Integrative Therapeutics L-Theanine – Amino Acid Supplement for Stress & Relaxation Support* – Vegan, Gluten-Free & Dairy-Free – 60 Capsules (30 Servings) | ⭐ Flexiology.Store Recommended
$21.50
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Price: $21.50
(as of Oct 06, 2025 22:07:10 UTC – Details)
From the brand
Product Dimensions : 2.02 x 2.02 x 4.02 inches; 1.6 ounces
Item model number : 5450
Department : unisex-adult
Date First Available : December 2, 2007
Manufacturer : Integrative Therapeutics
ASIN : B0036H0CV6
Best Sellers Rank: #3,899 in Health & Household (See Top 100 in Health & Household) #52 in Blended Vitamin & Mineral Supplements
Customer Reviews: 4.6 4.6 out of 5 stars 1,285 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); } }); });
Amino Acid Supplement: L-Theanine is an amino acid that helps support a relaxed state without diminishing daytime alertness*
L-Theanine for Stress Support*: Controlled clinical trials have shown that L-theanine can support a healthy stress response*
Relaxation Support Supplement*: Adults take 2 capsules one to two times daily for relaxation support*
Vegan & Gluten-Free: This dietary supplement is vegan, soy-free dairy-free, gluten-free and doesn’t contain wheat, corn, or artificial colors or flavors
About Integrative Therapeutics: For over 25 years, patients and clinicians have trusted us for our dedication to quality, potency, and accuracy; transparency around our sourcing and manufacturing processes is part of our quality promise to you
Customers say
Customers find the L-Theanine supplement effective, noting it works well after just a few days and helps with anxiety at night without causing drowsiness. The supplement receives positive feedback for its quality, brand reputation, and value for money. While some customers report no unusual side effects, others mention experiencing stressful headaches. The pill size receives mixed reviews, with several customers noting it’s not 200mg per pill.
🌿 Expert Tip: Selected by our Flexiology Experts for quality & value.
⚠️ Disclaimer: Information is for educational purposes and not a substitute for medical advice. Consult your physician before use. Flexiology.Store is not responsible for any adverse effects.
8 reviews for Integrative Therapeutics L-Theanine – Amino Acid Supplement for Stress & Relaxation Support* – Vegan, Gluten-Free & Dairy-Free – 60 Capsules (30 Servings)
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Lindsey Balducci –
Great for Mood And Rest Highly recommend!
Love this supplement! Helps with my mood.. have taken this for years.. it was recommended to me by my naturopath doctor and I have also combined it with their lavender tablets at night.. both excellent products and very effective!
Amazon Customer –
L-Theanine
Review: Integrative Therapeutics L-Theanine – Amino AcidThis L-Theanine supplement is fantastic! It helps me feel calm and focused without any drowsiness. I take it daily, and it really supports relaxation and mental clarity. Highly recommend for anyone looking for a natural way to reduce stress.
Sarah –
Improved Focus and Stress Relief
I bought L-Theanine off of a recommendation of someone I trust – and I’m so glad I did! It’s become part of my daily supplement stack. Since taking it, I’ve felt more focused and less stressed. Even on tough days, I feel like I can handle things better and don’t crash at the end of the day. I’ve used this brand before and always find it to be high quality for a great price.
Kristiane Skolmen –
I love L-theanine
Effective, great right before bed!
Aland –
Everyone is different !
I do not take all of a new supplement if there is any way to reduce the dosage, especially if ppl are reporting any adverse side effects. I’ve been emptying at least half of the capsule out before taking right before bed. It’s definitely helping me sleep through the night so that has been great but I have also noticed a tiny bit of nausea as well as a groggy feeling in the morning. Trying to decide if I’m going to keep taking Tri Magnesium or not. And hoping I’ll be able to take the whole capsule eventually. It’s definitely strong!
Haley Frick –
Great supplement
I love these! Within a day or 2 I can feel the difference. No taste and does not make you burb.
Trevor J. Pagliara –
L-Theanine helps with anxiety and anxiousness and sleep.
I highly recommend L-Theanine. It is the one supplement I won’t go without. It helps take the edge off if I’m having anxiety with no side effects and I’m highly sensitive to side effects. It helps me sleep but I can also take in the morning and it doesn’t make me sleepy. I usually take one when I’m feeling anxious or when I know I’m not going to sleep well due to hormones. Love it and I recommend it all the time.
Lily F. –
Great company, great supplement
Always like to have a good quality Ltheanine in my cabinet. This is a good quality supplement. It is a god send when life gets stressful at times.