Research highlights greener way to make key sunscreen ingredient
A NEW ‘greener’ way to make a key ingredient used in many high end health and beauty products such as sunscreens has been developed by researchers in Yorkshire.
Engineers from the University of Sheffield have developed a new method to make zinc oxide, a mineral used for ultra violet protection, that requires 95 per cent less energy for a new sunscreen which they claim is more “sustainable”.
Researchers said the technique has the potential to “revolutionise” the raw materials industry, including to help manufacture more sustainable paint, tyres, batteries and sensors.
Dr Kyra Sedransk Campbell, the research lead from the University of Sheffield, highlighted that many high-end personal care products, such as moisturisers,
shampoos, soaps and sunscreens, are made with zinc oxide as they appeal to consumers who are keen to avoid chemical-based products.
However, the cost of these products puts them out of reach for many so globally most people opt for cheaper products, many of which contain chemicals that are hugely damaging to the environment.
She added in the case of sunscreens, the cheaper products often contain chemicals that have a devastating impact on marine life, such as the bleaching of corals.
Dr Campbell said: “The reality is that existing chemical-based sunscreens are damaging our fragile marine ecosystems, effectively killing coral reefs.
“Bans are already being put in place, but not fast enough. Whilst zinc oxide is a known alternative, in fact it was the original UVblocker, it currently is a high-end option you might struggle to find in your local chemist.”
She added: “Our process is a sustainable, green, low energy method that can make zinc oxide. What’s more is that we are cost competitive. Taken all together it is about using our know-how in the lab to protect our planet.”