BioStacks
Best Naturals

L-Citrulline 2000 mg

2 Tablets × 2/day · 60 servings · $0.42/serving

iHerbAmazon

Best for

Heart

Ingredients (1)

L-Citrulline

100%

Dose/day

4000 mg

Target

3000–6000 mg

Form

—

Other Ingredients (7)

ShellacCoating

Natural resin secreted by the lac bug, used as a coating and glazing agent for tablets and pills

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Magnesium StearateLubricant

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

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Dicalcium PhosphateBinder

Calcium and phosphorus compound used as binder

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

Timing doesn't matter for this one — taking it consistently does.

With or without food
Split into 2 doses across the day

On the label

As a dietary supplement, adults take two (2) tablets twice daily or as directed by a health care professional.

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

Price Check

$24.99

$20

Near the median of 40 citrulline 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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