Link (http://www.medicalnewstoday.com/medicalnews.php?newsid=63312)
Repeated exposure to low doses of Tea Tree Oil a common ingredient in many beauty products can increase the chances of suffering from "superbug" infections, University of Ulster scientists have revealed.
They discovered that exposure to low doses of Tea Tree Oil make pathogens such as MRSA, E. coli and Salmonella more resistant to antibiotics, and capable of causing more serious infections.