Everything is "potentially hazardous", Endie. It's potentially hazardous to walk in the sun, to breathe the air, to eat the food, to have sex. You need to gauge the practical likelihood of a problem by looking around you. Millions of American men wear a piece which they apply year-in year-out for decades, and yet concrete examples of anyone having an actual problem are very rare. When you do hear of a problem, it's almost invariably skin irritation which is cured by changing adhesives.

So don't worry, it's fine. The chances of you being killed by a rampaging buffalo are higher than of having a serious problem from using hairpiece adhesives (fake statistic there :-)