF 25 or above to prevent the occurrence of spots; and if the skin is darker and darker, you can use SPF 15 products on weekdays.
12 How long does it take for sunscreen to really work on the skin?
The working principle of sunscreen is to isolate the skin from ultraviolet rays. Since the isolation ingredients must penetrate into the stratum corneum surface to exert a long-term absorption and isolation effect, it must be wiped 20 minutes before going out. After finishing, the effect will be better if you replenish it again before going out; in terms of dosage, at least 1-2ml should be used each time to achieve the best isolation effect; and you should try to avoid going out during the most intense sunshine time (in the morning). 10:00 to 2:00 pm); at the same time, make good use of various auxiliary items, such as parasols, hats, long-sleeved clothes, sunglasses, etc., to jointly resist the invasion of ultraviolet rays.
13 I heard from a friend of mine that UV damage adds up, is that true?
Our skin’s memory system records the amount of damage to the skin each time the sun hits it, and it adds up over time. As the time of exposure to the sun increases, the sunlight energy in the skin is gradually depleted, and eventually our skin cannot be protected. Generally, at the age of 20, 50 percent of the ‘sunshine capital’ will be consumed. Due to individual differences, the speed at which the cost of sunlight disappears from the skin varies from person to person.
14 Can a sun umbrella protect against the sun?
Choosing an anti-UV umbrella mainly depends on the fabric of the umbrella. Studies have shown that thicker fabrics have better anti-ultraviolet performance than thin ones. Generally speaking, cotton, silk, nylon, viscose and other fabrics have poor anti-ultraviolet effect, while polyester is better; The thicker the better the UV protection, but it is not the case. For example, the Heaven Umbrella series has developed a light and thin but very tight fabric, the protection performance is much better than that of ordinary fabrics; in addition, the darker the UV protection, the better, and the satin fabric is the best , followed by twill and plain weave.