

🌿 Elevate your focus and calm—because your mind deserves premium care.
L-Theanine Powder offers 200mg per serving in a 100g bottle, providing 500 servings of pure, gluten-free, non-GMO relaxation support. Produced in a top-tier NSF certified, GMP compliant, FDA registered facility, it ensures quality and consistency for professionals seeking mindful calm and enhanced focus.




| ASIN | B01AAVGK70 |
| Best Sellers Rank | #17,262 in Health & Household ( See Top 100 in Health & Household ) #486 in Blended Vitamin & Mineral Supplements |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,242) |
| Date First Available | January 7, 2016 |
| Is Discontinued By Manufacturer | No |
| Manufacturer | Nutricost |
| Package Dimensions | 3.74 x 3.7 x 3.7 inches; 2.4 ounces |
S**E
Good for boosting mood.
It definitely helps boosting my mood and making me calm. I would say effects last around 4-5 hours. Effects are very instant for me. I can feel it working within 1-3 minutes. It comes in a powder form and serving spoon is very tiny that measures at 200mg (with top being flat after filling) which is more than enough for me. Great value with 500 servings compared to pills. I would recommend to not take more than 2 servings, as long term research has not been done yet on this form of amino acid.
L**R
Great for coffee jitters
I like to add this to my coffee and it’s made a notable difference in how jittery I feel after my morning latte! Mixes in very easily and there is zero difference in texture or taste at all. One scoop is enough for me to see the difference in how calm I feel.
S**I
Helps me sleep better
Most products that forcefully make you drowsy make me sleep horribly or I end up waking up feeling super depressed and lethargic with compounding effects for subsequent days taken, even natural things like melatonin; this just helps me sleep deeper and better without any of the drawbacks.
T**Y
Great Product
I was a bit skeptical of the efficacy claims for L-Theanine, but the research seemed solid enough for me to give it a try. I started by taking 400mg per day. 400mg in the AM, another 200 mg in the late afternoon, and 200 mg before bedtime. After about 5-6 days I noticed my sleep patterns were better, and my sleep felt more restful. I typically toss and turn, but the L-Theanine helped me calm down and settle in. It is a mental and emotional relaxation, not a physical one. I have also noticed that my dre4ams are not as chaotic. I feel more focused and less distracted in my day-to-day routine. . I really like this stuff. It is very effective, no side effects, and the price is great as well.
A**R
Truly tasteless and effective in calming effect.
Excellent for those on the ASD spectrum. Easily blends into your favorite drink and is truly tasteless which is very helpful for those with ARFID. (Avoidant restrictive feeding intake disorder) Has helped with managing emotional regulation and increased flexible thinking/adapting to change and stress. Definitely see a calmer state of mind. This is truly a game changer for emotional well being.
S**Y
An essential
This is a daily essential item for me now. I absolutely love the results. I feel the results within a few minutes of taking it in the morning. It does a great job relaxing my nerves and keeping my focus and energy leveled. A little goes a long way so it’s great for the value. I've read a few reviews on its not being easy to mix. I typically mix it with sparking water and it works well and it's tasteless. I’ve even purchased it for my mom and sister. For the first few months, I used it only in the morning. For the past week, I’ve been using it before bed. I find it helpful since I’m typically someone who can’t sleep at night. I’m usually up until the next morning but I’ve been sleeping pretty good every night. I take it in combination with chamomile. I sleep like a baby.
M**S
It work
I bought this product because I've been struggling with sleep problems for months and have tried everything without success. I wake up with panic attacks and stress two to four times a night, and during the day I feel exhausted and unable to sleep. I purchased this product just two days ago after an intense search for relief, as I was completely desperate. I always use Nutricost supplements, and although I've had some doubts about their quality, they usually deliver on their promises. This time, the product impressed me because, for the first time in months, I felt calm, without stress or panic. I was able to sleep at least two hours, which is a huge improvement for me—and all this in just one day of use!
A**N
Works great but tastes awful
This stuff really works, eased my adhd and anxiety, but does not mix well. I've tried mixing it in several different drinks, hot and cold. It is all clumpy in the tub it came in and it does not taste right. It is like the consistency of powdered sugar.I don't know if I just got a bad batch or not
D**Y
【知っておくべきこと】 ①睡眠導入効果はない 本製品を摂取しても眠くなることはありません。よく言われる「寝つきが良くなる」という効果は、個人的にはないと考えます。 そもそもなかなか眠れなくて困っている人は、本製品の効果を実感できることはないでしょう。 ②本製品を摂取した上で十分な睡眠時間が必要 深い睡眠で、睡眠時間の短さを補うことはできません。サプリに頼る前に、まずは生活習慣の改善から。 もちろんカフェインの摂取管理や、寝る直前のスマホ使用制限なども重要です。 ③劇的な効果ではなく「地味」な改善 最初の1回は鮮烈な目覚めの良さを実感できるかもしれませんが、その後は至って普通な目覚めかたになります。私の場合はあまりにも深く眠ってしまうせいで、かえって目覚めが悪く感じることすらあります。「これを飲めば目覚めスッキリ!疲れもバッチリ取れる!」という製品ではありません。 【実際の効果】 Apple Watchで睡眠状況の測定をしているのですが、効果は一目瞭然です(画像を参照)。自覚はありませんが、まさに泥のように眠っているようです。 日中の眠気もあまり感じなくなり、生活の質は確実に改善されています。 【総括】 「もともとある程度良好な睡眠習慣を続けている人が、特権的にバフを得ることができるサプリ」と言えるのではないでしょうか。万人におすすめできる製品とは言えませんが、私は良い製品だと確信しています。 睡眠に関して深刻な問題を抱えている方には、残念ながら効果は(おそらく)ありません。他の方も言う通り、医師に相談しましょう。
D**C
Excelente calidad y trae dosificador.
さ**た
料理や飲み物、何に混ぜても元の味に変化なく摂ることができます。水やお湯だけに混ぜるとテアニンの味は感じます。コスパ良し!感謝🙏
E**N
I have been using it for a few days. It is a good product but the price seems a bit high. But since it is an imported product, the price is likely to be higher than other brands. Still, I am very satisfied with the quality of L theanine provided.
A**O
Esta bueno y sale como 10 veces más barato que comprar pastillas
Trustpilot
1 month ago
1 week ago