Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
USERS' SCORE
Moderately Good
Based on 59 Reviews
7.9
Supplement Facts
Serving Size: 1 Veggie Capsule
Serving Per Container: 90
Amount Per Serving
%DV
L-Theanine (Suntheanine®)
150 mg
†
Top Medical Research Studies
7
L-theanine improves sleep quality safely
We examined whether L-theanine, a natural amino acid found in tea, could improve sleep quality, especially for individuals affected by sleep apnea. Through various sleep assessments and questionnaires, we found that taking 200 mg of L-theanine before bedtime offers benefits not by putting one to sleep, but by easing anxiety.
This means users can experience better sleep without the sedative side effects commonly associated with traditional sleep aids. Importantly, L-theanine should not cause daytime drowsiness, making it a versatile option any time of the day.
This means users can experience better sleep without the sedative side effects commonly associated with traditional sleep aids. Importantly, L-theanine should not cause daytime drowsiness, making it a versatile option any time of the day.
Read More
Most Useful Reviews
8
Calming effects noted
21 people found this helpful
I got this supplement for myself as a mother with a lot of worries and psychological stress. I was drawn to the fact that theanine calms without sedation. After taking it for a few days, I noticed superb results; I became much calmer and my sleep improved significantly. The brand also impresses me with its quality.
Read More
9
Stopped sleeping pills
9 people found this helpful
This good product helped my husband to stop taking sleeping pills. It also resolved my sleep problems last autumn. Taking three capsules on an empty stomach led to a peaceful night's sleep for both of us.
Read More
9
Assists sleep quality
8 people found this helpful
This product is ideal for those who wake frequently at night. By taking 150mg before sleep, I've consistently slept well until morning. The quantity is good, and it has become a significant aid in my nightly routine.
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
- All Researches
7
L-theanine improves sleep quality safely
We examined whether L-theanine, a natural amino acid found in tea, could improve sleep quality, especially for individuals affected by sleep apnea. Through various sleep assessments and questionnaires, we found that taking 200 mg of L-theanine before bedtime offers benefits not by putting one to sleep, but by easing anxiety.
This means users can experience better sleep without the sedative side effects commonly associated with traditional sleep aids. Importantly, L-theanine should not cause daytime drowsiness, making it a versatile option any time of the day.
This means users can experience better sleep without the sedative side effects commonly associated with traditional sleep aids. Importantly, L-theanine should not cause daytime drowsiness, making it a versatile option any time of the day.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 59 Reviews
7.9
- All Reviews
- Positive Reviews
- Negative Reviews
8
Calming effects noted
21 people found this helpful
I got this supplement for myself as a mother with a lot of worries and psychological stress. I was drawn to the fact that theanine calms without sedation. After taking it for a few days, I noticed superb results; I became much calmer and my sleep improved significantly. The brand also impresses me with its quality.
Read More
9
Stopped sleeping pills
9 people found this helpful
This good product helped my husband to stop taking sleeping pills. It also resolved my sleep problems last autumn. Taking three capsules on an empty stomach led to a peaceful night's sleep for both of us.
Read More
9
Assists sleep quality
8 people found this helpful
This product is ideal for those who wake frequently at night. By taking 150mg before sleep, I've consistently slept well until morning. The quantity is good, and it has become a significant aid in my nightly routine.
Read More
8
Good night's sleep
7 people found this helpful
You can calm your mind and enjoy a good night's sleep. I take it in the evening to stabilise my mood and calm my mind. Having tried various brands, Doctor's Best theanine works best for me. You really can sleep well when you feel at peace, and upon waking, you know you've had a restful night.
Read More
9
Daytime solution
6 people found this helpful
If you have trouble getting to sleep, try this! It has been a godsend for my husband, who works nights, helping him to sleep during the day. No side effects at all!
Read More
Frequently Asked Questions
8
Calming effects noted
21 people found this helpful
I got this supplement for myself as a mother with a lot of worries and psychological stress. I was drawn to the fact that theanine calms without sedation. After taking it for a few days, I noticed superb results; I became much calmer and my sleep improved significantly. The brand also impresses me with its quality.
9
Improved sleep routine
2 people found this helpful
I struggled with my sleep before discovering a combination of magnesium and L-theanine. After using them together, my sleep quality improved considerably, allowing me to fall asleep easily and enjoy restful nights. The side effects were minimal, and I wish I had started using this combination sooner.
9
Deep restful sleep
2 people found this helpful
I slept for the first time very deeply and did not wake up! I'm very happy.
9
Assists sleep quality
8 people found this helpful
This product is ideal for those who wake frequently at night. By taking 150mg before sleep, I've consistently slept well until morning. The quantity is good, and it has become a significant aid in my nightly routine.
9
Game-changing cocktail
1 people found this helpful
L-Theanine has been a valuable component of my sleep regimen for a few years, transforming my sleep experience. I not only sleep better but I also have more vivid dreams.
9
Insomnia solution
4 people found this helpful
At 27, I experienced insomnia for the first time. After thorough research, I discovered L-theanine, which has been a natural solution to my sleep problems. I take it alongside GABA and L-tryptophan in the evening, allowing me to sleep well before my busy days.
9
Improves sleep quality
1 people found this helpful
This product is excellent for sleep; however, if I take an entire capsule, I wake up at 4 am and struggle to get back to sleep. By taking less than half in water, I fall asleep quickly and enjoy uninterrupted sleep throughout the night. I also use melatonin spray, which is the ideal combination for me.
7
L-theanine improves sleep quality safely
We examined whether L-theanine, a natural amino acid found in tea, could improve sleep quality, especially for individuals affected by sleep apnea. Through various sleep assessments and questionnaires, we found that taking 200 mg of L-theanine before bedtime offers benefits not by putting one to sleep, but by easing anxiety.
This means users can experience better sleep without the sedative side effects commonly associated with traditional sleep aids. Importantly, L-theanine should not cause daytime drowsiness, making it a versatile option any time of the day.
This means users can experience better sleep without the sedative side effects commonly associated with traditional sleep aids. Importantly, L-theanine should not cause daytime drowsiness, making it a versatile option any time of the day.
References
- Rao TP, Ozeki M, Juneja LR. In Search of a Safe Natural Sleep Aid. J Am Coll Nutr. 2015;34:436. doi:10.1080/07315724.2014.926153
