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4.6
Based on 493 Ratings
5 Stars
376
4 Stars
68
3 Stars
33
2 Stars
8
1 Stars
8

4.6
Based on 493 Ratings
5 Stars
376
4 Stars
68
3 Stars
33
2 Stars
8
1 Stars
8

Most helpful positive review

Posted on Nov 18, 2021
35
0
1
147

An EXCELLENT supplement for sleep. If taking it for that reason, have at night about 2 hours before sleeping. Also a good idea to combine it with magnesium l-threonate and apigenin, if using for that reason. Also a great supplement for alertness and focus. If taking it for that reason, have in the morning (I enjoy taking it with my coffee, and gives me a nice even amount of focus and flow during the work day). But don't take twice a day - just choose one or the other, or your body will naturally adjust to the amount and you'll lose the effects. If you find this review useful, please give me a little thumbs up, I would really appreciate it :-)

Global reviews (493)

Product reviews solely reflect the views and opinions expressed by the contributors and not those of iHerb. iHerb does not verify or endorse any claims made in these reviews. Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Show more
Posted on Apr 23, 2023
36
3
0
11
Verified Purchase
Rewarded Review

the quality ingredients size package taste is a benefit theanine which is a protein form. a composition add to my diet energy instead of training and muscle goal. I use to sleep. half hr up to high steady. many people said help with focus, mood and combat anxiety, but I didn't have this effect, maybe got focus I feel. I use to sleep when stop Dr. Berg Sleep Aid a day, but it's not the core supplement that I like in my sleep planning. Ultimate sleep song: yo utu. be/iqfYr7S60D0 fac ebo ok.c om/100019904659691/posts/1224356718237805/?mibextid=rS40aB7S9Ucbxw6v

Posted on Sep 20, 2022
24
0
0
3
Verified Purchase
Rewarded Review

was recommended this product to help with anxiety. The ingredients are the right composition and a must to include in my personal diet. Certainly feel the effects soon after consuming. There is no taste to this product and the size of the capsule is easy to take. Good quality product especially with the suntheanine component.

Posted on Apr 20, 2023
100
1
0
30
Verified Purchase
Rewarded Review

I recently tried a new dietary supplement and it has exceeded my expectations. This supplement is specifically designed to support overall health and wellness by using high-quality ingredients. What I like most about this product is how easy it is to take and that it does not cause any digestive discomfort or leave a bad aftertaste, which is something I've experienced with other supplements. After taking it for a few weeks, I noticed an improvement in my energy levels and overall mood, which is exactly what I was hoping for. Additionally, this supplement is non-GMO and gluten-free, making it a great option for anyone with dietary restrictions. Overall, I highly recommend this supplement to anyone looking for a quality product to support their health and wellness goals.

Posted on Apr 15, 2023
881
0
73
52
Verified Purchase
Rewarded Review

Sun Theanine is a natural amino acid that has been praised for its ability to promote relaxation and calmness. As someone who struggles with anxiety, I have found that Sun Theanine has become an essential part of my daily routine. It helps me manage my stress levels, improve my mood and even enhance my focus. Unlike other supplements, Sun Theanine doesn't make me feel drowsy or foggy-headed. Instead, it provides a gentle sense of relaxation that allows me to stay productive and focused throughout the day. Its effects are felt almost immediately after ingestion, making it an ideal supplement for those who need quick relief from anxious thoughts or tension. Overall, I highly recommend Sun Theanine as a natural alternative to pharmaceuticals for anyone looking to reduce stress and promote relaxation in their daily lives. Not a medical advice!

Posted on Mar 27, 2023
15
0
1
4
Verified Purchase
Rewarded Review

From the first time I used this, I felt calmer and more in control of the daily stresses that come with being a primary caretaker for an elderly parent. I love the quality and pure ingredients of Natural Factors supplements and this one has become a staple I won't be without. Bonus, I give this to my mother and she is also much calmer and has a more positive attitude!

Posted on Mar 19, 2023
10
0
0
0
Verified Purchase
Rewarded Review

Best l-theanine supplement on the market! Helps me so much to reduce anxiety and makes me feel calm. Suntheanine is not an extract of green tea but rather is produced via a patented process that mimics the natural process in green tea leaves, resulting in a 100% pure L-isomer-theanine. It's more potent and works more quickly in my opinion than regular l-theanine

Posted on Feb 27, 2023
71
0
0
15
Verified Purchase
Rewarded Review

Quality product with good ingredients! I use after training for sleep benefits in combination with magnesium. This is a good composition of proven ingredients that are definitely worth adding to your routine and diet. Small capsule size makes them easy to swallow too. Packaged in usable container. Hope you enjoy this product.

Posted on Mar 9, 2023
1
0
0
0
Verified Purchase
Rewarded Review

I have used Suntheanine on and off for a few years now. I thought I was getting the chewable kind, so my fault for not paying attention to what I was buying. I've only used this pill form a couple of times, but seems to do the same thing. I find it mostly works for me and I tend to sleep better, but it is not a miracle. Sometimes, as a side effect, it gives me very vivid dreams.

Posted on Apr 20, 2023
19
0
0
0
Verified Purchase
Rewarded Review

Love it so much It helped me with my anxiety on exams days However there was no much of an effect after my anxiety got worse

Posted on Feb 3, 2023
3,132
0
0
362
Verified Purchase
Rewarded Review

this is apparently the best form of thehanin, the most bioavailable. This type of teanina works great for me, but it works as well as not « sunny ». I bought it for my partner, hoping that he would be more susceptible to this type. Conclusion: Not obvious.