I've been suffering from depression for the last 10 years and this product helped me to laugh a bit. It gave me the energy that I lack for the whole of my life. Now it's easier to communicate to laugh and to do sport. I was so lethargic to do anything. But it contains wheat&gluten be carefull if you are allergic to those.
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! :)
Posted by lisofby on August 27 2012 | Verified Purchase
gotta like it, at night time.
Posted by iHerb Customer on March 15 2017 | Verified Purchase
Will order again.
Posted by iHerb Customer on September 6 2016 | Verified Purchase
I have used this for months, 2 per day. works ok for me.
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.
Posted by iHerb Customer on May 10 2014 | Verified Purchase
Good. Boost my concentration.
Posted by LauraLeonard on July 27 2009 | Verified Purchase
I like this brand
Posted by iHerb Customer on October 17 2012 | Verified Purchase
i took it some days but didnt notice anything
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.