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💼 Elevate your focus, ditch the stress — the smart millennial’s secret weapon.
Nutricost L-Theanine 200mg offers 120 gluten-free, GMO-free capsules of premium quality L-Theanine, manufactured in NSF, GMP, and FDA-certified facilities. Designed for adults seeking natural stress relief and enhanced focus, this double-strength supplement provides a convenient 4-month supply to support mental clarity and calm throughout a busy professional lifestyle.








| ASIN | B01B3RWQNM |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #588 in Health & Household ( See Top 100 in Health & Household ) #3 in Blended Vitamin & Mineral Supplements |
| Brand | Nutricost |
| Brand Name | Nutricost |
| Color | White |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 13,593 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00810014679372 |
| Item Dimensions | 2.36 x 2.36 x 4.4 inches |
| Item Form | Capsule |
| Item Highlight | GMO-Free |
| 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 |
| Package Size Name | 120 Count |
| 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**A
A Godsend for me
My husband and I have been taking these for a year already. I have anxiety, ptsd, cognitive decline and sleep issues. It helps. So I take one in the morning and one with magnesium before bed, and my sleeping has improved a great deal. Better than sleeping pills for me if i pair the two (i am not a doctor so ask yours. Just works for me). The energy boost is a huge help. I have to take them every day, if I miss one day eh that's OK but its good to stay consistent. No side effects which I love. Easy to take because its not too big and the capsules are easy to swallow. Having cptsd, anxiety and cognitive issues have always been an issue in my adult years especially after a head injury, but with taking these my thoughts are clearer and I show signs of being more focused. Again I recommend but please run it by your doctor first.
C**Z
L- theanine 200
I’ve been using this L-Theanine supplement and I really like it. It helps me feel calmer and more relaxed without making me feel groggy during the day. I’ve also noticed that I’m able to unwind more easily at night and sleep better. The capsules are easy to take, and I’m very happy with the results so far. Definitely a great addition to my daily routine!
T**R
Try it
Been taking now for a few weeks and really think it helps. I take it an hour or more before bedtime. It doesn’t make you sleepy but seems to shut down all those things that run thru the brain when you are trying to fall asleep. Will definitely reorder and keep taking. I would say it’s definitely worth a try.
W**H
Works well
This is a very good product, works well and worth the price. It’s a calming effect with drug use. I recommend it.
S**L
a Good and affordable L-Theanine supplement
I’ve been using this L-Theanine 200mg together with my coffee. It seems to help make the energetic feeling from coffee last longer while making the peak feeling less intense. For me, it also helps with focus while giving me a calmer feeling. One thing to note is that taking too much can make me feel a little drowsy or lightheaded, so I personally prefer to stay at a moderate amount 1 or 2 Capsules per day
J**8
This actually has an effect on me
I have to admit that the majority of supplements that I've taken don't seem to do anything, at least not for me. This is one of the rare exceptions. I take this at night time most nights before going to sleep, and also sometimes if I have to play the piano in front of a group, it seems to take the edge off of the nervousness.
J**K
An Easy Addition to My Daily Routine
I’ve been really happy with this L-Theanine. The 200 mg capsules are easy to take, and I appreciate that one bottle has 120 servings, so it lasts a long time. I like products that are simple to work into my routine without a lot of fuss, and this checks that box. Nutricost has also been a good value compared with several other supplement brands I’ve looked at. Definitely one I would purchase again.
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**ー
Improved my sleep quality
I bought this to help me relax before bed. Ive always had a hard time sleeping, but since I started taking this, my sleep has improved so much. My boyfriend also started taking it and it has really improved our lifestyle with the full sleep we are getting. We wake up more energized in the morning.
Y**Y
Buen producto
Buen producto
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.
A**L
It works 👍🏻
I’ve used this for a week and already notice less anxiety. My heart doesn’t race like before and I don’t get that stomach knot feeling anymore. It’s made a real difference for me. For energy I pair it with creatine and sometimes caffeine. Over a short period the difference isn’t huge but I do notice feeling less sleepy midday which is what I needed 😍👌🏻
Trustpilot
2 days ago
2 weeks ago