10 Best L Carnitines 2025 in the US

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1 Our Pick
iSatori L-Carnitine LS3 3000, Stimulant Free Liquid Pre Workout, Bombsicle Flavor
  • Triple-Blend L-Carnitine Complex: 2000mg L-Carnitine, 500mg Acetyl L-Carnitine, 500mg L-Tartrate.
  • Non-Stimulant Energy Booster: Ideal pre-workout shot for energy and enhanced workouts.
  • Delicious Bombsicle Flavor: Makes fueling workouts both enjoyable and effective.
  • High-Quality Ingredients: Calorie-Free, Sugar-Free, Gluten-Free, and Keto-Friendly.
  • Trusted by Professionals: Popular among athletes and fitness experts since 2001.
  • Available in 3 Colors: Offers variety for personal preference and choice.
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2
Nutricost Acetyl L-Carnitine 500mg – 180 Non-GMO Gluten Free Capsules
  • Each capsule delivers a potent 500mg of Acetyl L-Carnitine (ALCAR).
  • Includes a generous supply with 180 capsules for long-term use.
  • Convenient dosing with a recommended intake of one capsule daily.
  • Manufactured in a NSF certified facility compliant with GMP standards.
  • Undergoes independent testing in third-party ISO accredited laboratories.
  • Non-GMO and gluten-free, suitable for various dietary preferences.
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3
Nutricost L-Carnitine Tartrate 1000mg, 120 Capsules – 500mg Per Capsule
  • High L-Carnitine content: 500mg per capsule, 1000mg per serving for optimal dosage.
  • Ample supply: Each bottle contains 60 servings for long-lasting use.
  • Free from harmful additives: No unnecessary fillers or harmful substances included.
  • Non-GMO and Gluten Free: Safe for individuals with dietary restrictions and preferences.
  • 3rd Party Tested: Ensures the product’s quality and purity through rigorous testing.
  • Available in multiple sizes: Choose from 4 different sizes to fit your needs.
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4
BulkSupplements Acetyl L-Carnitine Powder 1500mg, Gluten Free, 1kg (2.2 lbs)
  • Supports general health with essential nutrients for well-being.
  • Versatile supplement that fits various dietary preferences.
  • Unflavored and allergen-free, easily mixes with other products.
  • Undergoes third-party testing for quality and transparency.
  • Manufactured in a cGMP compliant facility for high standards.
  • Available in multiple sizes to cater to different user needs.
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5
PROSUPPS L-Carnitine Liquid Shots for Performance & Recovery – No Sugar, No Carbs
  • Fast-acting L-Carnitine liquid for energy and muscle performance support.
  • Stimulant-free formula enhances mental clarity and muscle preservation.
  • Designed to reduce muscle soreness and lactic acid for quicker recovery.
  • Boosts endurance and power output without sugars or carbohydrates.
  • Manufactured in the USA under strict FDA guidelines for quality.
  • Available in 8 delicious flavors, offering 31 servings per bottle.
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6
Acetyl L-Carnitine 1,500 mg for Energy, Focus, and Sports Nutrition – 100 Capsules
  • High potency formula with 1500 mg per serving, no fillers or binders.
  • Easy-to-take veggie capsules, convenient for daily use.
  • Manufactured in an FDA-registered facility, GMP compliant.
  • Third-party tested for purity and assured quality assurance.
  • Supports energy production and enhances athletic performance.
  • Promotes improved memory and focus for better cognitive function.
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7
BulkSupplements L-Carnitine Powder – 1000mg Energy Support Supplement
  • Provides sustained energy for long days and vigorous activities.
  • Enhances brain and cognitive health with daily intake for better focus.
  • Free from gluten, dairy, soy, and sugar for those with dietary restrictions.
  • Convenient powder form that can be easily added to any beverage.
  • Made from high-quality ingredients and undergoes third-party testing.
  • Available in a 1kg package, offering great value and multiple servings.
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8
NOW Foods L-Carnitine 1,000 mg – Amino Acid Fitness Support – 100 Tablets
  • Supports fitness with pure, clinically tested L-Carnitine tablets.
  • Boosts cellular energy by facilitating fatty acid transfer.
  • Non-GMO, Kosher, soy-free, and vegan-friendly certifications.
  • Manufactured under GMP quality assurance standards.
  • Family-owned company, packaging in the USA since 1968.
  • Available in three sizes to suit individual needs.
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9
NOW Foods L-Carnitine 500mg Supplements, 180 Veg Capsules for Fitness
  • Supports fitness with 500 mg of L-Carnitine per veggie capsule.
  • Boosts cellular energy by facilitating fatty acid transfer.
  • Certified Non-GMO, Kosher, and Vegan/Vegetarian friendly.
  • Manufactured with GMP Quality Assurance standards.
  • Product is made in the USA by a family-owned company since 1968.
  • Available in two sizes to fit different consumer needs.
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10
NOW Foods Acetyl-L Carnitine 500 mg, Veg Capsules for Brain Function, 200 Count
  • Supports fatty acid transport into mitochondria for energy production.
  • Boosts cellular energy and supports neurotransmitter activity.
  • Certified Kosher, Non-GMO, and follows GMP standards.
  • Manufactured under NPA A-rated GMP for quality and stability.
  • Family owned, USA-packaged since 1968 for reliability.
  • Available in four different sizes for varied needs.
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