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💼 Elevate your calm game — focus sharper, stress less, and own your day!
Nutricost L-Theanine 200mg offers a high-potency, clean, and gluten-free supplement designed to promote relaxation, reduce stress, and enhance focus. With 120 capsules per bottle, it provides a long-lasting, budget-friendly solution manufactured under strict quality standards, making it a top choice for professionals seeking calm clarity without drowsiness.








| ASIN | B01B3RWQNM |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #692 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 10,262 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 |
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.
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.
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
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
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.
A**M
Pairs great with caffeine
These are perfect to take away the caffeine jitters from coffee or supplements without taking away the energy
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.
C**S
Perfect
I super excited about finding this supplements with my favorite company. You get exactly what you order with them. I take this with melatonin and magnesium every nite with 2 Tylenol pm. I have chronic insomnia but with taking theses every night I have fallen asleep and sleep through the night. This Nutricost co has been referred to me and I can't say enough good things. I get my fresh vitamins and supplements every month. No tastes or horrible odor and not overly huge. Definitely my go to for the value!
K**L
Mein absoluter Lebensretter für die Prüfungsphase: Der perfekte Fokus ohne "Koffein-Zittern"!
Ausgangssituation & Der richtige Kontext Gerade jetzt in der heißen Phase meiner letzten Bachelor-Prüfungen im Maschinenbau ist ein glasklarer Fokus am Schreibtisch und in der Klausur absolut essenziell. Bisher habe ich mich oft mit Kaffee oder Energydrinks über Wasser gehalten, was aber einen großen Nachteil hat: Man wird schnell fahrig, nervös und "hibbelig" – ein Zustand, den man in einer wichtigen Prüfung absolut nicht gebrauchen kann. Auf der Suche nach einer Lösung bin ich auf L-Theanin gestoßen und habe mir dieses Präparat von Nutricost bestellt. Der Praxistest: Die perfekte Kombination Isoliert eingenommen wirkt L-Theanin leicht entspannend. Seine wahre Magie entfaltet dieses Supplement für mich aber erst in Kombination mit Koffein. Ich nehme mittlerweile vor jeder Lernsession oder Prüfung genau eine Kapsel (200mg L-Theanin) zusammen mit ca. 100mg Koffein ein. Das Ergebnis ist überragend: Das L-Theanin eliminiert sämtliche negativen Nebenwirkungen des Koffeins. Keine innere Unruhe, kein Herzrasen, kein Zittern. Übrig bleibt eine unglaubliche, stundenlange Konzentration, gepaart mit einer tiefen, mentalen Entspanntheit. Ich gehe mittlerweile in absolut keine Prüfung mehr ohne diese Kombination! Die richtige Dosierung Die Dosierung von Nutricost ist mit 200mg pro Kapsel für mich der absolute "Sweet Spot". Ich habe testweise auch mal 400mg (also zwei Kapseln) probiert, was für mich persönlich aber zu viel des Guten war und mich eher zu stark entspannt hat. Die Kapseln lassen sich leicht schlucken, sind gut verträglich und der Vorrat von 120 Stück reicht ewig. Pro & Contra Pro: Eliminiert die Nervosität ("Hibbeligkeit") von Koffein komplett, schafft messerscharfen Fokus bei gleichzeitiger Entspannung, perfekte Dosierung (200mg), sehr gutes Preis-Leistungs-Verhältnis. Contra: Bisher absolut keine negativen Effekte festgestellt. Fazit Für Studenten, Büroarbeiter oder jeden, der stundenlang hochkonzentriert arbeiten muss, ist dieses L-Theanin in Kombination mit einer Tasse Kaffee oder einer Koffeintablette ein absoluter Gamechanger. Es liefert die saubere Energie, die man braucht, ohne den unerwünschten "Koffein-Crash" danach. Absolute Kaufempfehlung – mein wichtigster Begleiter in der Klausurenphase!
J**O
Muy buena ayuda para la ansiedad diaria sin causar somnolencia
PUNTOS FUERTES: Efecto sutil pero continuo: Ayuda a rebajar la sensación de agobio y la mente acelerada. No da sueño: Permite estar tranquilo pero 100% despejado y funcional para trabajar o estudiar. Buena relación calidad/precio: Con 120 cápsulas tienes para varios meses. A TENER EN CUENTA: Es un suplemento natural para apoyo diario; sus efectos son progresivos y no actúan como un fármaco fuerte. Opinión detallada: Compré la L-Teanina de Nutricost para intentar gestionar mejor los momentos de ansiedad y estrés, y tras estar usándola un tiempo he notado una mejora real. Sensación y efectos: En mi caso, me ayuda a rebajar el "ruido mental" y la tensión de la ansiedad sin dejarme tirado ni adormilado. Siento una calma bastante limpia que me permite seguir con mi rutina diaria con más tranquilidad. Formato y toma: Las cápsulas son de tamaño estándar, fáciles de tragar y no dejan ningún sabor extraño ni generan molestias en el estómago. Duración del bote: La dosis de 200 mg me parece adecuada para el día a día, y al traer 120 cápsulas rinde muchísimo.
ま**ろ
効くかもしれない。
別の安眠商品でL-テアニンが含まれているものが良く寝られたので、こちらを購入。 20時くらいに一粒飲んでおいたら、23~24時くらいにスヤァと入眠できます。 あくまでサプリメントなのでプラシーボかもしれないけれど、私にはあっていました。
W**E
Early review-Works!
This is my 2nd day of use. I have used L-Theanine previously (on and off) from a different brand. This is my first experience with Nutricost. All the classic effects of L-theanine are felt within 1 hour. Beautiful, bliss, calm, empathetic, focus. Great for spending time with loved one. Great for building relations. L-theanine is a beautiful molecule. But from my previous experience, the effects stop after a few days due to tolerance buildup. Have to wait and see. I will update after some days.
F**Y
Rêverie compulsive ! Incroyable pour les cerveaux trop actifs !
✅ "Souffrant" depuis très longtemps de rêverie compulsive (maladaptive daydreaming même si le terme est pas forcément reconnu et plus "internet") je cherche depuis un moment quelque chose qui m’aiderais sans changer mon état d’esprit ou me changer moi, juste m’aider. - je prend une pullule tous les matins et les résultats sont impressionnants. La première fois que j’en ai pris j’ai eu l’impression de vivre la journée pour la première fois depuis très longtemps. (Je n’abuse pas j’étais à ce point là dans mon esprit et mon imagination). - Ce complément n’a pas changé ma créativité, il m’a simplement permis de la canaliser et de pouvoir travailler avec et non pas la laisser prendre le dessus. ✅ Marche même après des mois, je l’ai vérifié en arrêtant d’en prendre une semaine. Au début aucun changement, puis quelques jours après j’ai remarqué que j’étais à nouveau dispersé dans mes pensées et incapable de me concentrer pour travailler. En reprenant le compliment j’ai à nouveau ressenti une concentration possible. - bien sûr si vous êtes comme moi dans votre monde 24h/24 cela ne va pas vous arrêter, mais c’est miraculeux pour moi de juste pouvoir en sortir une partie de la journée quand les choses autour compte. - Pas annuler mes pensées, mais les canaliser. - Quelque jours d’essai devrait suffire à voir si cela fonctionne pour vous, les effets pour moi sont efficaces dès la première prise et encore plus visible quand je n’en prend plus. ✅ Les pilules ne sont pas énormes; assez facile à prendre chaque matin. J’en prend deux les jours où je sais que je dois être présent dans le monde et une seule quotidienne pour aider à apaiser.
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