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L-Carnitine

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    Acetyl-L-Carnitine 500 mg 90 Caps by Klaire Labs/SFI Health

    Klaire Labs
    5+ in stock

    Acetyl-L-Carnitine by Klaire Labs is a dietary supplement designed to support healthy brain and nervous system function during the aging process. A...

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    Acetyl-L-Carnitine 500 mg 60 capsules by Thorne Research

    Thorne Research
    5+ in stock

    Formerly Carnityl Acetyl-L-Carnitine by Thorne Research is a professional and high quality health supplement which is designed as an ester form of ...

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    Acetyl L-Carnitine 500 mg 60 caps by Integrative Therapeutics

    Integrative Therapeutics
    5+ in stock

    Acetyl L-Carnitine 500 mg by Integrative Therapeutics is a dietary supplement designed to support healthy heart and cognitive function in addition ...

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    Acetyl-L-Carnitine 750 mg 60 caps by NutriDyn

    NutriDyn
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    NutriDyn's Acetyl-L-Carnitine is an amino acid that is involved in the metabolism of fatty acids and energy production. It is also important for th...

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    L-Carnitine 340 mg by Pure Encapsulations

    Pure Encapsulations
    5+ in stock

    The amino acid L-Carnitine that's stored at healthy levels in the brain, kidneys, liver, muscles and skeleton supports many normal physical process...

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    Acetyl-L-Carnitine 500 mg 60 capsules by Pure Encapsulations

    Pure Encapsulations
    5+ in stock

    Acetyl-L-Carnitine 500 mg is a dietary supplement that can help increase energy levels and promote mental acuity. This Pure Encapsulations product ...

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    N-Acetyl-L-Carnitine 500 mg 90 caps by Montiff

    Montiff
    5+ in stock

    N-Acetyl-L-Carnitine by Montiff provides acetyl-L-carnitine, the ester form of carnitine that readily reaches the brain. It supports acetylcholine ...

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    Acetyl L-Carnitine 500 mg by Douglas Labs

    Douglas Labs
    5+ in stock

    Acetyl L-Carnitine 500 mg by Douglas Labs is a health supplement particularly useful for those interested in reducing their weight. Regular consump...

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    CoQ10 L-Carnitine Fumarate 120 capsules by Pure Encapsulations

    Pure Encapsulations
    5+ in stock

    CoQ10 L-Carnitine Fumarate by Pure Encapsulations combines coenzyme Q10 with L-carnitine fumarate, a bioavailable form of carnitine that transports...

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    Liquid L-Carnitine CoQ10 16 fl oz by Dr.'s Advantage

    Dr.'s Advantage
    5+ in stock

    Dr.'s Advantage Liquid L-Carnitine CoQ10 delivers 1,000 mg of L-carnitine and 100 mg of CoQ10 per tablespoon in a natural orange-flavored liquid. I...

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    Acetyl L-Carnitine 500 mg by Jarrow Formulas

    Jarrow Formulas
    5+ in stock

    Acetyl L-Carnitine 500 mg by Jarrow Formulas provides an acetylated form of L-carnitine that can reach the brain. 500 mg acetyl-L-carnitine per cap...

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    Acetyl-L-Carnitine 500 mg 100 capsules by Protocol for Life Balance

    Protocol For Life Balance
    5+ in stock

    Acetyl-l-carnitine enables fatty acids to travel into cells. This allows them to be converted, stored and transformed into energy to fuel your cell...

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    Acetyl-L Carnitine 500 mg 50 capsules by NOW

    Now
    5+ in stock

    Acetyl-L Carnitine 500 mg 50 vcaps by NOW Laboratories contains a specialized form of l-carnitine. L-carnitine is a critical amino acid for human g...

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    L-Carnitine 500 60 caps by Progressive Labs

    Progressive Labs
    5+ in stock

    Progressive Labs has produced L-Carnitine 500 to promote optimal energy production by supplying a critical free form amino acid. Although the body ...

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    L-Carnitine 500 mg 60 capsules by BioGenesis

    BioGenesis
    5+ in stock

    The body uses carnitine to metabolize fatty acids, which is a process that converts fat into energy. Carnitine is created in the liver and kidneys ...

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    C2 Chromium Picolinate & L-Carnitine 120 veg caps by BioActive Nutrients

    BioActive Nutrients
    5+ in stock

    C2 by BioActive Nutrients combines chromium picolinate and L-carnitine in one vegetarian capsule. Chromium is an essential trace mineral involved i...

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    Acetyl L-Carnitine 500 mg 60 capsules by Vital Nutrients

    Vital Nutrients
    5+ in stock

    Vital Nutrients' Acetyl L-Carnitine 500 mg is a natural health product which is able to help with promoting overall healthy brain function. This he...

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    L-Carnitine 500 mg 60 capsules by Protocol for Life Balance

    Protocol For Life Balance
    5+ in stock

    L-Carnitine 500 mg by Protocol For Life Balance is a dietary supplement that boosts cellular energy by transporting fatty acids across the mitochon...

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    Carnitine 500 mg 60 caps by Vital Nutrients

    Vital Nutrients
    5+ in stock

    Carnitine 500 mg by Vital Nutrients is a professional health supplement which is designed to help with promoting cardiovascular health while offeri...

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    Acetyl-L-Carnitine 250 mg 60 capsules by Pure Encapsulations

    Pure Encapsulations
    5+ in stock

    Acetyl-L-Carnitine 250 mg by Pure Encapsulations is a supplement that helps support membrane stability in the body, improving overall cellular func...

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    Acetyl-L-Carnitine 500 mg 100 capsules by Allergy Research Group

    Allergy Research Group
    5+ in stock

    Acetyl L-carnitine, a substance closely related to the B vitamins, has a chemical structure similar to that of amino acids and is therefore typical...

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    Optimized Carnitine 60 capsules by Life Extension

    Life Extension
    5+ in stock

    Optimized Carnitine by Life Extension combines three forms of carnitine: acetyl-L-carnitine, acetyl-L-carnitine arginate, and glycine propionyl-L-c...

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    L-Carnitine Fumarate 340 mg 120 capsules by Pure Encapsulations

    Pure Encapsulations
    5+ in stock

    The L-Carnitine fumarate 340 mg by Pure Encapsulations is an all-natural supplement that supports healthy muscle function. This healthy supplement ...

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    L-Carnitine Tartrate 500 mg 60 caps by Klaire Labs/SFI Health

    Klaire Labs
    5+ in stock

    Klaire Labs' L-Carnitine Tartrate is designed to help the body meet its ongoing needs for energy production. L-Carnitine Tartrate features a stable...

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    About L-Carnitine

    L-carnitine is a nutrient that carries fatty acids into the mitochondria, where they are burned for energy. It supports healthy energy production, fat metabolism and exercise recovery.

    This collection includes L-carnitine, acetyl-L-carnitine (ALCAR) and carnitine combination formulas from Klaire Labs, Thorne, Pure Encapsulations, Integrative Therapeutics, NutriDyn and more.

    L-Carnitine vs Acetyl-L-Carnitine

    • L-carnitine: The standard form, chosen to support energy production, fat metabolism and exercise recovery.
    • Acetyl-L-carnitine (ALCAR): A form that reaches the brain, often chosen for memory, focus and mental energy.
    • Liquids: Easy to dose and convenient for larger amounts.
    • Combination formulas: Carnitine paired with CoQ10, chromium or alpha lipoic acid for broader energy and metabolism support.

    Carnitine is often part of an energy routine with CoQ10 and B vitamins, or a training routine with creatine.

    Frequently Asked Questions

    What is the difference between L-carnitine and acetyl-L-carnitine?

    Acetyl-L-carnitine reaches the brain more easily. L-carnitine is usually chosen for energy and exercise, while acetyl-L-carnitine is chosen for memory, focus and mental energy.

    How much L-carnitine should I take?

    Most products provide 500 to 2,000 mg per day. Follow the label or your practitioner's guidance.

    When is the best time to take L-carnitine?

    Many people take it in the morning or before exercise. Taking it with a meal can support comfort.

    Who might consider L-carnitine?

    People focused on energy, exercise and healthy aging often use it. Your body makes some carnitine, and it is also found in red meat, so people who eat little meat sometimes supplement.

    Related categories: Energy & Stamina | CoQ10 | Brain Health & Memory | Metabolism Support | Amino Acids

    *These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

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