there are some great alternatives to these stinky sprays these days, such as bracelets doused in essential oils, patches containing the same thing, etc. but sometimes you just need that good old bug spray - which MUST be free from gluten in order to protect yourself. sprays are the most dangerous, because once they hit the air, there's no telling where it will end up! here is an letter from the company who makes off insect repellent: this is the kind of response that makes me a little nervous - they are clearly doing everything they can to not say that it's gluten free. this doesn't always mean that it's not, it just means that for some reason, they don't want to put themselves on the line. my guess is either they haven't taken the steps to ensure that everything to do with this product is gf, or that they make other products containing gluten and can't guarantee that this product hasn't been contaminated. i, myself, would stay away from this product for this reason - we just can't be sure. to be honest i can't find a list of gf bug sprays that i feel confident in, so my suggestion is to pick the one you'd like to use, and call or email that company. for tips on how to go about doing that, see gluten free 101.