

🧘♂️ Elevate your calm, sharpen your focus — the brain boost you didn’t know you needed.
THORNE Theanine delivers 200mg of L-Theanine per capsule, scientifically shown to increase alpha brain wave activity, supporting relaxation, focus, and a healthy stress response. Trusted by elite athletes and healthcare pros, this third-party tested supplement ensures purity and potency in every dose, helping busy professionals achieve calm clarity without sedation or habit formation.


















| ASIN | B0797BLW59 |
| Best Sellers Rank | #5,648 in Health & Household ( See Top 100 in Health & Household ) #95 in Amino Acid Nutritional Supplements |
| Customer Reviews | 4.7 4.7 out of 5 stars (700) |
| 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 |
I**A
Sweet dreams
This supplement helps to have deeper and lasting sleep. Would recommend.
C**S
L Theonine
I highly recommend this to relax and calm after a hard days work! Perfect and non habit forming.
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!
A**R
Anxiety Relief
Yes. Great product. I'm thankful for it.
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.
T**S
Thianine
Seems to help with my focus.
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.
D**Y
Useless, doesn’t work for me. Thorne Stress B Complex works better.
A**D
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