Best Naturals L-Arginine, 1 lb (454 g) supplement bottle
Best Naturals

L-Arginine, 1 lb (454 g)

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 1 brand certification checked · 4 retailers compared · Last updated: Mar 2026
100
Product Score Excellent
67
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Arginine HCL 4,600 mg *
Bioavailability Excellent

Absorption Rating

  • L-Arginine HCL Good
Other Ingredients Excellent

Fillers & Additives

  • None
Efficacy Excellent

Dosage Analysis

  • L-Arginine HCL 4,600 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Arginine HCL 4,600 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

None Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$24$21$19$16$14 Mar 12 $22.00$15.89
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Best Naturals

Founded 2012 · Piscataway, New Jersey, USA · 129 products · shopbestnaturals.com

Certifications

1 certification
Consumerlab Verified Source

Transparency

3 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source

Violation History

2 incidents
Prop 65 Lead and lead compounds2021-12-29Source
Lawsuit Falsely advertising krill oil supplements that allegedly contain no krill.2021Source
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Frequently Asked Questions
Is Best Naturals L-Arginine, 1 lb (454 g) a good supplement?

Best Naturals L-Arginine, 1 lb (454 g) received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 98 servings per container. Of the 1 inactive ingredients, 0 are rated safe and 0 are flagged for review. The manufacturer, Best Naturals, holds a brand trust score of 67/100 with 1 verified certifications including Consumerlab.

What are the ingredients in Best Naturals L-Arginine, 1 lb (454 g)?

Best Naturals L-Arginine, 1 lb (454 g) contains 1 active ingredients: L-Arginine HCL (4,600 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Best Naturals L-Arginine, 1 lb (454 g) safe to take?

Best Naturals L-Arginine, 1 lb (454 g) has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Best Naturals a trustworthy supplement brand?

Best Naturals receives a brand trust score of 67/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2012 and headquartered in Piscataway, New Jersey, USA, the company offers 129 products in their lineup. They hold 1 verified certifications including Consumerlab. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Best Naturals has 2 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.