|Thiamine, Vitamin B1 and the Mosquito|
|Written by Bean|
Thiamine, The Natural Mosquito Insect Repellent!
This section on Thiamine, Vitamin B1 as a Natural Mosquito Insect Repellent concludes that it is still suspect as to whether or not it is an effective measure. I ask that anyone who has tried this technique please respond to this post with either their success or failure.
It is well known that within a group of people, some folks are pin cushions with mosquitoes and others don't seem to get bit at all. In analytical tests conducted with Thiamine as a Natural Mosquito Insect Repellent, the variation in the ratio of those bitten by mosquitoes and those not bitten was consistent in both the control samples (humans) and thiamin toting samples (humans).
Old Wives' Tale?, Thiamine as a Natural Mosquito Repellent!
This entire discussion doesn't even fall under proving or disproving an "Old Wives' Tale". Thiamin as a Mosquito Repellent is but a recent phenomenon. We think it originated in Mosquito infested Australia, but there are some who claim Canada's Mosquito Country as the origin. Any bits of information you can provide on this point would be appreciated as well. Now, we can take the perspective of a 24 year who would say "Back In The Day" and thus anything from 3 years and back would qualify as an "Old Wives Tale." The reality is that the only way that it could be an old wives tale is that those who have eaten foods that are extremely Thiamine or Vitamin B-1 Rich have found this claim to be true over the centuries.
Claims for Natural Mosquito Repellent with No Data to Back it Up!
You will note that most sing the same song, but none cite hard evidence. I can tell you that if it works, great!, but quite frankly there is currently no hard data.
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Some studies suggest that taking large doses of thiamine is effective in reducing mosquito bites. This safe vitamin apparently produces a skin odor that is not detectable by humans, but is disagreeable to pregnant mosquitoes. It seems to be especially effective for hypersensitive allergic individuals. Reducing Mosquito Bites Not Detectable
INSECT PROTECTION - Studies suggest that taking large doses of thiamine is effective in reducing mosquito bites. This safe vitamin apparently produces a skin odor that is not detectable by humans, but is disagreeable to pregnant mosquitoes (Pediatric Clinics of North America, 16:191, 1969). Thiamine Studies Not Detectable
I have searched for the following Citation from the Pediatrics (Pediatric Clinics of North America, 16:191, 1969), and although it is referenced in Wikipedia as well as in this snippet the actual document is nowhere to be found. Google also provides results for thiamin in the SERPS for that search.
INSECT REPELLANT Some studies suggest that taking large doses of thiamine is effective in reducing mosquito bites. This safe vitamin apparently produces a skin odor that is not detectable by humans, but is disagreeable to pregnant mosquitoes (Pediatric Clinics of North America, 16:191, 1969). It seems to be especially effective for hypersensitive allergic individuals. Thiamine takes about 2 weeks before the odor fully saturates the skin. Apparently Thiamin
Of course I cite our site-Thiamine a Natural Mosquito Repellent?
The following thiamine update addresses the question whether supplementing with Thiamine B1 is a Natural Mosquito Repellent alternative to common chemical applications. Due to allergies, sensitivity and hypersensitivity to some chemical applications and of course the potential adverse health and environmental effects, this application would be a shining alternative. Natural Mosquito Insect Repellent
Okay, Vitamin B1 as a Natural Mosquito Repellent Claims, without Substantiation!
Unlike other repellents that only protect the area of skin to which spray or cream is directly applied, the OmeZone Insect Repellent Patch protects the whole body. It does not contain any "nasty chemicals" like DEET or permethrin - it is 100% natural containing only Vitamin B1 Thiamine. Does Not Contain Repellent?
A: This proven Australian formula, which has been used for over 50 years, is now available in the United States as a convenient patch that follows the uniform absorption of the natural vitamin supplement B1 (thiamin) that helps prevent insect bites. Thiamin, like other B vitamins helps the body function. Excess thiamin is eliminated not only in the urine but is excreted through perspiration as well. So, Vitamins taken internally through your digestive system, will just run right out of you in a few hours. Facts and Fiction
Thus, the repellant patch is a natural based formula that reduces or prevents most insect bites. Research has shown that Thiamin (vitamin B1), the key ingredient in the Insect Repellent Patch, when topically applied, actually helps repel insects such as mosquitoes and biting flies. The thiamin-based formulation of the Insect Repellent Patch works with the body's own chemistry to create an invisible protective "barrier" that shields the user from mosquitoes and other biting insects. Mosquito Repellent Invisible
Here is Real Information, Diseases from Mosquitoes
Mosquitoes are an important vector in the transmission of diseases such as Malaria, West Nile Virus, Yellow Fever, and Dengue Fever. Getting these diseases from a mosquito bite will depend on the geographic prevalence of the disease and the species of mosquitoes in that area. During a mosquito bite, mosquito saliva is injected into the bite as a local anesthetic and anti-coagulant. The female mosquito then proceeds to feed on the host blood. This exchange of mosquito saliva and blood is an excellent opportunity for pathogens to spread from mosquitoes to humans, and from humans to humans using mosquitoes as an intermediate. Mosquito Saliva and Pathogens
I cite ThiaminVitamin.com again, with humor!
More claims that thiamin Vitamin B1 is a Natural Mosquito Repellent come from several thiamin patch suppliers. The patches are thiamine enriched so that trans-dermal absorption of thiamine occurs through the skin. Ironically, an increase in Thiamine has been shown to increase brain function (memory). Vitamin B1 a Natural Mosquito Repellent
Well, here it is. There are studies that show that an increase in thiamine consumption has had a positive effect on increased memory capability. Thus, you should be able to remember to take Vitamin B-1 supplements which makes the patch irrelevent.
The Mosquito Repellent Patch Claims
A: The Insect Repellent Patch keeps mosquitoes and biting flies from feeding on you. It does not work on spiders, chiggers, ticks, and has some limited effect on fleas. It Does Not Work
Apply one patch to a clean, dry, hairless area of skin. The OmeZone Insect Repellent Patch will become effective approximately two hours after application. One patch is effective for up to 36 hours. Effective Approximately
An Interesting Natural Mosquito Repellent Alternative
This particular application does not include Thiamin as the Vitamin B1 alternative for Mosquito repellents, but it is interesting.
Researchers have reported that nepetalactone, the essential oil in catnip that gives the plant its characteristic odor, is more effective at repelling mosquitoes than DEET (5). A patent application for the use of catnip compounds as insect repellents was submitted by the Iowa State University Research Foundation. Catnip Natural Mosquito Repellent
More claims of Mosquito Repellency by Thiamine, with no substantiation
The BugOff patch Borland developed is a transdermal patch, much like the stop smocking patches that allows the uniform absorptions of the natural supplement, B1 (thiamin) that helps prevent insect bites. If used properly, the patch delivers up to 48 hours of protection from biting insects. Proof of Protection?
Now, This one is just as interesting. I wonder if there is any data with the thiamine removed from the mix?
The use of topical vitamin B1 (thiamine) may be an effective compound in the repellency of mosquitoes and other biting insects. Thiamine is an abundant, low cost, safe compound that can be easily stabilized in topical formulations. A novel application for the use of topical thiamine as an insect repellent is described herein. Repellency of Mosquitoes
Remember this Mosquito Repellent Faux Pas. People still believe.
For decades rumor has held that Skin-So-Soft Bath Oil is an effective counter to mosquitoes, yet a 1993 Consumer Reports analysis found it ineffective for that purpose. Because so many people were buying the product for its purported mosquito combating properties, in 1994 Avon added a non-DEET repellent and a sunscreen to the popular bath oil and began marketing the new concoction as Avon Skin-So-Soft Bug Guard Repellent. Combating Mosquitoes
Amazingly, mosquitoes are attracted to the carbon dioxide that leaves your body when you exhale or perspire. They can sense it from far away. There's nothing you can do about this after all, you have to breathe! That's why there's Omezone, the topically applied insect repellent patch that's always ready to protect you and your family at a moment's notice no matter what the circumstances! Mosquitoes
Perhaps an answer to the above question. This discusses the concentration of thiamin in the mix.
Such topical thiamine component of a final formulation is particularly effective when thiamine concentrations exceed 0.01% w/v in the topical mixture, and its use is preferred when concentrations are between 0.1 to 30% w/v thiamine. Said formulation is increased in effectiveness for insect repellency when additional ingredients are also added which are also known to provide insect repellency. Thiamine Insect Repellency
This page is written in the hopes that Thiamin Vitamin B1 is a Natural Mosquito Repellent. But, before we will make any claims towards this end, there must be some hard data that supports it. Quiite frankly the claim that thiamine is a natural mosquito insect repellent abounds in all popular media, but quite frankly not any citations to prove it true exist. All of the data, if true, is subjective.