





Price: $40.00 - $35.80
(as of Nov 05, 2025 10:05:42 UTC – Details)
L-Theanine 200mg Supplement.
Package Dimensions : 5.04 x 3.9 x 2.87 inches; 0.01 ounces
Date First Available : December 17, 2024
Manufacturer : Distributed by Nutra Harmony LLC
ASIN : B0DQQBMP4R
Best Sellers Rank: #6,112 in Health & Household (See Top 100 in Health & Household) #1,766 in Blended Vitamin & Mineral Supplements
Customer Reviews: 4.6 4.6 out of 5 stars 1,217 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
L Theanine Supplement — Don’t stress & do your best! Sleep well with l theanine 400mg! Provides calming & relaxing effect on the body, supports good sleep, and the ability to deal with stress.
Calm, Sleep & Relax — L theanine works by encouraging brain-wave activity, which improves concentration by reducing distractions and promoting a more focused state of mind
100% Natural Source — L Theanine effectively relaxes and relieves mental and physical tension. It has a natural ability to deal with nervousness and stress-related sleep problems. Found and made from the purest, highest quality green tea!
Made in the USA — L theanine from NUTRAHARMONY does not contain GMOs; it’s dairy-free, gluten-free, nut-free, wheat-free, soy-free, nightshade-free, and sugar-free. L-theanine is a perfect addition to your gluten-free & vegan lifestyle with advanced support and significant effects
Quality Matters — NUTRAHARMONY ltheanine vitamin is an excellent and effortless choice for improving your health. If you want to share your experience or have questions about l- theanine, message us. Our support team works 24/7. Maintain your health anytime, anywhere with a ltheanine supplement!
8 reviews for L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 240 Vegan Capsules
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$35.80

Samuel E. Torbert –
Powerful and does a good job
Helps me stay asleep
Tamar –
Improved my sleep drastically
Great price for the supplement, has definitely improved my sleep. It’s well packaged and of high quality.
Dee –
Exactly as advertised! Your experience may vary
Amazing! It helps with anxiety, clarity, sleepIt very good!I wish I’d known about this before my Xanax RX was stopped
SMC –
Excelent!
Excelente product
John-Mark and Tuesdy Dadulo –
Works great!
Works great and helps me go to sleep and stay asleep.
gabriela –
Happy mood
The best mood support for me as a mom of two.You really see the changes and enjoy more your day with a clear mind. I am taking one in the morning and one in the afternoon.
William –
New supplement
New item to explore the benefits of using this supplement . So far it seems to be a benefit for the couple of days I have been using this product.A later updated review in a month.
melissa –
It’s not “Extra Strength”. Misleading!
I bought this because I usually have to take (2) 200mg capsules and I thought that this saying it was 400mg “Extra Strength “ that it would be convenient to only take one capsule instead. Wrong. It’s just slimey marketing. It’s the same exact 200mg capsules that I’m used to, which still works but it’s frustrating when your mislead.