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iHerb Customer Reviews

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Excellent quality

Posted by iHerb Customer on March 21 2011 | Verified Purchase

Provides a noticeable mood boost. This is a must for anyone with thyroid/adrenal issues. One of the few supplements that actually works. Don't overdo it though. I've found that one capsule taken first thing in the morning on an empty stomach (1 hour before eating anything) is all I need. There is another product from Thorne called Thyrocsin which has l-tyrosine in it, but it was impossible for me to take it on an empty stomach due to nausea from some of the other ingredients.

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Great product

Posted by iHerb Customer on September 18 2013 | Verified Purchase

Thorne research is a good brand and tyrosine is like coffee for my add symptoms

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very good product

Posted by iHerb Customer on May 19 2010 | Verified Purchase

I heard Thorne Research is the best brand there is, so I have decided to pay extra few bucks for the best. Taking it as my thyroid rutine every morning. Have no side effects what so ever from it and my thyroid definitely likes it as well.

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No Difference

Posted by iHerb Customer on February 13 2015 | Verified Purchase

I haven't noticed any difference when taking these.

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fast acting

Posted by iHerb Customer on January 31 2012 | Verified Purchase

fast acting, it works in abt 30mins, energy immediate

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Review L-Tyrosine (Thorne Research)

Posted by iHerb Customer on January 9 2012 | Verified Purchase

Great product, great quality and price is very competitive. The service iHerb offer is outstanding, delivery is fast and the whole process is so user friendly.

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Improves Dopamine

Posted by truevitality on November 12 2012 | Verified Purchase

L-Tyrosine,is a precursor to Dopamine a major neurotransmitter in the brain. Thorne is a brand I trust as it has no harmful excipients.

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Good Name

Posted by iHerb Customer on November 5 2017 | Verified Purchase

Suggested use is 1 capsule a day. I take two since my brain does not make serotonin. I paid a bit more for the name and my brain.

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Great vegan product

Posted by iHerb Customer on October 25 2017 | Verified Purchase

Can't live without my L-Tyrosine. I have tried many types, including powders, this one is the best. Easy to take, and no nasty fillers for me to worry about.

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Great for increasing alertness and thyroid support

Posted by iHerb Customer on January 26 2015 | Verified Purchase

Use this in the morning to help increase alertness. Also helps with my thyroid issues, along with taking iodine. Like this brand because no added unnecessary ingredients.

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