This article suggests that common moisturisers could cause skin cancer. The possibility was uncovered by accident when scientists were looking at the benefits of caffeine on the skin. During the test they applied moisturiser to the test subjects, mice who had been exposed to ultraviolet light. They discovered that the moisturiser increased the production of tumours. Three other moisturisers also increased the production of tumours by 69%. The cancers were generated were non fatal varieties that would usually be treatable but following these surprise results researchers will now go on to study the implications for humans.