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Arginine & Citrulline 500 mg/250 mg

1 Capsule × 2/day · 120 servings · $0.13/serving

iHerbAmazon

Best for

Heart

Ingredients (2)

L-Arginine

50%

Dose/day

1000 mg

Target

2000–6000 mg

Form

—

L-Citrulline

17%

Dose/day

500 mg

Target

3000–6000 mg

Form

—

Other Ingredients (5)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Take it anytime

Take between meals — food blunts the rise in plasma arginine.

On an empty stomach
Split into 2 doses across the day

On the label

Take 1 capsule 2 times daily Store in a cool, dry, dark place after opening.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$15.65

$10$20

Cheaper than 65% of 64 arginine supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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