L-Arginine 500 mg
Natural Factors
L-Arginine 500 mg
4.7
★ ★ ★ ★ ★
(3193 ratings)
Arginine 1000 mg
Score 80
A reliable and popular 1000mg L-Arginine supplement from a trusted brand, offering good value.
Quantity: 180 Capsule(s) • (90 servings)
Goals: flag Cardiovascular Support flag Fitness flag Muscle Gain flag Energy
leaderboard Score 80
A reliable and popular 1000mg L-Arginine supplement from a trusted brand, offering good value.
insights Analysis
This Natural Factors L-Arginine product provides 1000mg of L-Arginine Hydrochloride per serving, delivered in a convenient capsule form. It is a cost-effective option for those seeking a standard dose of L-Arginine for cardiovascular support, fitness, or muscle gain. The substantial number of positive online reviews reinforces its reputation as a reliable and effective supplement, making it a strong contender in the L-Arginine market.
- Delivers 1000 mg of L-Arginine HCl per serving, a clinically relevant dose for many benefits.
- Favorable price per serving (18 cents) for a 1000mg dosage.
- High review count (3140) suggests widespread user satisfaction and trust in the product.
- The L-Arginine Hydrochloride form might be less bioavailable for some individuals compared to L-Citrulline.
- Serving size is two capsules to reach 1000mg, which might be less convenient than a single 1000mg tablet.
- As with other L-Arginine supplements, individuals with hypotension or taking medications for blood pressure should consult a healthcare professional.
- Monitor for potential gastrointestinal upset, especially when starting supplementation.
$16.77($0.18 per serving)
 iHerb | $ 16.77 | |
 Vitacost | $ 16.77 | |
 Amazon | $ 16.77 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
L-Arginine | 1000 mg |
Categories
Arginine 80
This product stands out in the Arginine collection due to its effective 1000mg dose per serving combined with a competitive price point and high user satisfaction. It offers a reliable and well-received option for consumers seeking the benefits of L-Arginine.
Goals
L-Arginine is a direct precursor to nitric oxide, which is vital for relaxing blood vessels and promoting healthy circulation. The 1000mg dosage is effective in supporting vascular health and maintaining healthy blood pressure levels within a normal range.
The 1000 mg dose supports increased nitric oxide production, which can enhance blood flow and nutrient delivery to muscles during workouts, contributing to improved endurance and pump. This dosage is a good starting point for fitness enthusiasts looking for vasodilation benefits.
By improving circulation, L-Arginine can facilitate better nutrient transport to muscle cells, potentially aiding recovery and indirectly supporting muscle growth. However, it's a complementary supplement for muscle gain rather than a primary anabolic agent itself, often best combined with other muscle-building compounds.
95 Value 
L-Arginine 1000 mg
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4.7
★★★★★
(9054 ratings)
Delivers the same 1000 mg L-Arginine HCl dose per serving at less than half the price per serving (8 cents vs 18 cents), offering superior value for an identical primary ingredient profile.
98 Value 
L-Arginine 500 mg
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4.7
★★★★★
(3442 ratings)
With a price per serving of just 4 cents for 500mg, this product offers unparalleled cost-effectiveness for bulk L-Arginine intake, making it an excellent value choice if dosing flexibility is acceptable.
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L-Arginine 700 mg
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(835 ratings)
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(3540 ratings)
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L-Arginine + L-Citrulline 750 mg
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(1239 ratings)
Combines 500mg L-Arginine with 250mg L-Citrulline, which is often considered more effective for sustaining nitric oxide levels due to citrulline's better bioavailability and conversion to arginine in the body.
88 Performance 
Arginine & Citrulline 500 mg / 250 mg
NOW Sports
4.7
★★★★★
(4240 ratings)
Offers a beneficial combination of L-Arginine and L-Citrulline, which work synergistically to support nitric oxide synthesis, making it potentially more effective for cardiovascular and performance goals than standalone L-Arginine.
95 Budget
L-Arginine 1000 mg
21st Century
4.7
★★★★★
(9054 ratings)
Offers an equivalent 1000 mg L-Arginine HCl dose at a significantly lower price per serving (8 cents vs 18 cents), making it a more budget-friendly option while maintaining efficacy.
98 Budget
L-Arginine 500 mg
Swanson
4.7
★★★★★
(3442 ratings)
Delivers 500 mg of L-Arginine per capsule at an exceptionally low price per serving (4 cents). Taking two capsules would provide 1000mg for significantly less cost than the Natural Factors product.
90 Budget
L-Arginine 700 mg
NOW
4.8
★★★★★
(835 ratings)
Provides 700 mg of L-Arginine per capsule at a competitive 8 cents per serving, offering a good balance between dosage and cost, and allowing for flexible dosing.
95 Value
L-Arginine 1000 mg
21st Century
4.7
★★★★★
(9054 ratings)
Delivers the same 1000 mg L-Arginine HCl dose per serving at less than half the price per serving (8 cents vs 18 cents), offering superior value for an identical primary ingredient profile.
98 Value
L-Arginine 500 mg
Swanson
4.7
★★★★★
(3442 ratings)
With a price per serving of just 4 cents for 500mg, this product offers unparalleled cost-effectiveness for bulk L-Arginine intake, making it an excellent value choice if dosing flexibility is acceptable.
90 Value
L-Arginine 700 mg
NOW
4.8
★★★★★
(835 ratings)
Provides a good 700 mg dose at a very economical price per serving (8 cents), presenting a strong value proposition for those looking for a slightly higher dose than 500mg without a significant price increase.
92 Performance
N.O. Pro with Beet Root
ZHOU
4.2
★★★★★
(3540 ratings)
Features a multi-ingredient blend including L-Arginine HCl, AAKG, L-Citrulline Malate, and Beet Root, which provides a more robust and synergistic approach to nitric oxide production compared to single-ingredient L-Arginine.
90 Performance
L-Arginine + L-Citrulline 750 mg
Nutricost
4.7
★★★★★
(1239 ratings)
Combines 500mg L-Arginine with 250mg L-Citrulline, which is often considered more effective for sustaining nitric oxide levels due to citrulline's better bioavailability and conversion to arginine in the body.
88 Performance
Arginine & Citrulline 500 mg / 250 mg
NOW Sports
4.7
★★★★★
(4240 ratings)
Offers a beneficial combination of L-Arginine and L-Citrulline, which work synergistically to support nitric oxide synthesis, making it potentially more effective for cardiovascular and performance goals than standalone L-Arginine.