BioStacks
Jarrow Formulas

L-Carnitine 500 mg

1 Capsule · 50 servings

iHerbAmazon
Track this supplement · Get started free

What it does

Carnitine

Form not confirmedGrade —

Helps transport fats for normal energy production; extra carnitine does not reliably improve exercise performance.

Energy
Ask AI about this product

Ingredients (1)

Other ingredients

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Capsule ShellCapsule

Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.

Lab testing

How to take it

With food

On the label

Adults take 1 capsule 1 to 2 times per day on an empty stomach or as directed by your qualified healthcare professional

The label says to take it on an empty stomach. What's in this one sits better with food, and you give up little by taking it that way.

Price check

$13.03

$0.26 / serving

$10$20$50

Cheaper than 92% of 119 carnitine supplements

Similar products

Acetyl L-Carnitine 1000mg

Best Naturals

Acetyl L-Carnitine 1000mg

⚡ for Energy

100
L-Carnitine 1000 mg

GNC

L-Carnitine 1000 mg

⚡ for Energy

100
L-Carnitine 500 mg Tablets

Solgar

L-Carnitine 500 mg Tablets

⚡ for Energy

100
Acetyl L-Carnitine

Vital Nutrients

Acetyl L-Carnitine

⚡ for Energy

100
Acetyl-L-Carnitine 750 mg

NOW

Acetyl-L-Carnitine 750 mg

⚡ for Energy

97

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • Manifesto
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart

Free Tools

  • Interaction Checker
  • Dose Checker
  • Form Comparison

Field Guides

  • Magnesium for sleep
  • Reading labels
  • Interaction checker
  • Dose checker
  • Harmful ingredients
  • Proprietary blends
  • Stack building
  • Scan without barcode
  • All guides →
© 2026 BioStacks. All rights reserved. Not medical advice.