Because quite a few people have latex allergies, hairstylists often prefer vinyl gloves over latex gloves. Hair glue and certain condoms often are made of latex; so people with latex allergies should tell their hairstylist during the first consultation and at every visit. Of course, the condoms have nothing to do with hairstyling, but the hair glue and the disposable gloves can be a medical threat.
According to California Proposition 65 Warning as seen on the Diane by Fromm box pictured above, some vinyl gloves are made of vinyl chloride which has been shown to be cancer causing and harmful to one's health. However, before we get too un-nerved, I was told unless you are heating up the vinyl gloves or eating the vinyl glove, you should be safe. Of course, food service handlers who pick up hot foods such as sandwiches could be introducing vinyl chloride into the food if the gloves contain a "vinyl chloride."