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iHerb Customer Reviews



Savings of: $2.54 (36% off)

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Good Quality

Posted by 4953209479533855644 on Dec 06, 2015

Very good quality and good price.

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verry good

Posted by 5101983861006911087 on May 20, 2015


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Take this every day

Posted by Reviewer1540214 on Aug 30, 2014

I really like B1, take it every day.

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No More Mosquitos

Posted by 5102247090103082160 on Jun 06, 2014

I bought this specifically so I wouldn't get bit by mosquitos. I've been taking it about 3 weeks. So far I have'nt been bit one time. And I've been in some pretty bugged-out areas. I hope it works all summer.

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1 person found the following review helpful


Posted by 4653470012055826615 on May 10, 2014

Been taking conscientiously with other supplements, cant actually tell if it is beneficial on its own but on the overall, i do see my health improved.

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Good one

Posted by 5277064088413666219 on May 03, 2014

high quality, small, comfortable for swallowing.

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1 person found the following review helpful

Caution for hypothyroid, low blood sugar and immune dysfunction - B1 is an iodine, magnesium and manganese antagonist

Posted by Health-Is-Wealth on Jan 11, 2014

Vitamin B1 - iodine, magnesium, manganese and copper antagonist (among others) - all in some way essential for thyroid/endocrine health. High doses of B1 can therefore lead to: immune dysfunction, hypothyroidism if iodine intake is inadequate; hypothyroid/low blood sugar if manganese intake is inadequate - especially when combined with higher intakes of other less-obvious iodine/manganese antagonists such as niacin, B6, magnesium, calcium, vit C, boron, etc. Additionally, B1 is an essential cofactor for transketolase - suggest caution for people who take medications that also upregulate transketolase (e.g. asthma steroids), because more B1 may lead to depletion of other co-factors and essential nutrients (e.g. EFA's), creating a nasty catch-22 situation. B1 is also mildly anticholinergic - something to be mindful of, because for some people that can be an issue. High intake of B1 is also likely to cause/contribute to bad armpit BO. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.

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53 people found the following review helpful

Why spends more

Posted by 5351528217757725055 on Sep 01, 2013

Excellent for the price

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Great Product and Great Price

Posted by 4868133222369267243 on Jul 10, 2013

I take these twice a day per a special healing foods diet I am on, and these B-1 tablets are great.

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B-1, 100mg

Posted by Reviewer1488008 on Jun 01, 2013

a must when is white tongue

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