11/12/2023 0 Comments Zuckerberg sunscreen face![]() ![]() In the era of coronavirus, you might think that a face covering provides a ready-made protection against sunburn, but much depends on the material. Take particular care when using a transparent product, says Dr Wedgeworth: while they are “cosmetically elegant”, it is harder to see which areas of your skin are covered. Around 10 per cent of malignant skin cancers begin on the eyelids. In 2017, scientists at the University of Liverpool found that three-quarters of sunbathers are failing to apply any sunscreen to the area between the inner corner of the eye and the bridge of the nose, while one in seven left their eyelids unprotected. It is important to cover any area of the skin exposed to the sun, including hands, feet, and around your eyes. If you’re on a beach and exposed to sunlight all day, then “every couple of hours is sensible”, but if you’re just popping out to the shops then once should be enough. In terms of how we should be applying our sun protection, Dr Ross Perry, medical director of CosmedicsUK, recommends “regular and bountiful application”: put it on 15 minutes before going outside, he says, and then use common sense regarding top-ups. “You can still have a decent level of protection and not look that white - but you do need to apply a significant amount of product.” So it could be that Zuckerberg was just following dermatologist’s orders with his lashings of cream, although Dr Wedgeworth thinks he was wearing zinc oxide, a physical sunscreen (rather than a chemical one) which sits atop the skin. People are using so much less than that, and that often means you only end getting half of the protection,” she says. “If you buy Sun Protection Factor (SPF) 50 and you want that level of protection, then you have to apply the dose used in laboratory conditions to test that product - that’s about 2mg per centimetre squared, and equates to about a 30ml shot glass per application. Putting it on too infrequently or in too little quantities runs the risk of getting burnt." Studies have shown people apply less than half what they should for the packet's stated protection, so even if you're using SPF 100, it won't do its job and block out 99pc of rays unless you've slapped it on. "People try to cut corners, to not get burnt but get a bit of a tan, so they hedge their bets a little. "The main thing is regular and bountiful application," says Dr Perry. ![]() ![]() But correct appliance of sun block is crucial to ensuring it actually protects you. We all remember our childhood summer holidays, running away from parents on beaches while they chased you with a bottle of Nivea spray. Dermatologists will often suggest that applying factor 30 liberally is better than a thin layer of 100. But there's another factor to consider: application. Ultimately, it's your choice.įor most, SPF 30-50 is normally considered sufficient, depending on your skin type (the fairer the higher) and how strong the sun is. From that alone, you may infer that SPF 100 isn't particularly necessary over, say, SPF 50 – unless you're so intent on maintaining a white complexion that the extra per cent of sun that it blocks matters. ![]()
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