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Nutricost

L-Theanine, Unflavored, 3.6 oz (100 g)

4.8 · 1949 reviews
1,694 ₽

200 mg Per Serving 500 Servings Dietary Supplement Nutricost® - Quality Guaranteed Vegetarian Product GMP Compliant Facility Non-GMO Product Third Party Tested Gluten-Free We believe supplements should be simple, transparent, and accessible. That’s why Nutricost focuses on quality ingredients, clear labeling, and prices that make sense — without unnecessary fillers or inflated costs.

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200 mg Per Serving 500 Servings Dietary Supplement Nutricost® - Quality Guaranteed Vegetarian Product GMP Compliant Facility Non-GMO Product Third Party Tested Gluten-Free We believe supplements should be simple, transparent, and accessible. That’s why Nutricost focuses on quality ingredients, clear labeling, and prices that make sense — without unnecessary fillers or inflated costs.

Customer reviews

5.0
verified purchase
500 200 mg servings of L-Theanine!

I take it because it helps me sleep better. The packaging is great. The taste is horrible if you scoop the powder directly into your mouth (don't do that!) but the ingredient is basically tasteless when dissolved in water/tea. Great size and good quality! Definitely feeling the calming benefits at night.

4/9/2026
5.0
verified purchase
Calm and Focused Support

I’ve been using Nutricost L-Theanine for a few weeks, and it really helps me stay calm and focused without causing drowsiness. The unflavoured powder is easy to mix into water or tea, making it convenient for daily use. The product is high-quality and dissolves well, and a small amount goes a long way, so the container lasts a long time. I’ve noticed better relaxation and improved mental clarity since adding this to my routine. Highly recommended for anyone looking for natural support for calmness and focus. Rating: ⭐⭐⭐⭐⭐ (5/5)

10/17/2025
5.0
verified purchase
L- Theanine

I've been taking Nutricost L-theanine for a few weeks now, and I've noticed a significant reduction in stress and anxiety. The quality of the supplement is excellent, with no fillers or artificial ingredients. L-theanine has helped me relax and focus, improving my overall mental well-being. I appreciate the calming effects without feeling drowsy.I add L-theanine to my morning coffee, and it enhances the focus and calmness. The large pack size with 500 servings is a great value for the price, making it an excellent choice for long-term use.

9/10/2025
5.0
verified purchase
Good L-Theanine

This was my first time trying l-theanine. I like that it comes in a powder form, with many servings, so I can add it to water or juice. It is flavorless, so it does not impact the taste of the drink. I think it helps me stay calm and focused.

2/17/2025
5.0
verified purchase
Superb

absolute staple for smoothing out high stim pre-workouts. raw powder form is way more cost effective then caps since i calibrate doses anywhere from 200mg to 400mg depending on how much anhydrous caffeine/yohimbine is in my session stack. dissolves prety easily in water, almost no residual bitter taste. eliminates the jitters and vasoconstrictive anxious edge without blunting central nervous system drive or power output. scale out ur grams accurately though, raw bulk powder can be easy to misdose if ur just eyeballing scoops.

8/1/2026
5.0
verified purchase
Effective and easy to use

Effective and easy to use No complaints, works well. The size of the container is convenient and the powder dissolves easily. A high-quality ingredient that does exactly what it's supposed to do. I like the size and form of the package and the fine composition. benefits calm and gentle energy levels.

4/1/2026
4.0
verified purchase
love the big size

good quality.packaging is good also.igot it previous day and using it instantly.hopefully will get the best result.if its work properly, will be my regular part of diet.anyone plz let me know how can I get real benefits taking ltheanine.

3/12/2026
5.0
verified purchase
Excellent value L-Theanine

This canister style container of powder is the best value for the quality you get in L-theanine powder. No added filler ingredients. Just the pure powder and a scoop perfectly sized for an easy 200mg dose. The powder is very fine grain like dust. It has no significant flavor. This package will last a very long time with 500 servings. I like it a lot and will rebuy this brand for the value.

3/1/2026
5.0
verified purchase
Excellent product

I buy a lot of things every month and reviewing each one individually would be overwhelming. So, I created this template. If you're reading this, it means I'm very satisfied with this product and future buyers can purchase with confidence. Of course, I'm not an irrensponsible buyer and if product isn't good, I'll also take the time to write, a proper review.

12/16/2025
5.0
verified purchase
Great L-theanine powder form choice

I’ve been using this long enough to leave an informed review. I like the quality ingredients and wanted to try a powder form for flexibility in different drinks. The effects are as expected from L-theanine and I now take it in the AM as well as PM. The size is more than adequate and a good value. The packaging is convenient for a quick scoop and go. Tasteless or doesn’t taste bad.

12/7/2025