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 June 8 2010 | Verified Purchase
This does work really well for my anxiety, however, next time I will purchase the chewables (by another brand) as it takes approx. 15-20 minutes for these to kick in. Also, when I take more than 1 a day I do tend to feel a bit drowsy which I don't like (but often my anxiety returns later in the afternoon and I feel I need to take another one). Otherwise, these are very effective. I am a fan of Doctor's Best products because of their quality and I love I-herb's prices. :)
Posted by iHerb Customer on December 2 2009 | Verified Purchase
We have used this product before and yes it does work, The change is not dramatic, you just realize on reflecting, that every thing flows along smoothly and issues can be resolved in a calm rational manner.
Posted by iHerb Customer on November 19 2010 | Verified Purchase
Always make sure to get 'Suntheanine' and not just 'theanine'... the suntheanine is a higher quality and more absorbable form of theanine. The dosage is perfect as well.
Posted by iHerb Customer on September 30 2009 | Verified Purchase
happy with product and will continue to buy, helps me cope with stressful work situations.
Posted by iHerb Customer on July 26 2009 | Verified Purchase
This is a great muscle relaxant for me, since I keep a lot of stress in my neck and shoulders. It helps keep headaches at bay. I take it in conjunction with Kava root, but I hope to discontinue Kava root soon in favor of this, since it is less harmful to the liver.
Posted by iHerb Customer on June 9 2009 | Verified Purchase
works like a charm, helps with focus, calms the mind.
Posted by iHerb Customer on April 22 2011 | Verified Purchase
I had been having a 'tight' chest on and off for three months, my blood pressure was elevated, and I was having difficulty sleeping well. About 10 days after beginning Suntheanine,1 capsule/day, I woke up feeling immensely better. I would classify this as a Wonder Supplement!
Posted by iHerb Customer on June 19 2009 | Verified Purchase
Excellent product for my child. It helped her to calm down. She was very hyper-active before using the product, now she is more mellow and she is focusing better on all her tasks.
Posted by iHerb Customer on December 6 2009 | Verified Purchase
I found that doctor's best worked faster than the previous ltheanine that i used. The effects also seem to stay in my system longer.
Posted by iHerb Customer on June 18 2013 | Verified Purchase
Never felt this calm in a long while, though anxiety is still there, but the labored anxious breathing is much better now. Benzo only makes me tired and agitated but l-theanine definitely makes me calmer without the drowsiness. For me, this is the most effective supplement so far but I'll be experimenting dosages and even brand to see what works best. So far so good...