Nature offers answer to new sunscreen formulations

Nature’s own UV suncreens could be used in the development of more natural sun protection formulations.  The compounds used to protect organisms in oceans and lakes increase where UV levels are high.

Swansea University research has provided a new insight into the behaviour of nature’s own UV sunscreens when they are exposed to other parts of the light spectrum. Mycosporine-like amino acids (MAAs) provide screening against the damaging effects of ultraviolet radiation in living organisms in our oceans and lakes, explains a statement.

These compounds are known to increase in the environment where levels of UV are high. But the new study has found that these compounds are also increased when living cells of algae are exposed to light at the far-red end of the light spectrum.

Whilst it is widely known that UV light increases the concentrations of MAAs no-one had investigated the effects of other regions of the light spectrum.

The study’s author Professor Carole Llewellyn, from the Faculty of Engineering and Science, said: “It is interesting that the far-red light plays a role in the production of these UV sunscreen compounds and highlights how different regions of the light spectrum play an important role in maintaining a healthy balance within cells”.

Photo: Flickr Creative Commons

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