Calms your mind and makes you focus better. Reduces anxiety and helps you step away from overwhelming situations to resolve them better. Also helps when taking with Doctor's Best L-Tryptophan for sleeping. As this product works on a brain level (got this from the great nutritionists at Doctor's Best), it helps calm the brain and the L-Tryptophan helps on the hormonal level. Best sleep i've ever gotten and all night too. I have put my entire office on the Doctor's Best Suntheanine L-Theanine product. As a manager i have found people are more productive and much better to get along with. Also my husband kids and mother love this product. Doctor's Best does have the best product by far. By the way, I always get experts to talk to when I need any questions answered. My kind of company. Angie.
Posted by iHerb Customer on September 17 2013 | Verified Purchase
Couldn't feel any positive or negative effects.
Posted by Scottishdave on December 12 2010 | Verified Purchase
Had high hopes that this supplement could take the edge off at night, but after 2 weeks varying the dose from one cap to six i felt none of the marketed effects.
Posted by iHerb Customer on August 16 2013 | Verified Purchase
Have not really noticed any difference in anxiety or stress during the day. I might start supplementing at night.
Posted by iHerb Customer on September 3 2015 | Verified Purchase
This product works...almost immediately but there is a catch! I felt woozy and tired for the whole day. It actually made me sleepy and "heavy-headed". I couldn't concentrate at work but took it for 2 more days in order to find out the culprit. Needless to say that was a bad decision! I was fatigue the entire week and it actually took me a while to recover. I hated the feeling after taking suntheanine, it felt like someone was controlling my brain. Advice: Take this only when you are very very very very anxious.
Posted by iHerb Customer on January 14 2018 | Verified Purchase
I bought this product as I heard it was meant to help with anxiety and sleep, however it made matters worse. Found it difficult to sleep and became very jittery. It might work for people who do not have such severe anxiety.
Posted by iHerb Customer on August 5 2017 | Verified Purchase
I Don t recodnise any difrence i et these 600mg-1200mg for day and i have adhd/add... Try difrent product next...
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