February 21, 2026

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10 Best arginine supplements of 2026

Save up to 20% off

1

Pure Encapsulations
Pure Encapsulations L-Arginine - 1,400 mg - Support Nitric Oxide Production - Heart Health & Blood Flow - Gluten Free & Non-GMO - 90 Capsules
Main highlights

Cardiovascular Support
Supports cardiovascular health through nitric oxide production, aiding healthy dilation of blood vessels and maintaining circulation and normal blood flow.

Ideal for Blood Pressure Management
Recommended for individuals needing to manage blood pressure, improve circulation, and support cardiovascular health. Suitable for those with specific health conditions.

Customer Praise for Effectiveness
Highly effective in reducing inflammation, managing blood pressure, and improving overall cardiovascular health. Customers appreciate the clean feeling and quick results.
Key specs
- Form:Capsule
- Ingredient:L-arginine HCl
- Purity:Non-GMO & Gluten Free
- Dosage:1,400 mg
- Serving Size:2 capsules
9.8

Exceptional

Our Rating

9.9
quality of ingredients

8.7
worth the money

8.0
Packaging materials
How do we rank?

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2

Pure Encapsulations
Pure Encapsulations L-Arginine - 1,400 mg - Support Nitric Oxide Production - Heart Health & Blood Flow - Gluten Free & Non-GMO - 90 Capsules
Main highlights

Cardiovascular Support
Supports cardiovascular health through nitric oxide production, aiding healthy dilation of blood vessels and maintaining circulation and normal blood flow.

Ideal for Blood Pressure Management
Recommended for individuals needing to manage blood pressure, improve circulation, and support cardiovascular health. Suitable for those with specific health conditions.

Customer Praise for Effectiveness
Highly effective in reducing inflammation, managing blood pressure, and improving overall cardiovascular health. Customers appreciate the clean feeling and quick results.
Key specs
- Form:Capsule
- Ingredient:L-arginine HCl
- Purity:Non-GMO & Gluten Free
- Dosage:1,400 mg
- Serving Size:2 capsules
9.7

Exceptional

Our Rating

9.9
quality of ingredients

8.7
worth the money

8.0
Packaging materials
3

Best Naturals
(New Improved Formula) Best Naturals L-Arginine 1000 mg 120 Tablets - Pharmaceutical Grade L Arginine Supplement Promotes Nitric Oxide Synthesis
Main highlights

Purity and Quality Assurance
3rd Party Lab Tested; No artificial additives or common allergens.

Nitric Oxide Synthesis Support
Ideal for athletes and fitness enthusiasts seeking enhanced performance.

Customer Satisfaction
Praised for effectiveness and recommended by users for its results.
Key specs
- Form:Tablet
- Ingredient:L-Arginine
- Purity:3rd Party Lab Tested
- Dosage:120 Tablets
- Serving Size:1000 mg
9.5

Excellent

Our Rating

9.5
worth the money

9.3
materials Quality

8.9
simple to consume
4

Best Naturals
(New Improved Formula) Best Naturals L-Arginine 1000 mg 120 Tablets - Pharmaceutical Grade L Arginine Supplement Promotes Nitric Oxide Synthesis

10% Off
Main highlights

Purity and Quality Assurance
3rd Party Lab Tested; No artificial additives or common allergens.

Nitric Oxide Synthesis Support
Ideal for athletes and fitness enthusiasts seeking enhanced performance.

Customer Satisfaction
Praised for effectiveness and recommended by users for its results.
Key specs
- Form:Tablet
- Ingredient:L-Arginine
- Purity:3rd Party Lab Tested
- Dosage:120 Tablets
- Serving Size:1000 mg
9.3

Excellent

Our Rating

9.5
worth the money

9.3
materials Quality

8.9
simple to consume
5

NOW Foods
NOW Foods Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets
Main highlights

Double Strength L-Arginine Supplement
Provides 1,000 mg of L-Arginine per tablet, boosting nitric oxide.

Ideal for Fitness and Wellness
Perfect for enhancing workouts and improving overall circulation.

Praised for Libido Enhancement
Customers rave about improved sexual performance and energy.
Key specs
- Form:Tablets
- Ingredient:L-Arginine
- Purity:Non-GMO, Kosher
- Dosage:1,000 mg
- Serving Size:1,000 mg tablets
9.0

Excellent

Our Rating

9.1
quality of ingredients

8.9
worth the money

8.0
Flavor
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6

NOW Foods
NOW Foods Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets
Main highlights

Double Strength L-Arginine Supplement
Provides 1,000 mg of L-Arginine per tablet, boosting nitric oxide.

Ideal for Fitness and Wellness
Perfect for enhancing workouts and improving overall circulation.

Praised for Libido Enhancement
Customers rave about improved sexual performance and energy.
Key specs
- Form:Tablets
- Ingredient:L-Arginine
- Purity:Non-GMO, Kosher
- Dosage:1,000 mg
- Serving Size:1,000 mg tablets
8.7

Very Good

Our Rating

9.1
quality of ingredients

8.9
worth the money

8.0
Flavor
7

Nature's Bounty
Nature’s Bounty L-Arginine 1000mg for Supporting Blood Flow and Vascular Function – Non-GMO, Gluten Free, 50 Tablets

15% Off
Main highlights

Supports Blood Flow and Heart Function
Enhances circulation and contributes to healthy heart function with L-Arginine.

Ideal for Fitness Enthusiasts
Perfect for those seeking improved endurance and performance in workouts.

Praised for Energy Boost
Users appreciate the natural energy increase without jitters.
8.6

Very Good

Our Rating

8.7
worth the money

8.2
Sheerness

8.0
Flavor
8

Nature's Bounty
Nature’s Bounty L-Arginine 1000mg for Supporting Blood Flow and Vascular Function – Non-GMO, Gluten Free, 50 Tablets

20% Off
Main highlights

Supports Blood Flow and Heart Function
Enhances circulation and contributes to healthy heart function with L-Arginine.

Ideal for Fitness Enthusiasts
Perfect for those seeking improved endurance and performance in workouts.

Praised for Energy Boost
Users appreciate the natural energy increase without jitters.
8.5

Good

Our Rating

8.7
worth the money

8.2
Sheerness

8.0
Flavor
9

365 by Whole Foods Market

365 by Whole Foods Market, L Arginine 500Mg 100 Veggie Caps
8.3

Good

Our Rating
10

365 by Whole Foods Market

365 by Whole Foods Market, L Arginine 500Mg 100 Veggie Caps
8.1

Good

Our Rating

10 Best arginine supplements of 2026

1

Pure Encapsulations L-Arginine - 1,400 mg - Support Nitric Oxide Production - Heart Health & Blood Flow - Gluten Free & Non-GMO - 90 Capsules

9.9

8.7

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

Pure Encapsulations L-Arginine - 1,400 mg - Support Nitric Oxide Production - Heart Health & Blood Flow - Gluten Free & Non-GMO - 90 Capsules

9.9

8.7

8.0

3

(New Improved Formula) Best Naturals L-Arginine 1000 mg 120 Tablets - Pharmaceutical Grade L Arginine Supplement Promotes Nitric Oxide Synthesis

9.5

9.3

8.9

4

(New Improved Formula) Best Naturals L-Arginine 1000 mg 120 Tablets - Pharmaceutical Grade L Arginine Supplement Promotes Nitric Oxide Synthesis

9.5

9.3

8.9

5

NOW Foods Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets

9.1

8.9

8.0

6

NOW Foods Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*, Amino Acid, 120 Tablets

9.1

8.9

8.0

7

Nature’s Bounty L-Arginine 1000mg for Supporting Blood Flow and Vascular Function – Non-GMO, Gluten Free, 50 Tablets

8.7

8.2

8.0

8

Nature’s Bounty L-Arginine 1000mg for Supporting Blood Flow and Vascular Function – Non-GMO, Gluten Free, 50 Tablets

8.7

8.2

8.0

9

365 by Whole Foods Market, L Arginine 500Mg 100 Veggie Caps

10

365 by Whole Foods Market, L Arginine 500Mg 100 Veggie Caps

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