L-Carnitine

  • Naturally occurring amino acid found in meat and dairy products
  • Conditionally essential AA means it can be produced as long as 2 other amino acids are present
  • Responsible for production of cellular energy
  • Increase the body’s carnitine stores, especially the carnitine levels in muscles
  • Reduced muscle soreness
  • Quicker recovery
  • Increased nitric oxide production.

Best L-Carnitine

#1 Real Supplements Rated Best in 2020
Extra Strength L-Carnitine - 200 Capsules - 1000mg Per Serving - Boost Your Metabolism and Increase Performance
  • ENERGY & FOCUS: L-Carnitine plays a crucial role in the production of energy by transporting fatty acids into your cells’ mitochondria. The mitochondria act as engines within your cells, burning these fats to create usable energy.
  • COGNITIVE FUNCTION: L-Carnitine is known to help Reduce Cognitive Fatigue. It enhances mental focus and alertness by increasing memory related functions
  • ANTI-OXIDANT & CARDIOVASCULAR HEALTH: Burns Transports Fatty Acids to support your Cardiovascular Energy Levels. It can support in increase oxygen supply to the muscles
  • EXTRA STRONG CAPSULE: Dr. Martin’s provides a massive 200 Capsule with each capsule size of 500mg each. A Powerful Formula with over a 2 month supply to get you going and boost your body!
  • TRUSTED - Buy NOW with Complete Confidence that Dr Martin's Nutrition L Carnitine will boost your overall health - Click Add to Cart Now!
#2 Real Supplements Rated Best in 2020
NOW Supplements, L-Carnitine 1,000 mg, Purest Form, Amino Acid, Fitness Support*, 100 Tablets
2,058 Reviews
NOW Supplements, L-Carnitine 1,000 mg, Purest Form, Amino Acid, Fitness Support*, 100 Tablets
  • OFFERS FITNESS SUPPORT*: NOW L-Carnitine 1,000 mg tablets are the purest form, clinically tested, and vegetarian (non-animal sourced).
  • BOOSTS CELLULAR ENERGY* AND TRANSPORTS FATTY ACIDS*: L-Carnitine is a non-essential amino acid that helps to maintain overall good health by facilitating the transfer of fatty acid groups into the mitochondrial membrane for cellular energy production.*
  • CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Soy Free, Vegan/Vegetarian
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
#3 Real Supplements Rated Best in 2020
Acetyl L-Carnitine 1,500 mg High Potency Supports Natural Energy Production, Supports Memory/Focus - 100 Veggie Capsules
3,710 Reviews
Acetyl L-Carnitine 1,500 mg High Potency Supports Natural Energy Production, Supports Memory/Focus - 100 Veggie Capsules
  • ✔️SUPERIOR POTENCY 1500 MG: our Acetyl L-Carnitine delivers 1500 mg per serving with 100 vegan capsules making it the most potent formula available on the market.
  • ✔️ACETYL L-CARNITINE: Made with 100% pure Acetyl L-Carnitine without the use fillers or binders.
  • ✔️SUPERIOR QUALITY: We take pride in providing you 100% pure Acetyl L-Carnitine which does NOT CONTAIN fillers, magnesium stearate, dioxides, preservatives, gluten, soy, sugar, yeast, starch, non-gmo
  • Manufactured in a FDA registered facility in accordance with Good Manufacturing Practices (GMP)
  • 100% SATISFACTION GUARANTEE: Feel results or your money back, no questions asked!
#4 Real Supplements Rated Best in 2020
ProSupps L-Carnitine 3000 Stimulant Free Liquid Shots for Men and Women - Metabolic Energizer and Fat Burner Workout Drink for Performance and Muscle Recovery - Weight Loss Drinks (Berry)
  • ENERGY AND PERFORMANCE: Our premium L Carnitine 3000 fast-acting formula includes amino acids to support your muscles while increasing your energy levels during and after high intensity exercise or endurance training workouts. These workout shots also helps support a healthy environment for lean muscle growth and maintenance, enhances mental clarity and also promotes exercise recovery contributing to a leaner physique and a variety of other health benefits.
  • STIMULANT FREE FAT BURNER: L-Carnitine is a non-essential amino acid that assists with the transport of long-chain fatty acids into cells and helps them be utilized as energy. Our L-Carnitine metabolic enhancer shots naturally support fat loss and aid in muscle preservation during training making it a powerful workout supplement for men and women. Enjoy a boost of clean energy with no sugar and no carbs.
  • PROMOTES MUSCLE RECOVERY: Our liquid carnitine helps in reducing muscle soreness and muscle damage after exercise or workout. This stim free liquid shots also helps prolong training endurance, delay onset of exercise induced fatigue, increase power output and recovery rate to increase the work capacity of your skeletal muscle.
  • 7 DELICIOUS FLAVORS: ProSupps L Carnitine drink was formulated with world-class flavors to ensure it can satisfy every palate. Indulge in Berry, Blue Razz, Green Apple, Orange Burst, Sweet-N-Tart, Cherry Popsicle and Vanilla. No artificial flavors.
  • FOR PRE AND POST WORKOUTS: Our ProSupps L Carnitine shots can be used as a pre-workout supplement booster to help gain energy from fat instead of muscle. Use as a post-workout recovery drink, L-Carnitine weight loss drinks support the body by preventing lactic acid from accumulating in your muscles, which means you can workout longer and recover faster.
Sale#5 Real Supplements Rated Best in 2020
Nature's Bounty® L-Carnitine 500 mg, 30 Tablets
1,008 Reviews
Nature's Bounty® L-Carnitine 500 mg, 30 Tablets
  • Involved with heart health.*
  • Supports energy metabolism.*
  • Assists in fat breakdown of food being used for energy.*
  • These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
#6 Real Supplements Rated Best in 2020
Super Strength L-Carnitine 1000mg Servings Plus Calcium for Boosted Metabolism and Improved Muscle Gain - Arazo Nutrition
  • Calcium enhanced super formula; the extra 330mg of Calcium per serving greatly boosts metabolic rate, muscle strength, and bone health; added Calcium boosts results when combined with L-Carnitine
  • Supports athletic performance and stamina; faster muscle recovery, delay exhaustion
  • Burns fat to help lose weight; promotes muscle growth and fat loss during workouts
  • Healthy heart; transports fatty acids to support your cardiovascular energy levels
  • Reliable; made in a GMP certified facility in America and third party safety tested for purity; trusted for ingredient safety, nutritional value and label accuracy
Sale#7 Real Supplements Rated Best in 2020
Now Foods L-Carnitine 500 mg 180 Capsules
491 Reviews
Now Foods L-Carnitine 500 mg 180 Capsules
  • OFFERS FITNESS SUPPORT*: NOW L-Carnitine 500 mg veggie capsules are the purest form, clinically tested, and vegetarian (non-animal sourced).
  • BOOSTS CELLULAR ENERGY* AND TRANSPORTS FATTY ACIDS*: L-Carnitine is a non-essential amino acid that helps to maintain overall good health by facilitating the transfer of fatty acid groups into the mitochondrial membrane for cellular energy production.*
  • CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Soy Free, Vegan/Vegetarian
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
Sale#8 Real Supplements Rated Best in 2020
Acetyl L-Carnitine 1500 mg 200 Capsules | ALCAR | Non-GMO, Gluten Free | by Horbaach
1,197 Reviews
Acetyl L-Carnitine 1500 mg 200 Capsules | ALCAR | Non-GMO, Gluten Free | by Horbaach
  • ENERGIZE YOUR ROUTINE: Acetyl L-Carnitine is important for converting fat into cellular energy*
  • MAXIMUM STRENGTH ACETYL CARNITINE: 1500 MG Free-Form Capsules for maximum absorption!
  • COGNITIVE SUPPORT: This Amino Acid supports healthy Brain and Neurotransmitter function*
  • HORBAACH MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • NATURALLY FREE OF: Gluten, Wheat, Yeast, Milk, Lactose, Soy, Artificial Color & Flavoring & NON GMO
#9 Real Supplements Rated Best in 2020
NOW Supplements, L-Carnitine 500mg, Purest Form, Amino Acid, Fitness Support*, 60 Veg Capsules
554 Reviews
NOW Supplements, L-Carnitine 500mg, Purest Form, Amino Acid, Fitness Support*, 60 Veg Capsules
  • OFFERS FITNESS SUPPORT*: NOW L-Carnitine 500 mg veggie capsules are the purest form, clinically tested, and vegetarian (non-animal sourced).
  • BOOSTS CELLULAR ENERGY* AND TRANSPORTS FATTY ACIDS*: L-Carnitine is a non-essential amino acid that helps to maintain overall good health by facilitating the transfer of fatty acid groups into the mitochondrial membrane for cellular energy production.*
  • CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Soy Free, Vegan/Vegetarian
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
#10 Real Supplements Rated Best in 2020
Nutricost L-Carnitine Tartrate 500mg, 240 Capsules - 1000mg Per Serving
590 Reviews
Nutricost L-Carnitine Tartrate 500mg, 240 Capsules - 1000mg Per Serving
  • 240 Capules, Each With 500mg of L-Carnitine Tartrate
  • 1000mg Per Serving & 120 Servings Per Bottle
  • No Harmful Additives
  • Non-GMO and Gluten Free
  • Manufactured In a GMP Compliant, FDA Registered Facility
#11 Real Supplements Rated Best in 2020
Pure Encapsulations - L-Carnitine - Hypoallergenic Supplement for Cardiovascular and Endurance Support - 120 Capsules
95 Reviews
Pure Encapsulations - L-Carnitine - Hypoallergenic Supplement for Cardiovascular and Endurance Support - 120 Capsules
  • Amino Acid Support: l-Carnitine is an amino acid found abundantly in skeletal and heart muscle. It functions primarily to support fat utilization, and also acts as a carrier of fatty acids into the mitochondria, where they are oxidized and converted to energy.*
  • Cardiovascular Health: l-Carnitine-l-tartrate is a highly stabilized form of l-carnitine supporting cardiovascular health.*
  • Physical Recovery: A recent placebo-controlled clinical study conducted at Ball State University in Indiana has found that l-carnitine-l-tartrate supplementation helps physical recovery from high intensity exercise.*
  • Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity.
  • Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.
#12 Real Supplements Rated Best in 2020
BulkSupplements.com L-Carnitine Powder - Fat Burner for Men - Fat Burners for Women - Amino Acids Supplement - Safe Pre Workout (250 Grams - 8.8 oz)
1,297 Reviews
BulkSupplements.com L-Carnitine Powder - Fat Burner for Men - Fat Burners for Women - Amino Acids Supplement - Safe Pre Workout (250 Grams - 8.8 oz)
  • BOOSTS ENERGY* - L-Carnitine is a naturally occurring amino acid that helps convert fat into energy, helping you to train harder and longer.*
  • FAT BURNER - L-Carnitine supports healthy weight loss by converting fat into fuel to help you lose weight faster.*
  • EXERCISE PERFORMANCE - L-Carnitine may support exercise performance by improving muscle function and recovery.*
  • EXERCISE RECOVERY - L-Carnitine aids in the recovery process after exercise by supporting the replenishment of glycogen stores in muscles.*
  • OVERALL HEALTH - L-Carnitine contributes to overall health & wellness*
#13 Real Supplements Rated Best in 2020
NOW Supplements, Acetyl-L Carnitine 500 mg, Amino Acid, Brain And Nerve Cell Function*, 200 Veg Capsules
  • TRANSPORTS FATTY ACIDS: Acetyl-L-Carnitine (ALC) is a modified amino acid that supports cellular energy production by assisting in the transport of fat into the mitochondria where it is converted into ATP (cellular fuel).
  • BOOSTS CELLULAR ENERGY: ALC is a highly bioavailable form of carnitine that can cross the blood-brain barrier, where it helps to manage typical oxidative stress, supports mitochondrial function, and helps to maintain normal neurotransmitter activity.
  • CLASSIFICATIONS/CERTIFICATIONS: Kosher, Non-GMO
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
#14 Real Supplements Rated Best in 2020
Doctor's Best Best L-Carnitine Fumarate Featuring Sigma Tau Carnitine (855 Mg) Vegetable Capsules, 180-Count
138 Reviews
Doctor's Best Best L-Carnitine Fumarate Featuring Sigma Tau Carnitine (855 Mg) Vegetable Capsules, 180-Count
  • L-carnitine is a nutrient that promotes energy production in cells by transporting fatty acids into the mitochondrion
  • L-carnitine helps the body efficiently metabolize fat
  • Fumarate serves as an intermediate in the krebs cycle, a key energy-producing process that takes place in the mitochondrion
  • It is GMO-free, pesticide-free and bse safe
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
#15 Real Supplements Rated Best in 2020
Thorne Research - L-Carnitine - Amino Acid Supplement to Support Fat Metabolism and Energy Production - 60 Capsules
  • Helps convert fat to energy
  • Supports healthy levels of cholesterol and triglycerides
  • Promotes healthy sperm count and sperm motility
  • Thorne products contain ingredients from the purest sources worldwide. Flavors, colors, preservatives, and sweeteners are derived from natural sources. Our products never contain gluten, Genetically Modified Organisms (known as GMOs), artificial preservatives, stearates, wheat, rye, barley, eggs, or nuts. This product does not contain dairy, soy, corn, yeast, sugar, or magnesium stearate.
  • Thorne's commitment to integrity and science-backed products has helped us earn the trust of thousands of health-care professionals, U.S. National Teams, the Mayo Clinic, and families around the world.
#16 Real Supplements Rated Best in 2020
NOW Supplements, L-Carnitine 250 mg, Purest Form, Amino Acid, Fitness Support*, 60 Veg Capsules
350 Reviews
NOW Supplements, L-Carnitine 250 mg, Purest Form, Amino Acid, Fitness Support*, 60 Veg Capsules
  • PUREST FORM, CLINICALLY TESTED: NOW L-Carnitine is the purest form, clinically tested, and vegetarian (non-animal sourced). Offers fitness support!* In 250 mg capsules
  • BOOSTS CELLULAR ENERGY* AND TRANSPORTS FATTY ACIDS*: L-Carnitine is a non-essential amino acid that helps to maintain overall good health by facilitating the transfer of fatty acid groups into the mitochondrial membrane for cellular energy production.*
  • CLASSIFICATIONS/CERTIFICATIONS: Quality GMP Assured, Non-GMO, Kosher, Vegan/Vegetarian, Soy Free
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
#17 Real Supplements Rated Best in 2020
Evlution Nutrition L-Carnitine500, 500 mg of Pure L Carnitine in Each Serving, Stimulant-Free, Capsules (120 Servings)
1,162 Reviews
Evlution Nutrition L-Carnitine500, 500 mg of Pure L Carnitine in Each Serving, Stimulant-Free, Capsules (120 Servings)
  • Premium L-Carnitine Formula – Shed weight faster and amplify muscle growth with Evlution Nutrition L-Carnitine500, a stimulant-free fat burning solution that enhances your workout, improves your physique, and helps you to push yourself to your limits.
  • Burn Fat For Fuel – L-Carnitine500 works from the inside, converting stored body fat to fuel by transporting long chain fatty acids to cells where they can be converted into energy. This process found in our pure L-Carnitine helps to stave off fatigue, so you can exercise longer, recover faster, and get the most out of each workout.
  • Spend More Time At The Gym – Other benefits of L-Carnitine include helping you to exercise harder and boost your recovery by aiding in the reduction of muscle damage. For maximum effectiveness take L-Carnitine500 1 to 3 times per day between meals, 30-45 minutes before workouts, and/or immediately after you exercise.
  • Pure Transparent Ingredients – Our L Carnitine capsules are non-GMO, gluten-free, and proudly made in the USA at a GMP-certified facility to ensure you’re getting the very best. Unlike our competitors, L Carnitine500 contains no proprietary blends and has 100% transparent labeling allowing you to see the full dosing of each ingredient.
  • 30 Day Satisfaction Guarantee: No compromise is what our company is founded on. That means we’re committed to creating supplements made with the best possible ingredients and manufacturing to produce the highest quality products period! We never stop working to earn your trust by exceeding expectations and helping our community, friends, and family achieve their goals every day.
#18 Real Supplements Rated Best in 2020
Now Foods Acetyl-L-Carnitine ACL 500 mg, 360 Veg Capsules - Non-GMO
78 Reviews
Now Foods Acetyl-L-Carnitine ACL 500 mg, 360 Veg Capsules - Non-GMO
  • ✅ VALUE SIZE: 500mg strength of the popular Acetyl-L-Carnitine (ALC). Get started today.
  • ✅ HIGHLY BIO-AVAILABLE FORM: ALC is a highly bioavailable form of carnitine that can cross the blood-brain barrier, where it helps to manage typical oxidative stress, supports mitochondrial function, and helps to maintain normal neurotransmitter activity.*
  • ✅ SUPPORTS CELLULAR ENERGY *: ALC is a modified amino acid that supports cellular energy production by assisting in the transport of fat into the mitochondria where it is converted into ATP (cellular fuel).*
  • ✅ THE SMART CHOICE: Non-GMO, Vegan Friendly, Kosher, Dairy Free. Add today.
  • ✅ TRUSTED QUALITY: Since 1968 NOW’s mission has been to provide value in products that empower healthier lives, and this mission is summed up in our company’s core values.
#20 Real Supplements Rated Best in 2020
Co-Q10 with L-Carnitine Liquid - Orange
  • CoQ-10 FROM FERMENTATION PROCESS: Our CoQ-10 liquid contains only the highest quality CoQ-10 naturally derived from a fermentation process as opposed to a synthetic form.
  • SUPPORTS CARDIOVASCULAR HEALTH: CoQ-10 is a crucial compound needed by the mitochondria of every cell to produce energy for the cell, and is especially important to heart, liver and kidney tissue.
  • SUPPORTS ENERGY PRODUCTION FROM FATS: L-Carnitine helps transports fats (lipids) into cells where is can be used for energy, playing a critical role in fat metabolism in heart and skeletal muscle tissue where fat conversion to energy is most required.
  • INSPIRED BY NATURE, SUPPORTED BY SCIENCE: Our goal is to provide consumers with products sourced with the highest quality ingredients, verified by third party evaluation. We are committed to Non-GMO, organic, gluten-free and vegan certifications.
  • OUR MISSION: Our staff of highly trained professionals is committed and passionate about the development of innovative nutritional supplements that reflect sound, clinical experimental data collection, interpretation and application.

Best 10 Uses of L-Carnitine

L-carnitine is a naturally occurring amino acid found mostly in meat and dairy products.  It’s “conditionally essential,” which means that your body can produce it as long as you’re also eating enough of two other amino acids that it can’t produce, lysine and methionine.  L-carnitine several important functions in the body related to the production of cellular energy.  People supplement with L-carnitine to increase their body’s carnitine stores, especially the carnitine levels in their muscles.  This, in turn, can produce a number of beneficial effects, including reduced muscle soreness, and quicker recovery, and increased nitric oxide production.

There are various types of carnitine, however, D-Carnitine and L-Carnitine are the most common as well as beneficial for our health. L-Carnitine is a building block of protein that is originated within the body. Also, it is present in our diet but, in minute amounts, therefore, luckily supplemental L-carnitine is available to enhance its functions inside the body. It has some amazing uses that are given below.

1. Manage the Blood Sugar Levels

L-carnitine has a great impact on controlling the blood sugar levels. Also, a study performed on a diabetic patient proved that it assists in managing the response to a high-carb meal. It enhances the effectiveness of insulin in the body by battling against insulin sensitivity.

2. Boosts the Male fertility

L-carnitine helps in protecting the sperms from the radical damage due to its antioxidant property. It increases the mobility of sperm and prevents the abnormal ones to grow and regenerate. This helps in boosting up the fertility of males.

3. Fights baldness

A recent research illustrated hoe L-carnitine helps in fighting baldness by reducing the death of hair cell and promoting hair elongation and growth. Also, it helps in treating various types of hair loss such as androgenic alopecia.

4. Optimum for Healthy Brain

L-carnitine supplements are beneficial for patients suffering from mental disorders like Alzheimer’s disease by improving memory and focus. Acetyl-L-carnitine is optimum for improving the mental functioning and reversing the decline in mental health.

5. Significant for Skin

L-carnitine is one of the major ingredients in many of our natural skin care products because of its anti-inflammatory, anti-aging, and antioxidant properties. It helps in diminishing acne and preventing the release of oil from the pores.

6. Great for Heart

L-Carnitine helps in improving various consequences of the cardiovascular diseases including, chronic heart failure, peripheral vascular disease, coronary heart disease, and irregular heart rhythms by decreasing the blood pressure as well as the inflammation related.

7. Improves Workout Performance

Several athletes take l-carnitine supplements in order to enhance the performance. It efficiently delivers oxygen to the muscles and prevents fatigue. Also, after a workout, it assists in diminishing the muscle soreness.

8. Accelerate the Weight loss

One of the basic reasons why people take supplements of L-Carnitine is that it accelerates the process of weight loss. It helps in increasing the energy and burning fats. Along with a proper exercise regimen, supplemental L-carnitine showed promising results in obese people.

9. Improves the Quality of Sleep

Even a small change in the creatinine metabolism associated with any heart disorder ultimately results in various sleeping disorders. It improves the quality of sleep and prevents the symptoms of obstructive sleep apnea and insomnia. Also, patients with fibromyalgia had sleep disturbances, therefore, they were treated with l-carnitine supplements.

10. Controls the Hyperactive Thyroid

L-carnitine supplements assist in controlling the secretions of thyroid hormones namely thyroxine and triiodothyronine and inhibit their entrance into the nucleus of the cell. It also helps in inhibiting the hyperactive thyroid gland. It improves the symptoms related to various thyroid disorders such as hypothyroid and hyperthyroid.

Real Supplements gives you the best L-Carnitine on the market today. Our top-rated lists are fresh and current so you get the best options.

Real Supps Team

We needed to put together a site we could send our friends and clients to with confidence they were getting the most updated information.  We hope this site is used as a reference that will make your purchase easier and with as much knowledge as we can share.

With over 30 years experience in the health and fitness industry, we are a team of fitness bloggers and entrepreneurs, certified personal trainers and nutritionists contributing to bringing the most up-to-date content.  We send our friends and clients here for reference to new supplements and hope it serves as a reference site for you as well.

Amazon Best Rated Products - Last Updated on 2021-09-21.

DISCLAIMER: There are affiliate links on this page. This means that at no cost to you, we will receive a small commission if you purchase through our link.