Amino Acid
L-Arginine (Blood Pressure)
Also known as: Arginine (BP)
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.
Every L-Arginine (Blood Pressure) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | Nootropics Depot AAKG 2 | 90 A | $0.33 |
| 2 | Nutricost Pre-Workout For Women Powder | 89 A | $0.73 |
| 3 | Nutricost Pre-Workout Complex | 89 A | $0.83 |
| 4 | Pure Encapsulations L-Arginine | 88 A | $0.55 |
| 5 | NOW Foods L-Arginine Powder | 88 A | $0.34 |
| 6 | Thorne L-Arginine Plus | 87 A | $1.25 |
| 7 | Nootropics Depot AAKG 2:1 Powder | 86 A- | $0.33 |
| 8 | Pure Encapsulations Nitric Oxide Support | 82 A- | $1.70 |
| 9 | Bluebonnet Nutrition L-ARGININE 1000 mg | 82 A- | $0.96 |
| 10 | Country Life L-Arginine 500 mg | 82 A- | $0.17 |
| 11 | Thorne L-Arginine - Sustained Release | 81 A- | $0.73 |
| 12 | NOW Foods Tri-Amino | 81 A- | $0.27 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much L-Arginine (Blood Pressure) should I take?
The typical range is 3-6g daily for BP. 4+ weeks for BP effects
When should I take L-Arginine (Blood Pressure)?
Divided doses. Optional.
Which form of L-Arginine (Blood Pressure) is best?
Powder — Cost-effective. Other forms in the catalog: Capsules.
Is L-Arginine (Blood Pressure) safe?
Commonly reported: GI upset, Nausea. Serious warnings: May trigger herpes outbreaks, Post-MI caution. Caution with kidney disease
Which L-Arginine (Blood Pressure) supplement scores highest?
Nootropics Depot AAKG 2, at 90/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
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.