29 Nov '11, 1pm

Nano-sized chemical in sunscreen, cosmetics could cause cancer, say scientists #Singapore

Companies in the cosmetics and sunscreen industry may need to rethink the use of nano-sized zinc oxide in their products, warned a group of scientists on Tuesday. Preliminary research has found that the chemical, when used in its tiniest form, could enter human cells, damage the cell’s DNA and cause cancer, according to researchers from the Nanyang Technological University (NTU) and National University of Singapore (NUS). They noted, however, that there’s no cause for alarm yet because the study, which was published in the November edition of Biomaterials , a top journal in the field, is still in its early stages. Known for its effectiveness in protecting the skin against ultraviolet (UV) light , zinc oxide is frequently used in sunscreens and cosmetic creams that boast of strong UV protection. As the compound also fights odours and bacteria, it is used in fabrics and food...

Full article: http://sg.news.yahoo.com/nano-sized-chemical-in-sunscreen...

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