How does sunscreen work to protect your skin against both of these harmful types of radiation? It depends on the product you use. Thanks to this breakdown in elastin, your skin may begin to develop more wrinkles and lines. Protective makeup products like this SPF 35 lip shine can help add another level of protection against these daily UV exposures.
These 5-minute increments where our skin goes unprotected can build up over a lifetime, and may prove to cause more damage than summer days spent at the beach when sunscreen is more liberally applied.
Be sure to apply sunscreen every morning , regardless of what your day has in store. Your skin tone plays a significant role in determining your UV sensitivity and skin cancer risk. Why is this? People with darker skin have a higher number of melanocytes, which are cells that produce melanin. Melanin helps block damaging UV rays, so those with naturally darker skin are less likely to get sunburned, while those with lighter skin are more likely to burn.
Skin tone also plays a crucial role in determining skin cancer risk; fair skin is more susceptible to skin cancer, while those with deeply pigmented dark brown to black skin experience skin cancer relatively rarely. The climate in your area and time of year both affect the likelihood of sun damage. Learning how sunscreen works means understanding just how much risk you face of sun damage. At a microscopic level, the skin is a series of peaks and troughs.
Layering on sunscreen around 20 minutes before going into the sun allows the product to flow into the troughs and bind properly to the skin. Many sunscreens recommend reapplying every two hours. But another way to look at it is like painting a wall of your house. And this will cover the bits you may have missed, or covered too thinly, on first pass.
Also, use it generously. Most people use too little between a quarter and three-quarters of the amount of sunscreen necessary to achieve the sun protection claimed on the label. A teaspoon per limb is a good rule of thumb. Add another teaspoon for your face, front and back. This comes to seven teaspoons 35ml in all if you are at the beach in board shorts or a bikini. Layer it on and spread it around. Reapply every two hours or more often if you are active sweating, towelling off, skin making physical contact with anything that might rub it off , even if the bottle claims four-hour water resistance.
Use other things to protect your skin too. Hats, shade, clothing and even staying indoors at the highest UV periods. Physical particles, such as zinc oxide and titanium dioxide, are used to reflect UV radiation from the skin. At the same time, complex chemical ingredients in sunscreen react with radiation before it penetrates the skin, absorbing the rays and releasing the energy as heat.
UVB radiation is the main cause of sunburn and skin cancer. UVA rays, on the other hand, penetrate more deeply into the skin and were once thought to only cause skin aging and wrinkling.
Studies have shown that overexposure to UV rays can lead to sunburn, skin aging and wrinkling and skin cancer in all skin types and dermatologists recommend sunscreen as a way to help combat that. Dermatologists assert that both physical and chemical sunscreens are safe to apply and should also be worn indoors because UVA rays—which have a longer wavelength and can penetrate deeper into the skin—can pass through windows as well.
When picking a sunscreen, make sure it is one you feel comfortable wearing. If you have sensitive skin, you might prefer a fragrance-free sunscreen.
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