

🧘♂️ Unlock calm focus and conquer your day with Thorne Theanine!
Thorne Theanine delivers 200mg of pure L-Theanine per capsule to promote relaxation, enhance alpha brain waves, and support a healthy stress response. Third-party tested and trusted by elite athletes and healthcare pros, this supplement helps you stay calm, focused, and balanced without drowsiness. Perfect for busy professionals seeking natural mental clarity and stress relief.


















| ASIN | B0797BLW59 |
| Best Sellers Rank | #9,256 in Health & Household ( See Top 100 in Health & Household ) #145 in Amino Acid Nutritional Supplements |
| Customer Reviews | 4.7 4.7 out of 5 stars (691) |
| Date First Available | April 11, 2005 |
| Is Discontinued By Manufacturer | No |
| Item model number | SA508 |
| Manufacturer | Thorne Research |
| Product Dimensions | 2.09 x 2.09 x 3.72 inches; 0.01 ounces |
C**S
L Theonine
I highly recommend this to relax and calm after a hard days work! Perfect and non habit forming.
J**A
Calm, Focused, and Finally at Ease
I’ve been taking Thorne L-Theanine for a while now, and it has made a noticeable difference in my anxiety. Within about 30–45 minutes, I feel calmer and more focused without feeling drowsy. It’s like my brain finally has a “pause button” during stressful moments. I love that L-Theanine helps promote relaxation by supporting alpha-wave production in the brain, and it also boosts GABA, which helps my mind slow down when I’m spiraling. Since I started taking it, I’ve been able to focus better, handle stress more calmly, and my overall mood feels steadier. I also appreciate that Thorne’s supplements are third-party tested—I feel good knowing what’s on the label is actually what I’m taking. This has become a staple in my routine, and I’d recommend it to anyone looking for a natural way to support a healthy stress response.
L**.
Excellent Adult ADHD Supplement!
Excellent supplement for Adult ADHD & sleep!
K**C
Game Changer for My Sleep Quality!
This has been a game changer for my sleep routine. I take it about an hour before I want to fall asleep (along with some other supplements) and it has done absolute wonders for my sleep quality! For reference I am middle age and dealing with middle age things, but this little supplement has been so effective in helping me sleep. Which, of course, increases quality of life!
D**.
Surprisingly powerful and incredibly effective
When I first started taking this, I had never tried L-theanine before. I took the full 200 mg dose, and it hit harder than I expected. Not in a bad way, but in a way that made me pause. My brain immediately shifted into a calmer, slower state. It felt like someone flipped a switch from “on” to “rest.” I was honestly shocked by how noticeable the effect was. For about a week, I actually opened the capsules and took only half (around 100 mg), which felt more manageable at the time. Now I take the full 200 mg dose, usually twice a day. It has become a staple in my routine. This completely removes the edge I used to get from caffeine. No more racing heart rate, jitters, shaky hands, or sweaty palms. I can drink coffee and feel alert without the usual overstimulation. My stress feels much more level throughout the day. I’ve been impressed with Thorne in general, but this particular supplement has exceeded my expectations. I did not expect something so simple to make such a clear difference.
I**A
Sweet dreams
This supplement helps to have deeper and lasting sleep. Would recommend.
T**S
Thianine
Seems to help with my focus.
R**O
Quality supplements & fast results
This product exceeded my expectations as it was received quickly so I could start taking to help with my energy & it helped my anxiety, jitters, easy to swallow small pill. Great value for the cost & great quality
D**Y
Useless, doesn’t work for me. Thorne Stress B Complex works better.
A**D
رائع
Trustpilot
1 day ago
2 months ago