On a day when there is no sun, is it possible not to wear sunscreen?

You can use a day cream with SPF, such as Mary Kay's Brightening Day Cream, which has 15 times more sun protection.

Hello, Know Me Cosmeceutical Skin Consultant is happy to help you.

Clouds can only block a small fraction of the light. 95% of the light can pass through the clouds. So be careful!

An umbrella can block out half of the light. Visible and ultraviolet light can reach you indirectly through reflections elsewhere, 20% by water and 15-25% by sand. Need to be extra careful!

Make it a habit to use sunscreen all year round. Many people must be like Kochi before, and only use sunscreen in the summer when the weather is hot. Because our skin can be easily tanned by the sun.

In fact, not only in summer, but also in spring, autumn and winter, even if it is cloudy, the intensity of ultraviolet rays cannot be underestimated. Although it is not visible for a while, melanin slowly accumulates in our body, and it will affect the skin over time.

Ultraviolet rays are based on the intensity of the sun, but there will be ultraviolet rays even when the sun is not shining, so you must wear sunscreen. Simple products are water - > lotion - > day cream - > sunscreen. This is the basic protection.

No, even if you don't have the sun, you have to wear sunscreen, ultraviolet rays will sunburn**, it is recommended that you use Lancôme or Shiseido products.

Sunscreen works all year round.

You can try BB cream.

If you want to protect yourself from the sun without the sun, you can apply some anti-ultraviolet protection products, such as olay, which is the most suitable.

Although there is no sun, it is still recommended to wear sunscreen, especially in the south, where ultraviolet rays still exist without sunlight It's just that it will be stronger when there is sunlight.

Can't do without sunscreen.

But I'm too lazy myself, so I don't paint it.

Still use sunscreen. Because UV rays are everywhere. I use Olay. Very comfortable.

BU Yes, the ground radiation is greater on cloudy days, and the clouds also block the transmission of ultraviolet rays, so sometimes the ultraviolet rays are stronger.

You also need to wear sunscreen when you don't have the sun. Ultraviolet light is divided into long, medium and short-wave ultraviolet light. Short-wave ultraviolet rays are absorbed by the atmosphere, so they have little impact on the human body, and long-wave and medium-wave ultraviolet rays should be particularly protected, medium-wave ultraviolet rays can be blocked by glass, but long-wave ultraviolet rays are not.

Ultraviolet rays are very penetrating and affect people 365 days a year.

Sunscreen refers to cosmetics that are added with sunscreens that can block or absorb ultraviolet rays to prevent skin from tanning and sunburning. According to the principle of sunscreen, sunscreen can be divided into physical sunscreen and chemical sunscreen.

Sunscreen needs to choose products with different SPF or PA values according to the specific object to achieve the purpose of sun protection. Sunscreen works by isolating ** from ultraviolet rays.

The main difference between sunscreen lotion and sunscreen is the physical properties, the general water content of the cream is about 60%, which looks relatively "thick" and paste-like; The emulsion, with a water content of more than 70%, looks relatively thin and has fluidity.

Not seeing the sun doesn't mean not having the sun. Even though it is covered in thick clouds, as long as the sky does not turn black, it still means that a considerable portion of the sunlight is shining on the ground. This includes two types of ultraviolet light that have a noticeable effect on **

UVA and UVB, which mainly cause tanning, UVA is closely related to photoaging.

What is photoaging? Maybe you've heard of it: due to years of UV exposure and the resulting damage, ** shows faster and more noticeable signs of aging than natural aging.

For an adult who never takes sun protection measures, 80% of ** aging is photoaging, and only 20% is the result of natural aging. From this point of view, it is not entirely fictional that a little dragon girl who lives in the mountains without sunlight all year round can maintain her youthful appearance for a long time. Without photoaging, the rate of aging would indeed be much slower.

Aging is not as simple as a few wrinkles. In the eyes of many people, a face with such fine wrinkles is still quite vivid and natural. When there are large spots, sagging, loss of elasticity and luster, and becoming rough and yellow, it is not so exciting.

These are all signs of aging. If you feel that a few little freckles kissed by the sun on your young face are lively, then the little freckles will become lingering dark clouds and haze on your face, that is, you pay the price for photoaging.

Although yellow people are not as susceptible to further lesions or even cancers due to years of sunlight as white people, overexposure is often accompanied by sensitivity and acne problems. Because these reactions tend to be delayed, you're likely to blame the sensitivity or popping beans on what cosmetics you used, what you ate wrong, or a change of season. Unexpectedly, it actually came from excessive sun exposure that had not been protected for months.

Sunscreen every day and the best use of sunscreen in moderation on rainy days and indoors has been proposed in the beauty industry for many years. This is by no means to trick people into buying a few more bottles of sunscreen, but because aging UVAs, whether it rains or not, indoors or not, will be present and the quantity will not change much. People with plenty of sunlight in their office or living room bedroom near floor-to-ceiling large glass windows all year round are not much different from being exposed to UV rays directly outside.

Of course, you can put a UV protective film on the glass, but how to ensure how reliable the protective film is in the office? It's best to wear a SPF day cream or base cream before going out every day.

You need to wear sunscreen, although there is no sun, there will be some ultraviolet rays in the air, so you must wear sunscreen to block ultraviolet rays.

Need. Because when there is no sun, there is also ultraviolet radiation, so you need to wear sunscreen.

Yes, you need to wear sunscreen when you don't have the sun, because it's very protective**.

There are two types of ultraviolet light: UVB and UVA.

UVB damage and protection has been thoroughly studied, it can make ** sunburn in a short period of time, redness (for the average person is about 25 minutes), now the vast majority of sunscreen products on the market are UVB type, SPF is a sign of UVB protection ability.

UVA is a terrible sun killer, it can penetrate the surface layer of the skin, deep into the tissues below the dermis, can destroy collagen, elastic fiber tissue and other internal microstructures, wrinkles and fine lines, and make **sagging and aging. This is medically known as photoaging.

In the energy distribution of ultraviolet rays in sunlight, UVA is 15 times that of UVB, which is the main cause of tanning. It can reduce the content of hyaluronic acid bound to water, make **dry, accelerate the formation of melanin, make the skin darker, and is also an important cause of cancer.

It has been found that the general intensity of sunlight UVA shines on **, and after about 2 4 hours, ** will appear relatively stable blackening, which is academically called "continuous instant blackening".

The so-called SPF value refers to the ability of the product to protect against UVB, that is, the ability to prevent redness and sunburn. Generally speaking, the time for human ** to produce erythema in direct sunlight is 20 25 minutes, if the SPF value of a bottle of sunscreen is 8, apply it once, and the protection time of ** is about 20 (25) 8 160 (200) minutes. For details, please refer to the following table:

SPF value is a condition of use.

2 8 Sunshine in winter, morning and evening sunshine and rainy days in spring and autumn.

9 20 summer morning and evening and moderate intensity sun.

21-30 Outdoor work, travel, strong summer sunshine.

>30 in specific environments (e.g., plateaus), strong sunlight exposure.

In foreign countries, in addition to the SPF value, the words "PA+" can often be found on the packaging of UVA sunscreen products, which indicates the product's ability to protect UVA, that is, the ability to prevent tanning. Generally, the products with this logo are sunscreen products that have just been launched, which are relatively advanced in technology, and there are no domestic products yet. The meaning of the PA value is as follows:

PA value Effective protection time.

PA+ about 4 hours.

PA++ about 8 hours.

PA+++ super protection.

Even if there is no sun, sunscreen should be used consistently, because even cloudy days will hurt your **UV rays, even indoor fluorescent lamps will have UV damage**Oh, so sunscreen must be used! However, in the absence of sunlight, you can choose a sunscreen with a lower sun protection factor, or you can choose a sunscreen with a sun protection factor.

**Fair-skinned girls should be cherished**. Don't think that there are no ultraviolet rays on cloudy or rainy days, ultraviolet rays can reach the surface through the clouds, but not as strongly as on sunny days. Therefore, in order to maintain white skin, you should still protect yourself from the sun every day.

You can use SPF 10 to SPF 20 for daily sun protection, such as if you usually sit in a classroom or office most of the time, SPF 15 is a good idea. If you're shopping or playing, use SPF30. Swimming, you should use waterproof, SPF50 or UVB are two different rays in the sun, which are harmful to **, will make **dark, aging, spots, and acne.

Therefore, we must do a good job of sunscreen work, in addition to using sunscreen products, we must also use umbrellas when going out on sunny days in summer, so that sunscreen can be really effective. I am also a white girl, and in Guangdong, I have to protect myself from the sun all year round. What I'm most afraid of is not tanning, it's getting **cancer in the future, sweating....Seven originals

There is no sun and there is ultraviolet rays!!

No sun is also caused by ultraviolet rays, you need to apply sunscreen, ultraviolet rays are everywhere.

In fact, in life, in addition to sunlight, artificial light sources of different wavelengths also have more or less UV light components, such as tungsten lamps, mercury lamps, energy-saving bulbs, fluorescent lamps and halogen lamps commonly used for lighting in offices and homes.

Develop the habit of rubbing sunscreen every day to avoid UV rays in life from irradiating the skin, whether it is summer or winter, day or night, all-round protection allows UV rays to be completely blocked from life.