<<Disclaimer: Verify this information before applying it to your situation.>> the first comment in the summary that hairspray is ok because it is not absorbed by the skin is not accuate. One can get a reaction from a product containing gluten touching the skin [ex. shampoo, hair dyes, etc, etc, etc] or just breathing it in. Many of us have related walking past a bakery or pizza parlor and getting a reaction. Another thing to consider is the propellant....in most cases, it is alchol, which may be wheat based. Ann