Amino Acid

L-Arginine (Blood Pressure)

Also known as: Arginine (BP)

Evidence

Nitric oxide precursor for vasodilation and blood pressure support.

Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.

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Primary uses

Blood pressure
Nitric oxide
Circulation
Erectile function

How it works

Nitric oxide precursor
Vasodilation
Endothelial support

Dosage

Typical range: 3-6g daily for BP
Timing: Divided doses
With food: Optional
Duration: 4+ weeks for BP effects
Special populations: Mild hypertension, circulation

Forms

Powder
Capsules

Safety

Common side effects

GI upset
Nausea

Contraindications

Active herpes
Recent heart attack

Products containing L-Arginine (Blood Pressure)

Top-scoring supplements in our catalog that list L-Arginine (Blood Pressure) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.

Evidence notes

NO precursor for vasodilation

Grade B: Some human trials support key claims; further confirmation needed.

Related in Amino Acid

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.