Researchers say cosmetic tester in beauty counters
such as lipstick, moisturizer and mascara are commonly contaminated by the
E.coli bug. In their two-year
investigation, the researchers found the highest levels of bacteria were
present on Saturdays, the biggest shopping day in the week. As well as E.coli – which causes stomach
cramps and diarrheoa and, in severe cases, can be fatal – staphylococcus and
streptococcus bacteria were found, which can cause infection. Women could also be unknowingly passing on
viruses such as herpes to shoppers.