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L-Arginine L-Citrulline Complex

Source Naturals
4.5
(3852 ratings)
Citrulline 250 mg
Arginine 750 mg
Product Image
Score 80.0

A combined L-Arginine (in HCl form) and L-Citrulline supplement from Source Naturals, targeting nitric oxide production, with a slightly higher arginine dose per tablet but requiring multiple servings for full efficacy.

Quantity: 120 Tablet(s)Servings size: 1 Tablet(s) (120 servings)
Selected goals:
Other goals:
Fitness
Muscle Gain
Cardiovascular Support
Heart Health

Score 80.0

A combined L-Arginine (in HCl form) and L-Citrulline supplement from Source Naturals, targeting nitric oxide production, with a slightly higher arginine dose per tablet but requiring multiple servings for full efficacy.

Quantity: 240
Analysis

This Source Naturals product offers a combination of L-Arginine Hydrochloride (750mg) and L-Citrulline (250mg) per serving, alongside a minimal calorie count. The inclusion of L-Arginine HCl is notable as it is a common and generally well-absorbed form of arginine. Similar to other supplements in this category, it aims to boost nitric oxide levels for improved blood flow, muscle pump, and cardiovascular health. While the L-Arginine dose is slightly higher than the NOW Sports options per serving, the L-Citrulline dose remains quite low, and overall, multiple tablets would still be required to achieve dosages typically associated with significant benefits in fitness or cardiovascular research. It's a reliable option, but not the most economical for higher dosages.

Pros
  • Contains L-Arginine in the Hydrochloride (HCl) form, which is generally considered well-absorbed, potentially enhancing its effectiveness.
  • Provides a slightly higher dose of L-Arginine per serving (750mg) compared to some standard arginine supplements, offering more of this key amino acid per pill.
  • Source Naturals is a respected brand in the supplement industry, known for its commitment to quality and comprehensive formulations.
Cons
  • The dosage of L-Citrulline (250mg) is quite low, and even the 750mg of L-Arginine HCl would require multiple tablets to reach clinically effective levels for many individuals, similar to other capsule products.
  • At $0.15 per serving, it's less cost-effective than the larger 240-count NOW Sports product, especially when factoring in the need for multiple servings to achieve desired physiological benefits.
Warnings
  • Individuals with low blood pressure or those taking blood pressure medications should consult a healthcare professional, as L-Arginine and L-Citrulline can affect blood pressure.
  • Consult a doctor before use if you have any pre-existing medical conditions, are pregnant or nursing, or are on any other medications, especially those for cardiovascular conditions or erectile dysfunction.
  • People prone to herpes outbreaks should be cautious due to arginine's potential impact on viral replication.
$16.37($0.13 per serving)
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Ingredients
IngredientAmount per serving
Calories 5 Calorie(s)
L-Arginine (L-Arginine Hydrochloride) 750 mg
L-Citrulline 250 mg
Gluten Free Adults 18–50 Dairy Free
Categories
Arginine 78.0
Offers 750mg of L-Arginine HCl per serving, which is a readily absorbed form of arginine and a decent dose per pill for foundational support. However, higher daily doses would be necessary to maximize its benefits, and the price point is less competitive for such an intake.
Citrulline 75.0
Contains L-Citrulline, which effectively boosts L-Arginine levels for nitric oxide production. However, the 250mg dosage per tablet is on the lower side for standalone citrulline effects, meaning multiple tablets are needed to achieve more pronounced benefits.
Goals
Fitness 80.0
This product combines L-Arginine HCl and L-Citrulline, ingredients known to support blood flow and athletic performance. While the per-capsule dosage is modest, users can take multiple tablets to leverage the benefits for enhanced endurance and muscle pump during workouts.
Cardiovascular Support 80.0
By providing precursors to nitric oxide, this supplement can aid in maintaining healthy vascular tone and blood pressure. The presence of L-Arginine HCl is a good feature, though higher doses through multiple tablets would be needed for optimal cardiovascular support.
Muscle Gain 78.0
While L-Arginine and L-Citrulline can aid in nutrient delivery to muscles and support the 'pump' sensation, the limited per-serving dosage means its direct impact on muscle gain would be minimal without taking several tablets, making it less practical for this goal.
85 Value

L-Arginine + L-Citrulline 750 mg

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4.7
(1239 ratings)
Provides a similar blend (500mg Arginine, 250mg Citrulline per serving) at a significantly lower price per serving, offering much better value for comparable foundational nitric oxide support.
82 Value

L-Arginine 1000 mg

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(9054 ratings)
Delivers a higher 1000mg dose of L-Arginine per serving at a substantially lower price per serving, providing excellent value for a potent single-ingredient Arginine supplement.
78 Value

L-Arginine L-Citrulline Complex

Source Naturals
4.5
(3843 ratings)
This is the larger quantity version of the same product, offering an identical formulation at a lower price per serving, thereby providing better value for consistent use.
95 Performance

Arginine Citrulline

MNP Michael's Naturopathic Programs
4.8
(196 ratings)
Features exceptionally high dosages of both L-Arginine (2250mg) and L-Citrulline (750mg) plus Beet, providing a far more potent and comprehensive nitric oxide boost for all stated goals.
90 Performance

N.O. Pro with Beet Root

ZHOU
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(3540 ratings)
Offers a multi-form blend of Arginine (2400mg total) and Citrulline Malate (610mg), along with Beet, delivering a more advanced and effective nitric oxide boosting profile compared to Source Naturals.
88 Performance

Nitric Oxide Booster

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4.8
(389 ratings)
Combines multiple forms of Arginine (1500mg total) and Citrulline (750mg total, including malate), offering a higher overall dosage and potentially better absorption for enhanced performance benefits.
80 Budget

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Offers an identical ingredient profile (500mg Arginine, 250mg Citrulline, assuming per serving from product name) at a significantly lower total price, making it a highly cost-effective alternative.
75 Budget

L-Arginine 500 mg

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4.7
(3442 ratings)
A much cheaper pure L-Arginine option, ideal for those on a tight budget who prioritize basic arginine supplementation over the combined effect.
78 Budget

L-Arginine 500 mg

California Gold Nutrition
4.7
(9664 ratings)
Provides a solid L-Arginine dose at a very competitive total price, offering an economical choice for general nitric oxide support.
85 Value

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Provides a similar blend (500mg Arginine, 250mg Citrulline per serving) at a significantly lower price per serving, offering much better value for comparable foundational nitric oxide support.
82 Value

L-Arginine 1000 mg

21st Century
4.7
(9054 ratings)
Delivers a higher 1000mg dose of L-Arginine per serving at a substantially lower price per serving, providing excellent value for a potent single-ingredient Arginine supplement.
78 Value

L-Arginine L-Citrulline Complex

Source Naturals
4.5
(3843 ratings)
This is the larger quantity version of the same product, offering an identical formulation at a lower price per serving, thereby providing better value for consistent use.
95 Performance

Arginine Citrulline

MNP Michael's Naturopathic Programs
4.8
(196 ratings)
Features exceptionally high dosages of both L-Arginine (2250mg) and L-Citrulline (750mg) plus Beet, providing a far more potent and comprehensive nitric oxide boost for all stated goals.
90 Performance

N.O. Pro with Beet Root

ZHOU
4.2
(3540 ratings)
Offers a multi-form blend of Arginine (2400mg total) and Citrulline Malate (610mg), along with Beet, delivering a more advanced and effective nitric oxide boosting profile compared to Source Naturals.
88 Performance

Nitric Oxide Booster

Nutricost Performance
4.8
(389 ratings)
Combines multiple forms of Arginine (1500mg total) and Citrulline (750mg total, including malate), offering a higher overall dosage and potentially better absorption for enhanced performance benefits.