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  | Hey Guys, have any of you guys used those bug spray wristbands or the sensor things people clip on their belt? Looks like a gimick but hoping they work better than typical stankass spray which leads me to my next question...what's do you think is the best stankass spray? |  |
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  Posts: 200
 
  Location: Minnesota | The Off clip on works for me.    
  
Granted, I haven't gone into the deep woods and tested it with giant pterodactyl sized skeeters yet, but the vampires in the city sure seem to stay away from it. |  |
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  Location: Eastern Ontario | My niece has a PHD in Pharmacology ( sp)and works in drug research. I recently emailed her about Defend insect patches or taking vitamin B1 below are portions of the emails  
  
 Hi xxxxx>  
> xxxxx  bought some Defend Insect Patches for me which are said to containe  
> 75mg Thiamine and last 30 hours. Does Thiamine have any effect on insects?  
>  
> Would taking Jamieson B1 100mg tablets have the same effect and be  
> worthwhile?  
  
Hi Uncle Frank,  
  
I looked into this a bit and this is what I found:  
  
Some old studies suggested that the ingestion of large doses of  
thiamin could be effective as an oral insect repellent against  
mosquito bites. However, there is now conclusive evidence that thiamin  
has no efficacy against mosquito bites.  
Vitamin B is often recommended in the popular media as a systemic  
repellent against mosquitoes. This information is especially prevalent  
on the Web. The results of a small number of published studies  
suggested that vitamin B complex supplements are not effective as  
repellents, but these studies were limited by the use of very few  
human subjects and only 1 species of mosquito, Aedes aegypti. We  
extended this work with the use of larger samples of human subjects  
and with Anopheles stephensi as the test organism. We tested whether  
ingestion of vitamin B supplements under various regimens affected the  
attractiveness of volatile skin components transferred to glass vials.  
Although there was substantial and consistent individual variation in  
attractiveness, we found no effect of vitamin B supplementation.  
  
You have to be careful about claims that companies make.  The Defend  
Insect Patches do not have to prove that they work...they only have to  
prove that they can't harm you.  Vitamin B cannot help against  
mosquitoes.  DEET has reigned as the most efficacious and broadly used  
repellent for the last 6 decades, with a strong safety record and  
excellent protection against ticks, mosquitoes, and other arthropods.  
Newer agents, like picaridin and natural products such as oil of lemon  
eucalyptus are becoming increasingly popular because of their low  
toxicity, comparable efficacy, and customer approval. If you want  
something less toxic than DEET, I would try Oil of lemon eucalyptus.  
  
  
  
>  
  Edited by horsehunter 7/7/2011  4:15 PM 
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