Source Naturals L-Carnitine 500 mg supplement bottle
Source Naturals

L-Carnitine 500 mg

What We Researched
1 active ingredient analyzed · 4 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
100
Product Score Excellent
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Carnitine (as L-Carnitine L-Tartrate) 500 mg
Bioavailability Excellent

Absorption Rating

  • L-Carnitine (as L-Carnitine L-Tartrate) Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Magnesium Stearate
  • Maltodextrin
  • Silica
Efficacy Excellent

Dosage Analysis

  • L-Carnitine (as L-Carnitine L-Tartrate) 500 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Carnitine (as L-Carnitine L-Tartrate) 500 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

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
Related Supplements
Frequently Asked Questions
Is Source Naturals L-Carnitine 500 mg a good supplement?

Source Naturals L-Carnitine 500 mg 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 Of the 4 inactive ingredients, 3 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 L-Carnitine 500 mg?

Source Naturals L-Carnitine 500 mg contains 1 active ingredients: L-Carnitine (as L-Carnitine L-Tartrate) (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals L-Carnitine 500 mg safe to take?

Source Naturals L-Carnitine 500 mg 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.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

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.