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L-Arginine 1000 mg

21st Century

4.7
(9054 ratings)
Arginine 1000 mg
Product Image
Score 95.0

A highly effective and exceptionally cost-effective 1000mg L-Arginine supplement, a top choice for value.

Quantity: 100 Tablet(s)Servings size: 1 Tablet(s) (100 servings)
Selected goals:
Other goals:
Fitness
Heart Health
Muscle Gain
Cardiovascular Support

Score 95.0

A highly effective and exceptionally cost-effective 1000mg L-Arginine supplement, a top choice for value.

Analysis

This 21st Century L-Arginine product delivers a full 1000 mg of L-Arginine Hydrochloride per tablet, making it a potent and convenient option for daily supplementation. Its standout feature is its remarkably low price per serving (8 cents), which is highly competitive for a 1000mg dose. The immense number of positive reviews online (8659) attests to its popularity and effectiveness among a wide user base, confirming its status as a top-value choice.

Pros
  • Provides a substantial 1000 mg dose of L-Arginine HCl per tablet, ideal for effective supplementation.
  • Outstandingly low price per serving (8 cents) for a 1000mg product, offering superior value.
  • Very high review count (8659) indicates exceptional popularity and user satisfaction.
  • Single tablet serving for 1000mg is convenient for higher dose intake.
Cons
  • As a budget-friendly brand, some users may prefer more premium brands known for extensive third-party testing, though efficacy and safety are generally good.
  • The tablet form may be larger and harder to swallow for some compared to capsules.
Warnings
  • Consult a healthcare professional before use if you have a medical condition, especially low blood pressure, or are taking any medications.
  • Not recommended for individuals with specific conditions like active herpes infection, as L-Arginine may exacerbate it.
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$12.78($0.12 per serving)
iHerb
$ 12.78
Pure Formulas
$ 14.86
Amazon
$ 20.16
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Effectiveness for goals

Dosage, timing & forms

Safety & interactions

Ingredients

IngredientAmount per serving
L-Arginine
1000 mg
Gluten Free Adults 18–50
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Categories

This product is a top performer in the Arginine collection, combining a potent 1000mg dose with an exceptionally low price per serving. Its outstanding value and high user satisfaction make it an undeniable leading choice for consumers seeking effective and economical L-Arginine supplementation.

Goals

The 1000 mg L-Arginine dose is robust for continuously supporting nitric oxide synthesis, which is fundamental for maintaining healthy blood pressure, promoting arterial flexibility, and ensuring overall cardiovascular well-being. Its value makes it ideal for long-term daily intake.
The 1000 mg dose is highly effective for promoting nitric oxide production, which enhances blood flow and nutrient delivery to muscles during exercise, leading to improved pump, endurance, and faster recovery. Its excellent value encourages consistent use for maximum benefit.
By consistently delivering a substantial L-Arginine dose at an affordable cost, this product supports improved circulation and nutrient transport crucial for muscle recovery and growth. It acts as a strong supportive agent within a comprehensive muscle-building strategy.
98 Value

L-Arginine 500 mg

Swanson
4.7
(3442 ratings)
Offers 500 mg of L-Arginine at an incredibly low 4 cents per serving, which means even if you take two pills to get 1000mg, it's still cheaper per milligram than the 21st Century product, providing the best absolute value.
90 Value

L-Arginine 700 mg

NOW
4.8
(835 ratings)
Delivers a robust 700 mg dose per capsule at a very affordable 8 cents per serving, offering a strong balance between a higher dose per capsule and excellent affordability, making it a compelling value choice.
90 Value

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Though slightly higher in price per serving (7 cents), this product combines L-Arginine with L-Citrulline, offering a more effective and synergistic approach to NO support, delivering better value for comprehensive benefits.
92 Performance

N.O. Pro with Beet Root

ZHOU
4.2
(3540 ratings)
This product provides a multi-ingredient blend including L-Arginine, AAKG, L-Citrulline Malate, and Beet Root, offering a more comprehensive and synergistic approach to nitric oxide production for enhanced and sustained benefits.
90 Performance

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Combines L-Arginine with L-Citrulline, which is widely considered a more effective precursor for sustained nitric oxide levels due to citrulline's superior bioavailability, leading to more robust effects than standalone L-Arginine.
88 Performance

Sustained plus Immediate Release L-Arginine 500 mg

Doctor's Best
4.6
(1556 ratings)
Features an advanced sustained and immediate release formula, which ensures more consistent L-Arginine levels in the bloodstream, providing prolonged benefits for cardiovascular support and performance compared to standard immediate-release forms.
98 Budget

L-Arginine 500 mg

Swanson
4.7
(3442 ratings)
Offers 500 mg of L-Arginine per capsule at an even lower price per serving (4 cents vs 8 cents). Taking two capsules would provide the same 1000mg dose for less, albeit with less convenience.
90 Budget

L-Arginine 500 mg

Swanson Premium Brand
4.7
(3306 ratings)
Delivers 500 mg of L-Arginine at a price of 5 cents per serving, making it a very cost-effective choice, though requiring multiple capsules to match the 1000mg dose.
85 Budget

L-Arginine 500 mg

California Gold Nutrition
4.7
(9664 ratings)
Offers 500 mg of L-Arginine at a competitive price per serving (9 cents) and has a very high review count, providing a popular and affordable option for a slightly lower dose.
98 Value

L-Arginine 500 mg

Swanson
4.7
(3442 ratings)
Offers 500 mg of L-Arginine at an incredibly low 4 cents per serving, which means even if you take two pills to get 1000mg, it's still cheaper per milligram than the 21st Century product, providing the best absolute value.
90 Value

L-Arginine 700 mg

NOW
4.8
(835 ratings)
Delivers a robust 700 mg dose per capsule at a very affordable 8 cents per serving, offering a strong balance between a higher dose per capsule and excellent affordability, making it a compelling value choice.
90 Value

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Though slightly higher in price per serving (7 cents), this product combines L-Arginine with L-Citrulline, offering a more effective and synergistic approach to NO support, delivering better value for comprehensive benefits.
92 Performance

N.O. Pro with Beet Root

ZHOU
4.2
(3540 ratings)
This product provides a multi-ingredient blend including L-Arginine, AAKG, L-Citrulline Malate, and Beet Root, offering a more comprehensive and synergistic approach to nitric oxide production for enhanced and sustained benefits.
90 Performance

L-Arginine + L-Citrulline 750 mg

Nutricost
4.7
(1239 ratings)
Combines L-Arginine with L-Citrulline, which is widely considered a more effective precursor for sustained nitric oxide levels due to citrulline's superior bioavailability, leading to more robust effects than standalone L-Arginine.
88 Performance

Sustained plus Immediate Release L-Arginine 500 mg

Doctor's Best
4.6
(1556 ratings)
Features an advanced sustained and immediate release formula, which ensures more consistent L-Arginine levels in the bloodstream, providing prolonged benefits for cardiovascular support and performance compared to standard immediate-release forms.
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