10 Best l theanines of 2025

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Best Choice

1

Pure Encapsulations

Pure Encapsulations L-Theanine - Amino Acid Supplement to Support Relaxation, Stress & Nervous System - 60 Capsules
9.8

Exceptional

Our Rating
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Value for Money

2

Santa Cruz Paleo

Santa Cruz Paleo L-Theanine Supplement for Relaxation and Sleep Support with Passion Flower, Lemon Balm, Valerian Root, Gluten Free, Keto, Sugar Free, Paleo, 60 Capsules
9.6

Exceptional

Our Rating
3

Nature's Trove
L-Theanine 200mg by Nature's Trove - 120 Vegetarian Capsules
Main highlights

Key Features
Promotes relaxation without drowsiness, natural ingredients, made in USA, GMP NSF Certified, Kosher, available in SUPER VALUE SIZE.

Ideal Use Cases
Perfect for those seeking a natural way to restore calm and achieve a relaxed state, especially beneficial for stress relief.

Customer Praise
Most reviews highlight its effectiveness in promoting a sense of calm and relaxation without the side effects typically associated with other remedies.
Key specs
- Capsules:365
- Form:Vegetarian Capsules
- Ingredients:L-Theanine, green tea
- Benefits:Promote relaxation, calm
- Serving Size:N/A
9.4

Excellent

Our Rating

9.9
Mobile App

9.9
simple to consume

9.7
worth the money
4

SPORTS RESEARCH
Sports Research Double Strength L-Theanine Supplement - Suntheanine Softgels for Focus, Relaxation & Alertness - Non-Drowsy Support Made with Coconut Oil, Non-GMO & Gluten Free - 200mg, 60 Count

22% Off
Main highlights

Key Features
Enhances relaxation, focus, and alertness with 200mg of L-Theanine, using patented Suntheanine for jitter-free energy. Non-GMO, gluten-free, and soy-free.

Ideal Use Cases
Perfect for replacing caffeine routines, improving meditation or study sessions, and supporting calm focus in high-stress scenarios without energy crashes.

Customer Praise
Most reviews highlight significant improvements in daily focus and stress management, appreciating the natural, jitter-free energy boost.
Key specs
- Function:Alertness, relaxation
- Support:Relaxation, calm, focus
- Form:Liquid softgel
- Ingredient:L-Theanine
- Benefits:No jitters or crash
9.1

Excellent

Our Rating

9.7
simple to consume

9.7
quality of ingredients

9.5
Flavor
5

NEW AGE

NEW AGE Cortisol Supplement for Women - Cortisol Detox Manager Reducer- Ashwagandha, GABA, 5 HTP, L-Tryptophan, L-Theanine - 90 Count
9.0

Excellent

Our Rating
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6

Nutricost
Nutricost L-Theanine 200mg, 120 Capsules, Double Strength - Non-GMO, Gluten Free

14% Off
Main highlights

Key Features
200mg of L-Theanine per serving, 120 capsules per bottle, manufactured in a GMP compliant, FDA registered facility for quality assurance.

Ideal Use Cases
Perfect for stress reduction, promoting relaxation without drowsiness, and enhancing mental clarity and focus, especially in demanding situations.

Customer Reviews Summary
Most reviews highlight the effective stress relief and improved focus without side effects, appreciating the product`s consistency and purity.
Key specs
- Capsules:120
- Form:Capsules
- Ingredients:L-Theanine
- Benefits:N/A
- Serving Size:200mg L-Theanine
8.9

Very Good

Our Rating

9.5
simple to consume

9.3
worth the money

9.1
Flavor
7

NOW Foods
NOW Foods Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 Veg Capsules
Main highlights

Stress Management and Relaxation
L-Theanine 200 mg with Inositol promotes relaxation without drowsiness or negative side effects.

Ideal for Anxiety and Stress Relief
Best used for managing anxiety and stress, suitable for daily use.

Highly Praised Calming Effect
Customers commend its ability to calm anxiety and enhance focus.
8.7

Very Good

Our Rating

9.7
simple to consume

9.1
Flavor

9.1
worth the money
8

Nature Made
Nature Made Chewable L Theanine 200mg, L-Theanine Supplement for Stress Relief, 50 Chewable Tablets, 50 Day Supply
Main highlights

Fast-Acting Stress Relief
Nature Made L-Theanine tablets work within 30 minutes for quick relaxation without drowsiness.

Ideal for On-the-Go Stress Management
Perfect for adults needing fast stress relief, chew one tablet as needed.

Delicious Tropical Flavor
Customers love the tasty, tropical fruit flavor of these chewable tablets.
Key specs
- Capsules:50 count
- Form:Chewable tablet
- Ingredients:L-Theanine, tropical fruit flavor
- Benefits:Stress support, relax mind
- Serving Size:1 tablet
8.6

Very Good

Our Rating
9

NOW Foods
NOW Foods Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 60 Veg Capsules

46% Off
Main highlights

Key Features
Promotes relaxation, supports healthy vascular function with inositol, vegan, kosher, Non-GMO, dairy-free, and GMP Quality Assured.

Ideal Use Cases
Ideal for those seeking stress relief without drowsiness, and for individuals focused on brain and nervous system health.

Customer Reviews Summary
Most praised for effectively promoting relaxation without negative side effects, highlighting the product`s efficacy and quality.
Key specs
- Vegetarian:Vegan, Kosher
- Active Ingredient:Inositol
- Package Type:N/A
- Form:N/A
- Fertility Support:N/A
8.3

Good

Our Rating

9.5
Flavor

8.9
Precision

8.7
worth the money
10

Horbäach
Horbäach L-Theanine | 400mg | 120 Capsules | Non-GMO & Gluten Free

14% Off
Main highlights

Key Features
High potency 400 mg L-Theanine for quick release. Expertly crafted for purity. Free of gluten, wheat, yeast, lactose, soy, and non-GMO.

Ideal Use Cases
Perfect for enhancing relaxation without drowsiness, improving concentration and focus, and supporting a calm, balanced mood.

Customer Reviews Highlight
Most praised for its effective stress reduction and relaxation benefits without sedative effects, improving overall well-being.
8.0

Good

Our Rating

9.7
simple to consume

9.3
worth the money

9.3
Flavor

10 Best l theanines of 2025

1

Pure Encapsulations L-Theanine - Amino Acid Supplement to Support Relaxation, Stress & Nervous System - 60 Capsules

How do we rank?

How do we rank?

Analyzing top stores

2

Santa Cruz Paleo L-Theanine Supplement for Relaxation and Sleep Support with Passion Flower, Lemon Balm, Valerian Root, Gluten Free, Keto, Sugar Free, Paleo, 60 Capsules

3

L-Theanine 200mg by Nature's Trove - 120 Vegetarian Capsules

9.9

9.9

9.7

4

Sports Research Double Strength L-Theanine Supplement - Suntheanine Softgels for Focus, Relaxation & Alertness - Non-Drowsy Support Made with Coconut Oil, Non-GMO & Gluten Free - 200mg, 60 Count

9.7

9.7

9.5

5

NEW AGE Cortisol Supplement for Women - Cortisol Detox Manager Reducer- Ashwagandha, GABA, 5 HTP, L-Tryptophan, L-Theanine - 90 Count

6

Nutricost L-Theanine 200mg, 120 Capsules, Double Strength - Non-GMO, Gluten Free

9.5

9.3

9.1

7

NOW Foods Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 120 Veg Capsules

9.7

9.1

9.1

8

Nature Made Chewable L Theanine 200mg, L-Theanine Supplement for Stress Relief, 50 Chewable Tablets, 50 Day Supply

9

NOW Foods Supplements, L-Theanine 200 mg with Inositol, Stress Management*, 60 Veg Capsules

9.5

8.9

8.7

10

Horbäach L-Theanine | 400mg | 120 Capsules | Non-GMO & Gluten Free

9.7

9.3

9.3

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