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May 5th, 2010
The science of cosmetics
...recent UCLA research has suggested that cosmetics containing nanoparticles may pose health concerns other than skin problems for cosmetics users. Data from a study at the UCLA Jonsson Comprehensive Cancer Center conducted by Robert Schiestl, a professor of pathology, radiation oncology and environmental health science, suggested that nanoparticles can be detrimental to a person's health.
The study's researchers found that titanium dioxide nanoparticles, found in cosmetics and also many household products, caused inflammation and damage in genes and chromosomes of mice when the particles were ingested at high doses, said Benedicte Trouiller, the first author of the study and former researcher at the UCLA School of Public Health.
There is no knowledge about how the body gets rid of nanoparticles in household products and cosmetics, meaning that they could accumulate and cause health problems, she added. Compared to the control group of untested mice offspring, the offspring of mice that ingested titanium dioxide inherited DNA damage.
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