Jarrow Formulas L-Carnitine 500 mg supplement bottle
Jarrow Formulas

L-Carnitine 500 mg

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
75
Product Score Fair
83
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

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

Absorption Rating

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

Fillers & Additives

  • Hydroxypropyl Methylcellulose
  • Water
  • Magnesium Stearate
  • Silicon Dioxide
  • Microcrystalline Cellulose
Efficacy Excellent

Dosage Analysis

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

Supplement Facts

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

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Water Safe

Dissolves and carries water-soluble ingredients.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

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
Jarrow Formulas

Founded 1977 · Los Angeles, California, USA · 138 products · jarrow.com/

Certifications

5 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

Transparency

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

Violation History

2 incidents
Recall Liquid L-Carnitine2018-01-15Source
Prop 65 Lead2017-09-07Source
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Frequently Asked Questions
Is Jarrow Formulas L-Carnitine 500 mg a good supplement?

Jarrow Formulas L-Carnitine 500 mg received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients with 50 servings per container. All 5 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Jarrow Formulas, holds a brand trust score of 83/100 with 5 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Usda Organic.

What are the ingredients in Jarrow Formulas L-Carnitine 500 mg?

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

Is Jarrow Formulas L-Carnitine 500 mg safe to take?

Jarrow Formulas L-Carnitine 500 mg has been analyzed for ingredient safety across all its components. All 5 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Jarrow Formulas a trustworthy supplement brand?

Jarrow Formulas receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1977 and headquartered in Los Angeles, California, USA, the company offers 138 products in their lineup. They hold 5 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Jarrow Formulas 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.