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L-Arginine L-Citrulline Complex

Source Naturals
4.6
★ ★ ★ ★ ★
(4074 ratings)
Arginine 750 mg
Citrulline 250 mg
Product Image
Score78
A large supply and fair arginine value are useful, though the citrulline portion and labeled serving remain weak.
How scoring works
Quantity:240 Tablet(s) • (240 servings)
Goals:

Score 78

A large supply and fair arginine value are useful, though the citrulline portion and labeled serving remain weak.
How scoring works

Also available as

1 option
120 servings Citrulline 250 mg, Arginine 750 mg • 120 Tablet(s) • 120 servings $18.19 ($0.15 per serving)
$30.79($0.12 per serving)
Amazon
$ 30.79
iHerb
$ 30.79
Vitacost
$ 30.79
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Analysis

Each tablet supplies 750 mg of arginine hydrochloride and 250 mg of free-form L-citrulline. The combination is coherent for nitric-oxide production, with arginine carrying most of the dose.

Citrulline sits far below common exercise and circulation amounts. The immediate-release tablet provides no sustained exposure, and no purity or sourcing information adds confidence.

A 240-tablet bottle supports long-term use and keeps arginine cost reasonable. It suits people who want a large supply of modest servings and do not mind taking additional tablets when needed.

Who is it for
  • Adults wanting a large tablet supply
  • People using modest arginine amounts
  • Users willing to adjust beyond one tablet
Best for
  • Long-term basic supplementation
  • Arginine-led routines
  • Value-focused tablet users

Pros

  • Large package supports extended use
  • Clear amino-acid disclosure
  • Reasonable arginine cost efficiency

Cons

  • Citrulline amount is very low
  • Several tablets may be needed
  • No enhanced delivery or purity details

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

82 Highest 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 OverallScore64
C- Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyB+ Value

L-arginine hydrochloride provides a clearly identified form with a modest amount per tablet. L-citrulline complements the formula, but the immediate-release tablet does not offer prolonged delivery. Reaching larger performance-oriented amounts requires extra tablets, while the bottle remains reasonably economical for the amount of arginine supplied.

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Citrulline · 250 mg OverallScore52
B- Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyD- Value

The free-form L-citrulline is a well-defined active form, but its amount is far below a useful performance dose. The label clearly discloses the ingredient while providing no sourcing or purity credentials. Cost efficiency is limited because the low active amount raises the price per gram.

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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.
77 Performance

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 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

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 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.
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.
73 Value

Nitri Oxide Support

Pure Encapsulations
A substantial AAKG amount and vitamin C provide a coherent exercise-circulation base. Citrulline malate is underdosed with an undisclosed ratio, while the relatively costly serving weakens value. 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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