Source Naturals B-1Thiamin -- 100 mg - 250 Tablets
Not sure yet
I did some research on natural insect repellent because I'm highly allergic to Off and other mosquito sprays. Apparently, those with diets high in B1 Thiamin have less of a problem with biting insects. I've been told that the vitamin has a cumulative affect so it takes 2 weeks to see the results. I'm not quite at 2 weeks so I can't really say if it's working or not. However, I don't guess it can really hurt anything, right?
September 12, 2008