How necessary is “sunscreen” even if you don’t leave the house?
- ultraviolet rays (Ultraviolet: UV) types UVA and UVB are the main causes that cause negative effects on the skin. Free radicals are created. Wrinkles and sagging and sunburned skin including skin cancer
- UVA rays can pass through glass into buildings. There’s also blue light from cell phones and computer screens. So even if you’re indoors. You should apply appropriate sunscreen as well.
- You should choose a sunscreen that has protection properties from both UVA and UVB light, which can be observed from the SPF and PA values, respectively. You should choose an SPF level of 30 and a PA value of 3+ or higher.
Usually, applying sunscreen is a daily routine included in the skincare routine that many people do before leaving the house for work. But when a new outbreak of the COVID -19 disease occurred. Causing most people to have to work at home or Work From Home (WFH). The question arose: In fact, if you have to work at home? Didn’t go out in the sun anywhere. Do we still need to apply sunscreen?
Sunlight and UV rays How does it adversely affect the skin?
Dr. Peerathida Rattakul, a physician specializing in skin diseases Using lasers to treat skin diseases cosmetic surgery and adjust the facial shape with fillers. Samitivej Sukhumvit Hospital states that sunlight or the sun is one of the main causes of damage to skin cells. It causes free radicals, skin inflammation, loss of collagen under the skin, darkened skin, freckles and increases the risk of skin cancer. Sunlight consists of infrared light (infrared), visible light (visible light) and invisible light (invisible light) that is ultraviolet rays. (Ultraviolet: UV) or UV that we are familiar with.
There are 3 types of UV rays in sunlight: UVA, UVB, and UVC. UVC rays are mostly absorbed, reflected, or completely destroyed by the earth’s ozone layer. Therefore, they do not have much effect on the skin. Therefore, here we will talk about the first two types of rays, UVA and UVB, which are the main causes of many skin problems.
- Ultraviolet A or UVA rays can be divided into UVA-I and UVA-II. Sunlight contains up to 95% UVA. UVA rays have a harmful effect on the skin. Makes the skin wrinkled, sagging, wrinkles, dark skin, and dark spots. and the creation of free radicals Indirectly affecting DNA genetic mutation and can cause some types of skin cancer
- Ultraviolet B or UVB rays are rays that cause burns or sunburned skin, inflamed skin, and premature skin aging. It is also an important factor that can cause skin cancer. If you leave your skin exposed to sunlight often Especially the sun during midday or afternoon. Or when the sky is clear, there are few clouds, and there is no good protection.
Applying sunscreen Is it necessary when staying at home?
If you have to work in the house Didn’t go anywhere Many people may have doubts about whether Do I still have to apply sunscreen? Some people may think that since it is not exposed to the sun, there is no need to apply it. But some people may still be concerned about UV light from household appliances such as fluorescent lights, televisions, or computer monitors.
In fact, these devices emit almost no UV rays. Or if there is, it is at a very low level. There is no negative effect on the skin in any way. However, what you need to worry about is more UVA rays from light that comes in through windows or glass. If it’s clear glass, UVA light can pass through up to 75%, while in tinted glass or reflective glass, UVA rays can pass through up to 25-50% (UVB rays cannot penetrate glass).
Therefore, even though home electrical appliances emit almost no UV rays, if you want to protect your skin from sunlight that may penetrate through windows or glass while in the house. It is recommended that you should always apply sunscreen. By using sunscreen with appropriate SPF and PA values (SPF 30 and PA 3+ or higher) and closing the curtains. Try to sit as far away from the window as possible. Or change to using laminated glass instead of clear glass. and install a light filter film to filter UVA rays that pass through the glass. Including avoiding being in areas where the sun shines. It will help prevent UVA rays that can harm the skin.
Choosing sunscreen
- Choose a sunscreen that protects against both UVB and UVA light, which can be observed from the SPF and PA values, respectively. You should choose an SPF level of 30 or higher and a level of PA 3+ or higher (according to EU standards in the principles of sunscreen product development).
- Choose product textures and properties that are appropriate for the activities you do. If working at home It is recommended to choose a texture that is comfortable on the skin. Not too heavy on the skin and does not cause blockage It may not be necessary to choose a waterproof or sweatproof model because you do not do activities that involve a lot of sweating.
- You should choose sunscreen that suits your skin type. For example, if you have oily skin, choose a gel or lotion type. or the texture that we like
- Choose a sunscreen that can block infrared rays (IR), or heat rays that we are directly exposed to, and blue light (BL) that comes from computer screens, mobile phones, and tablets.
- Choose a sunscreen that does not contain occlusive agents such as Lanolin, PG, or Propylene Glycol, which can cause acne. I want it to be easy to help. It is recommended to choose a physical sunscreen that contains ingredients such as Zinc Oxide and Titanium Dioxide because they clog pores less. and is not absorbed into the skin.
- If after using it there are negative effects or allergic reactions or rashes occur, stop using it immediately.
- Choose a sunscreen that doesn’t cause acne. No preservatives, no fragrance.
- Choose a sunscreen that doesn’t contain alcohol. Because it will make the ufabet https://ufabet999.app skin dry.
Applying appropriate sunscreen
- If working at home Stay in the shade all the time and you don’t sweat. It may not be necessary to reapply sunscreen every 2 hours. But if you must go out in the sun, you should reapply sunscreen every 2 hours, regardless of whether the sunscreen has SPF or PA. Whatever
- The appropriate amount of sunscreen for one application on the face should be squeezing out no less than 2 milligrams of sunscreen, or approximately 2 knuckles/10 baht coin if it is in liquid or spray form. Should be used in larger quantities than cream.
- Besides the face Don’t forget to apply sunscreen to your neck, ears, and body.
- If you use chemical sunscreen, you should apply it at least 30 minutes before going out into the sun. But if you use physical sunscreen, you can apply it and be exposed to the sun right away.
It can be seen that sunscreen acts like a shield to protect the skin from being damaged by UV rays in the sun. Therefore, it is recommended that you apply sunscreen with appropriate SPF and PA values every day. Even though that day we have to work or stay in the house all the time. Together with other protections such as installing light filtering film on the glass, this is to protect the skin from wrinkles, dark spots, and premature aging of the skin.