

🌿 Elevate your calm game — because your focus deserves the best!
Nutricost L-Theanine Powder offers 200mg of pure, gluten-free, and Non-GMO L-Theanine per serving, with 500 servings per container. Manufactured under strict NSF, GMP, and FDA standards, this unflavored powder blends seamlessly into beverages, providing fast-acting mood and focus support ideal for busy professionals seeking natural calm without compromise.




| ASIN | B01AAVGK70 |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #16,065 in Health & Household ( See Top 100 in Health & Household ) #430 in Blended Vitamin & Mineral Supplements |
| Brand | Nutricost |
| Brand Name | Nutricost |
| Color | Red |
| Container Type | Tub |
| Customer Reviews | 4.5 out of 5 stars 1,257 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00810139572190 |
| Item Form | Powder |
| Item Weight | 2.4 Ounces |
| Manufacturer | Nutricost |
| Material Features | Gluten Free |
| Material Type Free | Gluten Free and Non-GMO |
| Number of Items | 1 |
| Primary Supplement Type | L-Theanine |
| Product Benefits | Gluten Free |
| Special Ingredients | L-Theanine |
| Specific Uses For Product | Laboratory |
| Supplement Formulation | Individual Supplement |
| Total Servings Per Container | 500 |
| UPC | 810139572190 |
| Unit Count | 3.6 Ounce |
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**G
normal:)
tastes like nothing and feels like nothing lol. if you struggle to make yourself drink boring stuff, you might want to consider a flavored one or mix it with a flavored electrolyte something.
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
Trustpilot
2 weeks ago
2 weeks ago