Dermatologists wear lip gloss after dark because anything shiny acts like a magnifier and increases the penetration of sunlight. Since we constantly lick our lips, SPF based lip balms should be constantly reapplied while outdoors.
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UV exposure from car windows can damage your skin. Studies have shown that side windows allow 25% more UVA rays associated with skin cancer and skin aging more than even windshields. Windshields are built in such a way to block 95% of UVA. However, most car windows will also block out UVB rays also associated with skin cancer and sunburn.
Dermatologists advise on increasing UVA protection by adding UVA protection films to car windows but one should check with laws of the particular state that differ in respect of tinted windows. Always keep a powder sunscreen in your glove compartment to spray on your hands which is always on the driving wheel and prone to sunburn and age spots. Since you know how dermatologists protect their skin from the sun perhaps you could try it too.
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