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World-First Research Shows Daily Sunscreen Use Will Slow the Ageing Process

While we all know that using sunscreen prevents skin cancer, Queensland research shows it has the added benefit of slowing the ageing process.

A world-first study by the Queensland Institute of Medical Research (QIMR) which involved 900 young and middle-aged men and women showed that after four-and-a-half years, those who applied sunscreen most days had no detectable ageing of the skin. They also had 24 per cent less skin ageing than people who used sunscreen only some of the time, if at all.

The study was led by Queensland Australian of the Year, QIMR’s Professor Adele Green, in collaboration with investigators at the University of Queensland’s School of Population Health.

“This has been one of those beauty tips you often hear quoted, but for the first time we can back it with science: protecting yourself from skin cancer by using sunscreen regularly has the added bonus of keeping you looking younger,” Professor Green said. “And the study has shown that up to middle age, it’s not too late to make a difference.”

The research – part of QIMR’s long-running Nambour Skin Cancer Prevention Trial – involved half of the participants regularly using SPF15+ sunscreen on their face, arms and hands and the other half using sunscreen in their usual way, if at all. Silicone impressions, or moulds, were taken from the backs of all participants’ hands at the start and end of the trial to grade the damage over the four and a half years of the study.

The participants were all aged under 55, to ensure that photo-ageing, rather than chronological ageing, was the major factor in skin changes.

“And of course, along with seeking shade and wearing clothing cover, sunscreen is a mainstay of sun protection. It prevents sunburn in the short-term and skin cancer in the long-term,” Professor Green said.

The study also tested the theory that beta-carotene supplements can prevent skin ageing. “Our findings suggest that beta-carotene supplements do not influence skin ageing, although we can’t rule out the possibility of a small difference for better or worse. There would need to be further study into beta-carotene to rule out benefit or harm,” Professor Green said.

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Alana Lowes

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