Source Naturals L-Citrulline · 2 g l-citrulline

Sports nutrition · Source Naturals

L-Citrulline

Why Source Naturals l-citrulline?

2 g l-citrulline per serving
Hypoallergenic: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

From the label’s panel and printed marks — not its marketing.

Supplement Facts

Serving size 4 Capsule(s)

L-Citrulline2 g

Full panel ↓

Sold as food, not medicine — no regulator checked that it works

2gL-Citrulline

Per serving · 4 Capsule(s)

At a glance

From the label as printed · NIH DSLD

What it is

Protein powder · Capsule

Per serving

2 g l-citrulline

15 servings per container

How to take it

4 capsules three times daily.

One serving: 4 Capsule(s)

Label warning

Warning: Consult your physician prior to using this product if you are pregnant, may become pregnant, breastfeeding, or if you are taking prescription medications for conditions such as heart disease or erectile dysfunction.

All warnings ↓

Independent testing

No third-party testing mark on the label

Marks like NSF Certified for Sport or Informed Sport mean batches are tested for banned substances. Their absence does not mean a product is contaminated — only that nobody independent has said it isn’t.

Good to know

Sports nutrition — claims are the manufacturer’s
Hypoallergenic: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Adult (18 - 50 Years)

Supplement Facts

Serving size 4 Capsule(s)

Servings per container 15

Amount per serving		% DV
L-Citrulline	2 g	†

† Daily Value not established.

Other ingredients: Gelatin, Microcrystalline Cellulose, Silica, Magnesium Stearate

Transcribed from the label by the NIH Office of Dietary Supplements. What a label says is not independently verified. See the original label

How to take it

Suggested Use: 4 capsules three times daily.

The manufacturer’s directions, from the label.

Warnings on the label

Warning: Consult your physician prior to using this product if you are pregnant, may become pregnant, breastfeeding, or if you are taking prescription medications for conditions such as heart disease or erectile dysfunction.
Not recommended for use following a heart attack.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.

What no one has checked

Contents are declared by the manufacturer and are not verified by a regulator. Independent testing has repeatedly found amounts that differ from the label, and products that contain substances banned in sport. Third-party certification, where a product has it, is shown on this page.

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Details

Brand	Source Naturals
UPC	0 21078 02004 2
NIH label ID	73748
Label recorded	2017-05-24

Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional