http://www.bbc.co.uk/news/uk-wales-south-west-wales-39923446#

UV protective algae could be used as a sustainable alternative to sunscreen, research at Swansea University has discovered.
There are hopes microalgae, which cannot be seen by the naked eye, could replace synthetic sunscreens.
The natural products, found in the sea, have a high absorbance of damaging sun rays.
Dr Carole Llewellyn, who has led the research, said algae sunscreen would be better for the environment.
“What we found is that algae have their own process of protecting themselves against the damaging ultra-violet rays,” said Dr Llewellyn, an associate professor in applied aquatic bioscience.
“We’re really interested in finding out how they do this and applying it to products we want to use.
“There’s increasing evidence that some of the synthetic sunscreens are quite harmful to the environment when they wash off in the sea.
“Many sunscreens are produced from petroleum sources and the industry is looking for something more sustainable.”

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