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iHerb Customer Reviews

$12.10

$18.99

Savings of: $6.89 (36% off)

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For tyrosine intermediate

Posted by Reviewer2918349 on Oct 23, 2010

The cost performance is a maximum level, but The taste is not good. 味は期待しないほうがよいがコストパフォーマンスは最高レベル

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Good product for tiredness and improving thyroid

Posted by Reviewer2354141 on Jan 07, 2011

Always have a teaspoon in a glass of water before eating (breakfast). Helps thyroid function. Only complaint is powder could be finer.

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Good for concentration

Posted by Reviewer2069137 on Feb 08, 2011

helped me concentrate/helps with athletics

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good

Posted by 4944060488251425667 on Aug 25, 2013

good product but a bit gritty...

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Good

Posted by Reviewer2800481 on Dec 02, 2014

Seems to be good. Taking so many things its hard to tell

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Very interesting, definitely useful on dull and dreary days!

Posted by 5249498575345316039 on Feb 18, 2016

I've been having a lot of motivation problems lately, but not anymore! When I take this I feel euphoric for a couple hours, and then just plain good for most of the day. Best to use it only when needed though, as I have found the effects aren't as strong or beneficial if taken daily.

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Bigger is better

Posted by Reviewer1705277 on Jul 20, 2008

No complaints but bigger size is better.

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