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iHerb Customer Reviews

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Wonderful product

Posted by -Peri- on March 15 2016 | Verified Purchase

I am hypothyroid and despite being on medication my concentration and energy levels are somewhere down the drain (in addition of being hypo I am single parent and university student which drains all my energy and then some)... But not anymore! I have used this product for a week and I can say I have noticed increase in energy and regaining my cognitive skills slowly despite being highly sceptical about this! :)

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good stuff

Posted by lisofby on August 27 2012 | Verified Purchase

gotta like it, at night time.

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Works great!

Posted by iHerb Customer on March 15 2017 | Verified Purchase

Will order again.

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ok product

Posted by iHerb Customer on September 6 2016 | Verified Purchase

I have used this for months, 2 per day. works ok for me.

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Great with ALCAR

Posted by mozzer on April 8 2016 | Verified Purchase

Tyrosine is useful for energy by itself but I really liked when combined with 2-3 grams of ALCAR. Tyrosine gives you that energy boost and ALCAR helps focus and direct it.

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Posted by iHerb Customer on May 10 2014 | Verified Purchase

Good. Boost my concentration.

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Posted by LauraLeonard on July 27 2009 | Verified Purchase

I like this brand

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dindn't notice any diference

Posted by iHerb Customer on October 17 2012 | Verified Purchase

i took it some days but didnt notice anything

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Posted by iHerb Customer on August 20 2011 | Verified Purchase

Am yet to begin taking Source Naturals L-Tyrosine to assist toward thyroid function and the fact that I tend to be prone to depression. Will review later.

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