Buy Citrulline malate

Products that match the form and dose used in the studies. Umbral earns a commission on some purchases; the order never changes because of it.

Moderate

8 g citrulline malate (≈4.5 g L-citrulline at a true 2:1), acutely; 12 g has been used without clear added benefit

Ratings, prices and photos were read from Amazon on Sep 18, 2026. Amazon prices change; the current one is on the product page.

As an Amazon Associate, Umbral earns from qualifying purchases. Product data is provided by Amazon and may change; ratings and prices shown are Amazon’s, not Umbral’s. Recommendations are based on the evidence grade and the form used in trials, never on commission.

Nutricost Pure L-Citrulline Powder, 600 g

4.7(3,551)

$29.95

Base L-citrulline instead of citrulline malate, on purpose: 4.5 g of base is exactly what a true 2:1 malate at 8 g delivers, and here you know what you are getting.

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Amazon price on Sep 18, 2026.

Kaged L-Citrulline Powder, Unflavored, 100 Servings

4.7(422)

$15.99

Third-party tested and unflavoured. Most products labelled 'citrulline malate 2:1' actually test closer to 1.1:1, which halves the citrulline you thought you bought.

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Amazon price on Sep 18, 2026.

BulkSupplements.com L-Citrulline Powder

4.7(4,600)

$23.97

Four and a half thousand ratings and a published certificate of analysis per batch — the only real defence against the ratio problem above.

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Amazon price on Sep 18, 2026.

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What to look for

✓Citrulline malate 2:1 — verify the ratio on a certificate of analysis, since many products deliver 1.1:1 and roughly half the labelled citrulline
✓8 g citrulline malate (≈4.5 g L-citrulline at a true 2:1), acutely; 12 g has been used without clear added benefit
✓Third-party tested (USP, NSF, Informed Sport)

What to avoid

✕Proprietary blends that hide the dose per ingredient
✕Unstandardised extracts with no active-compound percentage

Safety notes

· Stomach discomfort and nausea at 8+ g — reported in roughly 10–15% of subjects across trials
· Mild blood-pressure lowering via nitric oxide; caution if hypotensive
· No serious adverse events reported, but no long-term safety data beyond acute and short-term use exist

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As an Amazon Associate, Umbral earns from qualifying purchases. Product data comes from Amazon and may change; ratings and prices are Amazon's, not Umbral's. Suggestions are based on the science and the form used in studies, never on commission.

Umbral is a wellness product, not a medical device. It does not diagnose, treat, cure or prevent any disease. Supplement information is educational; talk to a clinician before starting anything, especially if you are pregnant, under 18, managing a condition or taking medication.

These statements have not been evaluated by the Food and Drug Administration.