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Arginine & Citrulline 500 mg / 250 mg

NOW Sports
4.7
(4240 ratings)
Citrulline 250 mg
Arginine 500 mg
Product Image
Score 90.0

A larger, more cost-effective version of a combined L-Arginine and L-Citrulline supplement from a trusted brand, promoting nitric oxide production, which is ideal for those who require higher daily dosages.

Quantity: 240 Capsule(s)Servings size: 1 Veg Capsule(s) (240 servings)
Selected goals:
Other goals:
Fitness
Muscle Gain
Cardiovascular Support
Heart Health

Score 90.0

A larger, more cost-effective version of a combined L-Arginine and L-Citrulline supplement from a trusted brand, promoting nitric oxide production, which is ideal for those who require higher daily dosages.

Quantity: 120
Analysis

Identical in formulation to the 120-count bottle, this 240-count product from NOW Sports provides L-Arginine and L-Citrulline to support nitric oxide production and blood flow. The combination leverages L-Citrulline's superior bioavailability to boost L-Arginine levels, enhancing the vasodilatory effects. Although the dosage per capsule (500mg L-Arginine, 250mg L-Citrulline) is low for clinically significant effects, this larger quantity offers a better price per serving, making it more economical for users who plan to take multiple capsules daily to reach desired dosages. The long-standing reputation of NOW Sports further adds to its appeal as a reliable and effective supplement.

Pros
  • Offers excellent value per serving compared to the smaller bottle, significantly reducing the cost when taking higher daily dosages for effective results.
  • Combines L-Arginine and L-Citrulline for synergistic nitric oxide production and enhanced bioavailability, providing comprehensive circulatory support.
  • Backed by NOW Sports, a highly reputable brand known for stringent quality control, third-party testing, and positive consumer reviews.
Cons
  • Individual capsule dosages of 500mg L-Arginine and 250mg L-Citrulline are low, still requiring several capsules to achieve research-supported therapeutic levels for performance or cardiovascular benefits.
  • While more economical than the smaller bottle, the capsule form may still be less convenient for very high doses compared to powdered supplements where larger amounts can be mixed easily.
Warnings
  • Individuals with low blood pressure should consult a healthcare professional before use, as L-Arginine and L-Citrulline can further lower blood pressure due to their vasodilatory effects.
  • People with herpes simplex should exercise caution as Arginine can potentially exacerbate outbreaks by promoting viral replication.
  • Consult a doctor if you are pregnant, nursing, have a pre-existing medical condition (especially heart conditions or kidney disease), or are taking any medications, particularly those for blood pressure, nitrates, or erectile dysfunction, before taking this supplement.
$23.76($0.09 per serving)
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Ingredients
IngredientAmount per serving
L-Arginine 500 mg
L-Citrulline 250 mg
Gluten Free Adults 18–50 Kosher Dairy Free
Categories
Citrulline 90.0
Contains L-Citrulline, which is highly effective for raising plasma arginine levels and thus nitric oxide, supporting vascular function. The superior value of this larger bottle makes consistent and higher intake of this beneficial amino acid very practical.
Arginine 88.0
Provides L-Arginine as part of an effective blend from a leading brand. The significant quantity per bottle ensures that users can economically dose L-Arginine to their desired levels for nitric oxide support and its associated benefits.
Goals
Fitness 90.0
Offering the same effective combination of L-Arginine and L-Citrulline in a larger, more economical size, this product significantly enhances the practicality of achieving optimal dosages for improved endurance and workout performance. The better value allows for more consistent higher dosing.
Cardiovascular Support 90.0
As the largest and most affordable option per capsule within this comparison set, this product is an excellent choice for long-term cardiovascular health support through sustained nitric oxide production. It enables consistent higher dosing, which is often recommended for heart health benefits.
Muscle Gain 88.0
This bulk offering provides a cost-effective way to utilize the nitric oxide-boosting properties of arginine and citrulline for enhanced muscle pump, nutrient delivery, and recovery. It makes it more feasible to take the necessary multiple capsules for noticeable effects related to muscle development.
75 Value

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Offers the exact same L-Arginine (500mg) and L-Citrulline (250mg) per serving as the original but at an even lower price per serving, providing superior value for the identical formulation.
70 Value

L-Arginine 1000 mg

21st Century
4.7
(9054 ratings)
Delivers a higher dose of L-Arginine per serving (1000mg) at a lower price per serving, providing more active ingredient for the cost, which is beneficial for those focusing primarily on arginine.
72 Value

L-Citrulline 1000 mg

Nutricost
4.5
(327 ratings)
Provides a concentrated 1000mg dose of L-Citrulline per serving at a very competitive price, offering excellent value for those prioritizing Citrulline's NO-boosting pathway.
85 Performance

N.O. Pro with Beet Root

ZHOU
4.2
(3540 ratings)
Provides a far more comprehensive blend of Arginine forms, Citrulline Malate, and Beet Root, offering superior nitric oxide boosting capabilities for enhanced fitness and cardiovascular benefits.
90 Performance

SuperPump Aggression Mayhem Mango

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4.3
(669 ratings)
This pre-workout is packed with a very high dose of L-Citrulline (4000mg) and other performance ingredients, making it significantly more effective for intense fitness and muscle gain goals.
80 Performance

Arginine Citrulline

MNP Michael's Naturopathic Programs
4.8
(196 ratings)
Offers significantly higher dosages of both L-Arginine (2250mg) and L-Citrulline (750mg) per serving, alongside Beet, making it considerably more potent for nitric oxide support and overall efficacy.
65 Budget

L-Arginine 500 mg

Swanson
4.7
(3442 ratings)
Significantly cheaper in total price, providing basic L-Arginine support at a low cost, although it lacks Citrulline.
60 Budget

L-Arginine 500 mg

Mason Natural
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(240 ratings)
Offers L-Arginine at a highly affordable total price, making it a budget-friendly option for general arginine supplementation.
68 Budget

L-Arginine 500 mg

California Gold Nutrition
4.7
(9664 ratings)
A very reasonably priced L-Arginine product from a reputable brand, providing a basic Arginine dose at a low total cost for those not needing Citrulline.
75 Value

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Offers the exact same L-Arginine (500mg) and L-Citrulline (250mg) per serving as the original but at an even lower price per serving, providing superior value for the identical formulation.
70 Value

L-Arginine 1000 mg

21st Century
4.7
(9054 ratings)
Delivers a higher dose of L-Arginine per serving (1000mg) at a lower price per serving, providing more active ingredient for the cost, which is beneficial for those focusing primarily on arginine.
72 Value

L-Citrulline 1000 mg

Nutricost
4.5
(327 ratings)
Provides a concentrated 1000mg dose of L-Citrulline per serving at a very competitive price, offering excellent value for those prioritizing Citrulline's NO-boosting pathway.
85 Performance

N.O. Pro with Beet Root

ZHOU
4.2
(3540 ratings)
Provides a far more comprehensive blend of Arginine forms, Citrulline Malate, and Beet Root, offering superior nitric oxide boosting capabilities for enhanced fitness and cardiovascular benefits.
90 Performance

SuperPump Aggression Mayhem Mango

Gaspari Nutrition
4.3
(669 ratings)
This pre-workout is packed with a very high dose of L-Citrulline (4000mg) and other performance ingredients, making it significantly more effective for intense fitness and muscle gain goals.
80 Performance

Arginine Citrulline

MNP Michael's Naturopathic Programs
4.8
(196 ratings)
Offers significantly higher dosages of both L-Arginine (2250mg) and L-Citrulline (750mg) per serving, alongside Beet, making it considerably more potent for nitric oxide support and overall efficacy.