Source Naturals Free Form L-Ornithine, 667 mg, 100 Capsules supplement bottle
Source Naturals

Free Form L-Ornithine, 667 mg, 100 Capsules

What We Researched
3 active ingredients analyzed · 3 inactive ingredients decoded · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
100
Product Score Excellent
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Ornithine (as L-ornithine HCI) 2 g
Bioavailability Excellent

Absorption Rating

  • L-Ornithine (as L-ornithine HCI) Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin (Capsule)
  • Colloidal Silicon Dioxide
  • Magnesium Stearate
Efficacy Excellent

Dosage Analysis

  • L-Ornithine (as L-ornithine HCI) 2 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 10
Protein 2 g 4%
L-Ornithine (as L-ornithine HCI) 2 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin (Capsule) Safe

It is used as a material for making capsules.

Colloidal Silicon Dioxide Generally_safe

It prevents clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$19$18$17$16$15 Mar 12 $17.49
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
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
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Frequently Asked Questions
Is Source Naturals Free Form L-Ornithine, 667 mg a good supplement?

Source Naturals Free Form L-Ornithine, 667 mg, 100 Capsules 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 3 active ingredients with 33 servings per container. Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals Free Form L-Ornithine, 667 mg?

Source Naturals Free Form L-Ornithine, 667 mg contains 3 active ingredients: Calories (10), Protein (2 g), L-Ornithine (as L-ornithine HCI) (2 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals Free Form L-Ornithine, 667 mg safe to take?

Source Naturals Free Form L-Ornithine, 667 mg, 100 Capsules 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 Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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.