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L-Arginine L-Citrulline Complex

Source Naturals
4.6
★ ★ ★ ★ ★
(4083 ratings)
Arginine 750 mg
Citrulline 250 mg
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Score78
A balanced arginine and citrulline tablet for maintaining nitric oxide levels and circulation, though the 250 mg citrulline dose is modest compared to performance-focused formulas.
How scoring works
Quantity:120 Tablet(s) • (120 servings)
Goals:

Score 78

A balanced arginine and citrulline tablet for maintaining nitric oxide levels and circulation, though the 250 mg citrulline dose is modest compared to performance-focused formulas.
How scoring works

Also available as

1 option
240 servings Citrulline 250 mg, Arginine 750 mg • 240 Tablet(s) • 240 servings $30.79 ($0.12 per serving)
$18.19($0.15 per serving)
iHerb
$ 18.19
Amazon
$ 18.19
Pure Formulas
$ 18.19
Vitacost
$ 18.19
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Analysis

One tablet combines 750 mg of arginine hydrochloride with 250 mg of L-citrulline. The pairing supports a single nitric-oxide pathway and is easy to understand from the label.

Arginine is moderate rather than strong at the listed serving, and the citrulline amount is too low for meaningful standalone support. No release technology, sourcing credential, or purity standard distinguishes the ingredients.

A one-tablet serving and favorable arginine cost are practical strengths. It works best for modest daily use, not as a complete performance formula at label directions.

Who is it for
  • Adults seeking a modest one-tablet amino-acid blend
  • People prioritizing arginine over citrulline
  • Users who value simple daily dosing
Best for
  • Basic circulation support
  • One-tablet convenience
  • Low-intensity amino-acid use

Pros

  • Clear individual amino-acid amounts
  • Moderate arginine serving
  • Convenient single tablet

Cons

  • Citrulline is severely underdosed
  • No sustained-release feature
  • No sourcing or purity standard

Warnings

  • Arginine and citrulline may add to nitrates, blood-pressure medicines, or PDE-5 inhibitors and cause dizziness or excessive blood-pressure lowering.
  • Arginine can trigger herpes simplex recurrences in some susceptible users.
  • Higher amino-acid intake may cause nausea, cramping, or diarrhea.

Nutrient quality

78 High impact

Specific amino-acid forms and a focused nitric-oxide purpose support basic quality. Modest arginine and very low citrulline sharply limit dose depth.

Ingredient transparency

81 Highest impact

Active quantities and amino-acid forms are clearly disclosed without a hidden blend. Missing full directions and non-active ingredients leave the label incomplete.

Customer satisfaction

71 High impact

The supplied average rating is strong and the rating volume is substantial. No specific experience details were provided to judge repeated complaints or purpose alignment.

Value for money

78 High impact

The formula provides fair value for its cost. It remains moderately competitive but does not clearly lead the category.

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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
Report overview
Arginine (L-Arginine Hydrochloride) · 750 mg OverallScore68
C- Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyB+ Value

The clearly identified L-arginine hydrochloride form provides a moderate dose in one tablet, but no special purity grade or release technology is stated. Its cost per gram is favorable for a standard arginine product. People using nitrates or blood-pressure medicines should be cautious because L-arginine may further lower blood pressure.

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Citrulline · 250 mg OverallScore44
B- Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyF Value

Free-form L-citrulline and clear dose disclosure support ingredient confidence. The amount per tablet is far below a typical performance-focused serving, so meaningful nitric oxide or exercise support is unlikely at the labeled serving. Value is also limited because the small active dose makes each gram relatively costly despite the modest package cost.

View ingredientView products
Loading alternative details
67 Performance

Pump-Ocalypse Blue Raz

Bucked Up
Glycerol, citrulline, arginine, and agmatine form a coherent stimulant-free pump formula, but several amounts are moderate rather than full strength. An opaque mushroom blend and low betaine amount weaken dose quality and disclosure. Compared with the original, its Arginine and Citrulline coverage and stronger formulation depth make it a better quality-focused match.
74 Performance

Wellness ImmuNitric

Source Naturals
A substantial arginine amount with modest citrulline and B-vitamin support creates a coherent vascular formula at favorable value. Duplicate folate entries reduce clarity, and the three-tablet serving may add to the effects of nitrates or blood-pressure medicines. Compared with the original, its Arginine and Citrulline coverage and stronger formulation depth make it a better quality-focused match.
78 Performance

Arginine & Citrulline 500 mg / 250 mg

NOW Sports
A large supply of clearly disclosed L-arginine and L-citrulline offers efficient routine value. Very low serving amounts mean targeted nitric-oxide or exercise use would require many capsules. Compared with the original, its Arginine and Citrulline coverage and stronger formulation depth make it a better quality-focused match.
79 Budget

L-Arginine + L-Citrulline 750 mg

Nutricost
A large supply of clearly separated L-arginine and L-citrulline provides economical but basic nitric-oxide support. Both amounts are too low for targeted performance use without taking multiple capsules. Compared with the original, its lower serving cost improves affordability while retaining Arginine and Citrulline support.
78 Budget

L-Arginine L-Citrulline Complex 1000 mg

Best Naturals
L-arginine hydrochloride and free-form citrulline provide a focused combination with good supply economy. The arginine amount is only moderate and the citrulline amount is far below targeted performance use. Compared with the original, its lower serving cost improves affordability while retaining Arginine and Citrulline support.
78 Budget

L-Arginine L-Citrulline Complex

Source Naturals
A large supply of focused arginine and citrulline offers reasonable routine value. The arginine amount is modest, the citrulline amount is far below targeted use, and arginine may add to blood-pressure-lowering medicines. Compared with the original, its lower serving cost improves affordability while retaining Arginine and Citrulline support.
73 Value

Wellness ImmuNitric

Source Naturals
A substantial arginine amount with modest citrulline and B-vitamin support creates a coherent vascular formula at reasonable value. Duplicate folate entries reduce label clarity, and the vasodilating combination may add to nitrates or blood-pressure medicines. Compared with the original, its Arginine and Citrulline coverage and balance of formula depth and serving cost provide better practical value.
77 Value

Arginine & Citrulline 500 mg/250 mg

NOW Sports
Clearly disclosed L-arginine and L-citrulline provide a focused nitric-oxide formula at a low serving cost. Both amounts are far below targeted performance ranges, so meaningful use would require many capsules. Compared with the original, its Arginine and Citrulline coverage and balance of formula depth and serving cost provide better practical value.
80 Value

Nitric Oxide Booster

Nutricost Performance
Three arginine forms provide a moderate combined amount and clear nitric-oxide focus at favorable value. Citrulline remains underdosed, and the undisclosed citrulline-malate ratio makes its active contribution uncertain. Compared with the original, its Arginine and Citrulline coverage and balance of formula depth and serving cost provide better practical value.
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