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L-Arginine 500 mg

Swanson

4.7
(3442 ratings)
Arginine 500 mg
Product Image
Score 98.0

The most cost-effective 500mg L-Arginine supplement, offering exceptional value and large quantity.

Quantity: 200 Capsule(s)Servings size: 1 Capsule(s) (200 servings)
Selected goals:
Other goals:
Fitness
Heart Health
Muscle Gain
Cardiovascular Support

Score 98.0

The most cost-effective 500mg L-Arginine supplement, offering exceptional value and large quantity.

Analysis

This Swanson L-Arginine product provides 500mg of L-Arginine per capsule and stands out for its remarkably low price per serving (4 cents) and generous quantity (200 capsules). This combination makes it exceptionally cost-effective for users who require higher daily doses, as they can simply take multiple capsules without incurring significant expense. It is a highly practical choice for budget-conscious consumers seeking consistent L-Arginine supplementation.

Pros
  • Unbeatable price per serving (4 cents), making it the most economical L-Arginine option on the market.
  • Large quantity (200 servings) ensures long-lasting supply and reduces frequency of repurchase.
  • Allows for highly flexible dosing to reach optimal L-Arginine intake for various goals.
  • Very high review count (3121) indicates strong user satisfaction and reliability.
Cons
  • The 500 mg dose per capsule might require taking multiple capsules to reach higher therapeutic dosages (e.g., 3-6 grams daily).
  • As a budget brand, some users may prefer brands with more explicit third-party purity certifications.
Warnings
  • Individuals taking medications for blood pressure or erectile dysfunction should consult a doctor due to potential additive effects.
  • Discontinue use if any adverse reactions like stomach upset or skin rashes occur.
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$10.99($0.05 per serving)
iHerb
$ 10.99
Amazon
$ 26.33
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Effectiveness for goals

Dosage, timing & forms

Safety & interactions

Ingredients

IngredientAmount per serving
L-Arginine 500 mg
Adults 18–50
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Categories

This product sets the benchmark for value within the L-Arginine collection, offering a substantial quantity at an exceptionally low price per serving. Its affordability and flexibility for dosing make it a superior choice for any consumer seeking effective L-Arginine supplementation without significant financial outlay.

Goals

Its excellent value allows for sustained daily intake of therapeutic L-Arginine doses (e.g., 3-6 grams), which is critical for continuous nitric oxide production to support healthy blood pressure, arterial flexibility, and overall cardiovascular well-being. This makes it an ideal long-term solution.
The extreme affordability of this product makes it highly practical for consistent, higher dosing (e.g., 4-6 capsules for 2-3g) needed to maximize nitric oxide production for enhanced blood flow, muscle pump, and nutrient delivery during intense workouts, directly supporting fitness goals.
By facilitating high and consistent L-Arginine intake at a low cost, this product supports improved circulation and nutrient transport to muscles, which is crucial for recovery and indirectly aids muscle growth. It provides a foundational element for a comprehensive muscle-building regimen.
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L-Arginine 1000 mg

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Provides double the dosage (1000 mg) per tablet at a very competitive price per serving (8 cents), offering superior convenience for higher intake with excellent overall value.
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L-Arginine + L-Citrulline 750 mg

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L-Arginine + L-Citrulline 750 mg

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Combines L-Arginine with L-Citrulline, which is widely regarded as a more effective precursor to sustained nitric oxide levels due to its better absorption and less metabolism in the gut, offering superior benefits.
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L-Arginine 3000 mg

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Offers a significantly higher 3000 mg dose of L-Arginine per serving, along with B vitamins, providing a more potent impact and greater convenience for individuals seeking substantial therapeutic doses of L-Arginine.
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L-Arginine 500 mg

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While this product is already extremely cheap, the alternative offers a very similar profile at a slightly higher but still excellent 5 cents per serving, providing comparable value if this specific SKU is unavailable.
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L-Arginine 500 mg

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A highly popular product with an excellent review count, offering 500mg L-Arginine at a very competitive price per serving (9 cents), making it a good alternative for value seekers.
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L-Arginine 1000 mg

21st Century
4.7
(9054 ratings)
Although twice the dose, its 8 cents per serving still represents fantastic value. It's cheaper per milligram of L-Arginine for those who prefer 1000mg doses in a single pill.
95 Value

L-Arginine 1000 mg

21st Century
4.7
(9054 ratings)
Provides double the dosage (1000 mg) per tablet at a very competitive price per serving (8 cents), offering superior convenience for higher intake with excellent overall value.
90 Value

L-Arginine 700 mg

NOW
4.8
(835 ratings)
Offers a higher 700 mg dose per capsule at a competitive 8 cents per serving, representing a strong value choice for those seeking a more potent single-capsule dose than 500mg.
90 Value

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Though slightly higher in price per serving (7 cents), it includes L-Citrulline, offering a more effective and synergistic approach to nitric oxide support, thus providing better value for comprehensive benefits.
92 Performance

N.O. Pro with Beet Root

ZHOU
4.2
(3540 ratings)
This comprehensive formula includes L-Arginine in multiple forms, L-Citrulline Malate, and Beet Root, providing a multi-pathway approach to nitric oxide production that is often more effective and sustained than single-ingredient L-Arginine.
90 Performance

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Combines L-Arginine with L-Citrulline, which is widely regarded as a more effective precursor to sustained nitric oxide levels due to its better absorption and less metabolism in the gut, offering superior benefits.
87 Performance

L-Arginine 3000 mg

Natrol
4.5
(8168 ratings)
Offers a significantly higher 3000 mg dose of L-Arginine per serving, along with B vitamins, providing a more potent impact and greater convenience for individuals seeking substantial therapeutic doses of L-Arginine.
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