Why do you need SPF?
For beach parties, the presence of sunscreen is mandatory, but few people think about its need in the city.

In addition to a lovely golden tan, the sun's rays accelerate the process of photoaging of the skin. Therefore, the SPF-tool should be not only in your beach bag, but also in a daily cosmetic bag.

No matter how much we rejoice in the beautiful sun, but excessive exposure to UV rays on the skin disrupts the natural processes of renewal of the epidermis. As a result, the skin dries out, loses tone, there are pigment spots and wrinkles. UV rays will get us anywhere, so in a noisy city is not safer than on the beach.

Ultraviolet rays are divided into three types:

UVC rays are the most dangerous, but because of the Earth's ozone layer, they do not reach its surface and do not affect human skin.
UVB rays - thanks to them, we sunbathe. But due to the fact that they linger in the upper layer of the skin, easily damage it and as a result, we get sunburn. Particularly active in the period from May to October, from 10 am to 4 pm.

UVA rays - penetrate into the upper and deeper layers of the skin. They also promote tanning and do not provoke visible damage, such as burns. But there is a drawback, UVA rays are the main factor that provokes photoaging and, in addition, cause hyperpigmentation, dry skin and damage to collagen and elastin fibers. Increase the risk of genetic mutations and skin cancer. Active all year round.
They are scared and do not need to hide from the sun, the main thing is to find a suitable protection. The first thing we pay attention to is the SPF factor. Actually, it is even indicated on many tonal foundations and BB creams. It shows how effective it is against UVB rays, but not UVA. That is, the skin will not burn, but this will not stop the photographic.

The presence of UVA protection is indicated in different ways, for example, on American means the mark "broad spectrum", on Asian PA +++, and on European means the UVA icon in a circle.

Sanscreen should be applied after daily care and then apply decorative cosmetics. Since filters absorb radiation, they do not have to be on the surface, so the presence of foundation will not affect them in any way.

Sunscreens are mineral / physical and chemical. Mineral sunscreens include zinc oxide and titanium dioxide. And chemical filters have a more complex structure and include carbon molecules, such as avobenzone.

Both aim to prevent UV radiation from reaching skin cells.

Chemical filters absorb UV rays and reflect some of the rays. Absorbed into the skin surface, while mineral, create a film.

Mineral filters reflect some long UVA rays and short UVBs absorb them. They are less likely to cause allergies, so they are good for sensitive skin. But there is an unpleasant moment - they leave white marks.
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