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💼 Elevate your focus and calm — because your hustle deserves balance.
Nutricost L-Theanine 200mg offers 120 capsules of a high-potency, gluten-free, and GMO-free supplement designed to promote relaxation and mental focus. Manufactured in a certified facility, it provides a reliable, month-long supply to support stress relief and cognitive clarity for busy adults.








| ASIN | B01B3RWQNM |
| ASIN | B01B3RWQNM |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #684 in Health & Household ( See Top 100 in Health & Household ) #4 in Blended Vitamin & Mineral Supplements |
| Brand Name | Nutricost |
| Color | White |
| Container Type | Bottle |
| Customer Reviews | 4.6 4.6 out of 5 stars (10,270) |
| Date First Available | January 26, 2016 |
| Department | All Ages |
| 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 |
| Item model number | No Model |
| Manufacturer | Nutricost |
| 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 |
| Product Dimensions | 1.81 x 2.44 x 4.53 inches; 2.2 ounces |
| Special Ingredients | L-Theanine |
| Total Servings Per Container | 120 |
| UPC | 810014679372 |
| Unit Count | 120 Count |
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.
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.
D**Y
Recommend
No side effects, usually drink it at night along magnesium perfect to relax and promote great sleep will be purchasing again. Recommend
E**A
Not bad at all
Works well for calming and focus. Not a miracle, but definitely helps
O**.
A good brand
Love this stuff, i can wholeheartedly say i was nervous that this brand wasn’t going to be effective but i was definitely wrong i can definitely feel a huge difference after taking supplement in my mood, focus, and concentration. It’s definitely effective with focus, but i wasn’t really expecting it to affect my mood in any way but i have noticed a lot of positive changes in my mood! It doesn’t have a taste of course and i haven’t noticed any side effects or anything of the sort!
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**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.
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**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.
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!
S**A
Brilliant!
Great to balance out side effects from coffee/caffeine. Sleeping better. Less nervous energy.
E**A
Rinascita interiore
Sto attraversando un momento molto difficile a lavoro, oserei dire tremendo ero arrivata a non dormire piu la notte. Con queste pastiglie sono presente, lucida, niente palpitazioni, serena, forte decisa, concentrata e niente stanchezza. È una sensazione meravigliosa. Acquistatele
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.
Trustpilot
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