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Sunlight can cause wrinkles?

Many may not be aware, but the sun and wrinkles are closely related to each other. All that tanning you did as a child is now showing up on your face and the rest of your body. But what is is the relationship between the sun and your wrinkles? It is a fact that exposure to ultraviolet light, whether UVA or UVB, that is derived from sunlight, accounts for 90% of the symptoms of premature skin ageing. 

Dermatologists scream their loudest about the ageing effects of too much sun

Since most of the photoaging effects occur by the age of 20, the amount of damage to the skin caused by the sun is determined by the total lifetime amount of radiation exposure and pigment protection. They say that most sun damage is done while you are a child and the reason is the lack of using sunscreen. The sebaceous glands in the dermis layer of your skin provide the oil that forms a protective coating for the epidermis or outer layer of skin everyone sees. When subjected to too much sun, these glands are not able to provide enough oil to contract the drying effects of the sun and the damage is done to all three layers of your skin. Just think how something as simple as a sunscreen to help slow down the ageing effects of the sun.

Prolonged exposure to the sun causes the collagen in the dermis to break down at a higher rate than just chronologic ageing. The sun can cause rough red spots on older ladies and men that are not only ugly but there is a good chance they could be precancerous. As the sun continues to be the principal suspect in causing wrinkles, the most important skin-care product available to prevent wrinkles is sunscreen, but most people do not use sunscreen correctly. It needs to be applied at an early age.

It would be best to consider the important factors with sunscreen use, especially with the spectrum of UV radiation absorbed, the amount of sunscreen applied, and the frequency of application. SPF 15 or higher is best. As mentioned earlier, the sun gives off ultraviolet (UV) rays that can be divided into categories based on the wavelength. UVC radiation is absorbed by the atmosphere and does not cause skin damage, while UVB radiation affects the outer layer of skin, the epidermis, and is the primary agent responsible for sunburns. UVB does not penetrate glass and the intensity of UVB radiation depends on the time of day and season.

UVA radiation, on the other hand, penetrates deep into the skin and works more efficiently and cannot also be filtered by glass, but overexposure to UVA can also be dangerous. The intensity of UVA radiation is more constant than UVB without the variations during the day and throughout the year. Regardless of their wavelengths, both UVA and UVB radiation can cause wrinkles as it breaks down collagen, creating free radicals, and inhibiting natural repair mechanisms of the skin.

A classification system of sun-sensitivity is the Skin Phototype (SPT) classification, which is being used to determine the potency and spectrum of protection that sunscreen formulations help protect from this radiation, as well as inhibit, if not minimize, wrinkles. People with skin types I and II are at the highest risk for photoaging effects including wrinkles and skin cancer, thus the proper use of sunscreen to block both UVA and UVB radiation is important in the battle against wrinkles. As promised, the relationship between the sun and wrinkles has been established and the age-old age still holds true that says, an ounce of prevention is better than a pound of cure. So wear your sunscreen!

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