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Sunscreen is known for its ability to prevent sunburns and skin cancer, but many dermatologists say it can also help reduce the signs of aging.
Over time, as time passes or you age, your skin begins to develop fine lines and wrinkles. This is a natural process that happens to every person. But did you know that 80 percent of the skin changes caused by aging are caused by the sun’s ultraviolet rays? The best way to avoid these is to stay indoors, in the shade or under permanent cover. Apart from this, you can also use sunscreen to prevent this.
Sunscreen is known for its ability to prevent sunburns and skin cancer, but many dermatologists say it can also help reduce the signs of aging. Learn how sunscreen can protect you from premature aging.
How do UV rays harm your skin?
UV rays are divided into two categories: UVA and UVB. UVB has shorter wavelengths and affects the upper layer of the skin. But, UVA rays are longer and penetrate deeper. Even if you are exposed to the sun through a glass window, these rays can harm your skin.
If you’ve been exposed to UVA and UVB rays for years, they can damage the cells in the top layer of your skin, called keratinocytes. This damage causes red, rough and scaly patches of skin called actinic keratosis.
Melanocytes are the cells that produce melanin and darken the skin. Melanocytes lie beneath the keratinocytes. UVA rays activate these cells, causing a suntan. Prolonged exposure to UV rays can damage melanocytes, resulting in permanent hyperpigmentation.
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UVA rays also destroy collagen and elastin. Due to this the elasticity and softness of the skin is lost. This causes wrinkles on the skin and makes the skin thinner.
How Sunscreen Prevents Signs of Aging
Sunscreen reduces the damage to your skin caused by the sun’s rays. Sunscreen prevents UV rays from penetrating your skin. For this you need to apply a sunscreen with high SPF. You can use any chemical or mineral sunscreen.
Mineral elements, namely zinc oxide and titanium dioxide, are elements that create a physical barrier. These reflect UV rays when applied to the skin. There are chemical elements such as avobenzone, oxybenzone, and homosalate that absorb UV rays after being applied to the skin. You should reapply both sunscreens every two hours.
We mentioned earlier that the sun has two types of rays, UVA and UVB. UVA rays are longer, UVB rays are shorter. SPF simply measures how well a sunscreen prevents sunburn, meaning how well the sunscreen can block low levels of UVB.
When it comes to buying a good sunscreen, you should look for a good SPF. You should use a sunscreen with at least SPF 50. It provides very good protection to your skin from the sun.
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