08
Feb
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Several widely used moisturizers may increase the risk of developing certain tumors of non-melanoma skin when applied to mice exposed to ultraviolet radiation.
Although the skin of mice is very different from humans, research published this week in the Journal of Investigative Dermatology, may explain the incidence of some types of skin cancer in people.
A team led by Allan Conney, from Rutger University in New Jersey (USA), used a hairless mouse model to induce skin cancer melanoma as that caused by excessive sun exposure.
The scientists exposed the mice to ultraviolet radiation to achieve the same effects with exposure to sunlight and, after stopping the process, applied to rodents four different brands of humidifiers.
Mice treated with any of the four brands showed a higher rate
of tumor formation than those not receiving such treatment.
The experts considered some of the ingredients used in creams for those who thought that such training could increase the skin.
A new humidifier prepared without these ingredients proved to have the same deleterious effect in mice exposed to ultraviolet radiation.
Scientists do not want, however, be overly alarmist and indicate that has not been studied what the effect of these humidifiers, not mice, but in people.
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