Overall pick
L-Theanine Capsules (200 MG) (30 Capsules)
Key item features
- Non GMO
- Gluten Free
- Third Party tested
- 1 Month Supply
- Nutricost Quality Guaranteed
- GMP compliant
Specs
- Medicine strength200mg
- Net content statement30 capsules
- Health concernGeneral Detox & Support
- Enteral medication formCapsules
- Product usage frequencyDaily
- Age groupAdult
Current price is USD$5.8819.6 ¢/count
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About this item
Product details
Nutricost L-Theanine offers a convenient way to incorporate this popular amino acid into your daily routine. Sourced with care and precision, each bottle contains 30 capsules of L-Theanine, packaged under strict quality standards. Produced in a GMP-compliant facility and verified by third-party laboratories, Nutricost ensures you’re getting a high-quality product with every serving.
- Non GMO
- Gluten Free
- Third Party tested
- 1 Month Supply
- Nutricost Quality Guaranteed
- GMP compliant
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. Â
Specifications
Medicine strength
200mg
Net content statement
30 capsules
Health concern
General Detox & Support
Enteral medication form
Capsules
Indications
Health Concern
General Detox & Support
Directions
Dosage
1 Capsule
Instructions
Suggested Use: As a dietary supplement, take 1 capsule daily with 8-10 oz of water or as directed by your healthcare professional. Notice: Store in a cool, dry place.
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Ingredients
Ingredients
L-Theanine, Gelatin Capsule, Rice Flour, Magnesium Stearate (vegetable source), Microcrystalline Cellulose, Silica.
Warnings
Warning Text
For healthy individuals 18 years and older. Consult a healthcare professional prior to use if you are pregnant or nursing, taking medication, or have a medical condition. Keep out of reach of children. Do not use if safety seal is broken or missing. Store in a cool, dry place.
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Showing 1-3 of 21 reviews
Sep 3, 2025
anonymous
5 out of 5 stars review
Verified Purchase
First time consumer, It's addictive.
I skipped the tablet couple of times, nothing happened. But once I stopped taking them for 3 nights, boom some kind of restlessness. It's hard to explain but there was some kind of uneasy chatter, as if my brain is going numb (something parallel to hands or legs going numb). Never consuming it again, not the 200mg variant.
Helpful?24EEJJFJHD311284580005
May 15, 2026
angela
5 out of 5 stars review
Verified Purchase
Best quality brand.
I have found that this brand of L-theinine works noticably better than others I've tried. I'm not sure how that's possible, given that they should have the same amount of the same ingredients listed. However, it does prove superior to spring valley (that's the only other brand I've used, which I recall the name of), even at the same dosage.
Helpful?24EEJJFJHD311284580005
Dec 19, 2025
Walmart customer
Top Reviewer
5 out of 5 stars review
Verified Purchase
I trust Nutra cost with all my supplements. They third-party test, which is so important to know that they are held to a high standard and meet or exceed that
Helpful?24EEJJFJHD311284580005
