Many people don't take the time to protect themselves against these damaging rays, which can lead to serious problems later on. Here are the best ways on how to protect your skin from harmful UV rays.
What is ultraviolet light?
The light component contained in the sun's rays is called "ultraviolet rays ", also known as "UV ", and it is not visible to the human eye.
It is said that it occupies about 6% of the sun's rays that reach the earth, and it has a short wavelength and high energy, which causes great damage to the skin.
Most people think that the season when UV rays are strong is a very hot summer. However, in reality, most rains are from May to July. In other words, it is too late to take measures against UV rays after summer comes, and damage will accumulate on the skin.
The number of ultraviolet rays in spring is less than in early summer, but it is three times as much as in winter.
Even if you think it is okay because it's not hot yet, it's the time when the ultraviolet rays are the strongest around May, so it can cause not only sunburn but also wrinkles and spots.
Many of the causes that appear older than the actual age are also referred to as skin aging due to wrinkles, age spots, and dullness. Everyone wants to be young and beautiful forever. It is important to start care as soon as possible without worrying about it.
Types of UV rays and their effects
Ultraviolet A (UVA)
Ultraviolet rays account for about 90% of the total ultraviolet rays that reach the surface of the earth. This ultraviolet light reaches not only the epidermis but also the dermis at the back of the skin, causing dark pigmentation and causing spots and wrinkles. Since symptoms such as redness and inflammation are unlikely to occur, it is easy to get daily "inadvertent sunburn".
Ultraviolet B (UVB)
Ultraviolet rays that reach the surface of the earth only slightly, and have a dose of about 10/1 of ultraviolet rays. However, be careful because it has very strong energy. It can also cause sunburn and skin cancer. Since it has a strong effect on the skin, it is easy to get leisure sunburn" in the sea or sports.
Ultraviolet C (UVC)
Ultraviolet rays are said to not reach the earth as long as there is an ozone layer. This UVC is artificially made and used such as germicidal lamps.
Effects of ultraviolet rays
Ultraviolet rays are also said to make people old and cause various disorders to the body.
A long time ago, it was healthier and cooler to burn your skin and make it black! There was a time when it was said, but in reality, it was a heavy burden on the skin.
An example of the symptoms that ultraviolet rays give to the body
Spots
When exposed to a lot of ultraviolet rays, the genes of the pigment cells that make melanin in the skin are mutated and excessive melanin is made, causing many spots on the skin.
Wrinkle
Wrinkles are formed on the skin because it produces enzymes such as collagen and elastin that cut the fibers related to elasticity and elasticity into small pieces.
Damage to hair
When exposed to ultraviolet rays, the melanin of the hair is mutated, the color of the hair becomes brown, the cuticle is damaged, and the hair becomes dry.
Cataract
It passes through the cornea in the eyeball and damages the crystalline lens, resulting in cataracts.
Immune weakness
Ultraviolet rays destroy the cells responsible for the immunity of the skin, making it easier to get infected with bacteria and viruses and making it easier to get sick.
Skin cancer
When ultraviolet rays are absorbed by skin cells, they damage genes and cause skin cancer.
Sunscreen gel that protects your skin from UV rays
Do you think it's okay to use a shade and not apply sunscreen gel? Shades alone are not enough, and we recommend that you always apply sunscreen.
Since sunscreen gel is applied directly to the body, it protects against UV rays from any angle if there is no forgetting or unevenness. Be sure to apply sunscreen well on cloudy days as well as on days with strong sunlight.
What are "SPF" and "PA"?
Sunscreens are mainly composed of UV absorbers and UV scatterers.
Ultraviolet absorbers can absorb ultraviolet rays, and convert the absorbed ultraviolet rays into heat energy and release it to the outside. In addition, UV scatterers have the power to repel UV rays so that they do not hit the skin directly.
There are various types of sunscreens, from infants to men and women, but you need to purchase them according to your needs. Therefore, the values “SPF "and " PA " can be used as a guide.
Read to know: What SPF Sunscreen Should You Choose for Your Skin?
SPF (Sun Protection Factor)
SPF is an index that prevents ultraviolet rays B (UVB) that cause sunburn, and the efficacy of SPF is said to be around 20 minutes. The higher this SPF value, the longer the effect of blocking UV rays. Dermatologists recommend using Sunscreen gel SPF 50.
PA (Protection Grade of UVA)
PA is an index that prevents ultraviolet rays A (UVA), and is displayed in 4 levels according to the number of "+" such as "PA +", "PA ++", and "PA +++". The larger the number of "+", the stronger the effect.
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