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💼 Elevate your calm game — focus sharper, stress less, and own your day!
Nutricost L-Theanine 200mg offers a premium, double-strength dose of pure L-Theanine in 120 gluten-free capsules. Designed for busy professionals seeking enhanced focus, stress relief, and better sleep, this non-GMO supplement is manufactured in a top-tier NSF certified, GMP compliant, FDA registered facility, ensuring consistent quality and safety. With 120 servings per bottle, it’s a cost-effective, clean solution to maintain calm and clarity throughout your demanding day.








| ASIN | B01B3RWQNM |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #800 in Health & Household ( See Top 100 in Health & Household ) #4 in Blended Vitamin & Mineral Supplements |
| Brand | Nutricost |
| Brand Name | Nutricost |
| Color | White |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 9,999 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00810014679372 |
| Item Dimensions | 1.81 x 2.44 x 4.53 inches |
| Item Form | Capsule |
| Item Weight | 2.2 ounces |
| Manufacturer | Nutricost |
| Manufacturer Part Number | No Model |
| Material Features | GMO Free, Gluten Free |
| Material Type Free | Non-GMO, Gluten Free |
| Model Name | NTCL-TEANINA |
| Model Number | No Model |
| Number of Items | 1 |
| Primary Supplement Type | L-Theanine |
| Product Benefits | Stress Relief |
| Special Ingredients | L-Theanine |
| Total Servings Per Container | 120 |
| UPC | 810014679372 |
| Unit Count | 120 Count |
A**R
Solid L-Theanine for Calm & Clarity
This supplement delivers what it promises: a potent dose of L-Theanine with consistent results. Nutricost has put together a clean, no-nonsense capsule that’s a great value for stress relief, improved sleep, and focus. 🔹 High Potency, Low Fuss Each capsule packs 200mg of L-Theanine, which is double the dose many competitors offer. With 120 servings per bottle, it's a budget-friendly, long-lasting option. The bottle is clearly labeled, and the capsules are vegetarian and gluten-free — big plus. 🔹 Reliable for Relaxation and Focus User reviews on page 5 and 6 highlight how this product helps take the edge off stress, smooth out caffeine jitters, and even promote better sleep when paired with magnesium. There’s a common theme of users feeling calmer without drowsiness. ✅ Pros: High potency (200mg per capsule) Non-GMO, gluten-free, and vegetarian Manufactured in a GMP-compliant facility Improves calmness and reduces anxiety Works well with caffeine or magnesium for added effect ❌ Cons: Some users may prefer a lower dose option Effects may vary individually — some report minor stomach discomfort Overall: A clean, effective L-Theanine supplement at a competitive price. It shines in helping you stay focused and calm under pressure without the grogginess. A great addition to your daily routine for managing stress and sleep.
T**C
Relief
I don’t write a lot of reviews and I was highly skeptical but after doing some heavy research I decided to give it a try. You can literally feel this stuff working and it is such a relief. I take one first thing when I get up in the morning and one late in the afternoon. If you’re unsure about 200mg you can always purchase a different brand of a 100mg tablets to try it out. Impressive stuff.
C**.
Great for Relaxation and Evening Wind-Down
I really like this L-Theanine supplement and have been very happy with it. I mainly take it in the evening, and I feel like it helps me relax and wind down before bed. It seems to take the edge off and helps me settle into a calmer, more relaxed state. The capsules are easy to swallow and haven’t caused any stomach discomfort for me. I also appreciate that it’s non-GMO and gluten free, which makes me feel more confident about the quality of the product. The price is very reasonable, especially for the strength and quantity you get. The 200mg dose works well for me and the bottle lasts a good amount of time. Overall, this has been a great addition to my routine, and I plan to keep using it.
K**H
Good stuff
Definitely noticed the difference in mood. Helped with sleep quality. The pills aren’t to big so there easy to swallow. Safe to mix with a lot of things but always make sure it’s safe to do so. And it helped me focus more on the task I was working on
R**N
Your brain will thank you
Oh gosh, a naturally occurring supplement that helps with calming the brain! It’s been great for me so far. Calms your mood in a very subtle way, cools my brain and doesn’t feel like its on fire due to overactivity in my brain. Its really noticeable especially when you dont take it. Life saver on stressful days and regular daily routine
J**L
Beneficial Supplement
I researched supplements for easing my restless leg syndrome and found out L-Theanine is recommended. I started taking it at night and I have not had any symptoms of RLS AND it aided in gently falling asleep! Win Win💕
J**N
Love using this daily
I’ve been consistent using l-theanine for a few months now and so has my wife. We both notice a difference when taking it versus when not. I wanted to begin taking it for a few reasons - I have a horrendous sleep schedule while working full time, having 3 kids and starting my own business/content schedule. I have a lot on my plate and found myself relying heavily on excessive amounts of caffeine. Now I won’t lie, I still love my cold brews. But instead of relying strictly on caffeine, I’ve added this supplement to my morning with my breakfast and first cup of cold brew and the sustained focus and drive is definitely noticeable. My wife has a very stimulated nervous system and this is one of the supplements we added to her stack to help her with that and she’s very much so noticed its benefits. I would highly recommend and it’s very cost effective for what you get.
H**N
I wish I had known about L-theanine sooner! Great supplement!
I am taking this with coffee on stressful days with a lot of tasks to accomplish to help me relax while staying focused. So far, it's been very effective, with no side effects I can notice. Nutricost is now one of the favorite brands for supplements. Will update if I experience any side effects. I would recommend it to anyone with a job that is both stressful and cognitively demanding.
P**R
Wirklich gutes Produkt, hilft beim Schlaf und gegen Stress
Hat mein Stresslevel bermerkbar gesenkt und auch der Schlaf ist deutlich besser
C**D
Un excellent complément pour favoriser le calme et la concentration
Très satisfaite de cette L-théanine. C’est un complément que j’apprécie particulièrement pour son effet apaisant sans sensation de somnolence. La L-théanine, naturellement présente dans le thé vert, est souvent utilisée pour soutenir : ✔️ le calme mental ✔️ la gestion du stress ✔️ la concentration ✔️ la détente du système nerveux Personnellement, je la trouve intéressante dans les périodes de charge mentale importante ou lorsque le mental a du mal à ralentir. L’effet est plutôt subtil mais agréable. J’apprécie aussi le fait qu’elle aide à retrouver un état plus posé sans effet “assommant”. ✔️ Facile à prendre ✔️ Effet apaisant sans fatigue ✔️ Bonne alliée concentration / relaxation ✔️ Composition sérieuse Un très bon complément à intégrer dans une hygiène de vie globale orientée équilibre nerveux et récupération. ✨🌿
い**ぴ
意外なよさ
寝つきが良くなることを期待して飲みました。睡眠に関しては特に状況が変わるわけではありません。ただ、妊娠してからすごく滑舌が悪くなってどうしようもできなくなって困っていましたが、これを飲んでから2、3時間経つと5時間ぐらいだけ普通に喋れるようになります。ありがたいです、
J**Y
Works Reliably
Really helpful. Genuinely calm me down . I try to only take when I know I've got a busy day ahead, so limiting to 3 days a week or so will prevent building tolerance.
P**Z
Me encantan
Me encanta, he comprado ya varios botes, yo sufro de ansiedad y me suelo poner bastante nerviosa y esta cápsula hace que se me vaya un poco el nerviosismo ese malo que se me pone en el cuerpo, no entra sueño, ni cansancio ni nada, sólo me siento cómo un poco menos nerviosa
Trustpilot
2 weeks ago
5 days ago