• 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

Sale#1 Real Supplements Rated Best in 2020
NOW Sports Nutrition, L-Carnitine Liquid 1000 mg, Highly Absorbable, Citrus, 16-Ounce
788 Reviews
NOW Sports Nutrition, L-Carnitine Liquid 1000 mg, Highly Absorbable, Citrus, 16-Ounce
  • Same trusted quality with a brand new look! Packaging may vary
  • AMINO ACIDS/HIGHLY ABSORBABLE: NOW Sports L-Carnitine 1,000 mg Liquid has all of the properties of carnitine in a highly absorbable liquid form with a pleasant citrus taste.
  • CITRUS FLAVOR: 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.*
  • 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#2 Real Supplements Rated Best in 2020
NOW Sports Nutrition, L-Carnitine Liquid, Triple Strength 3000 mg, Citrus, 16-Ounce
3,053 Reviews
NOW Sports Nutrition, L-Carnitine Liquid, Triple Strength 3000 mg, Citrus, 16-Ounce
  • Same trusted quality with a brand new look! Packaging may vary
  • NOW Sports Triple Strength L-Carnitine Supplement offers 3,000 mg of pure, clinically tested, vegetarian/vegan, highly absorbable liquid L-Carnitine to support fat metabolism.* Mix it in water for a quick citrus flavored DIY sports drink or add it to a shake/smoothie! (GMP, Halal, Kosher, Non-GMO, Steroid Free, Dairy Free, Egg Free, Made Without Gluten, Soy Free)
  • Informed-Choice is an adulteration monitoring program through LGC that conducts monthly blind batch testing of registered products at the retail level and posts updated results on their website. The Informed-Choice logo indicates that these products have been tested for, and certified to be free of, banned substances through the Informed-Choice certification program.
  • Packaged in the USA by a family owned and operated company since 1968
#3 Real Supplements Rated Best in 2020
Thorne L-Carnitine - Amino Acid Supplement to Support Energy Production - 60 Capsules
  • Helps convert calories to energy
  • Supports normal levels of cholesterol and triglycerides
  • Promotes 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, 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
#4 Real Supplements Rated Best in 2020
Life Extension Optimized Carnitine – L-Carnitine Supplement - Supports Heart, Brain Health& Exercise Recovery – Gluten-Free – Non-GMO – 60 Capsules
171 Reviews
Life Extension Optimized Carnitine – L-Carnitine Supplement - Supports Heart, Brain Health& Exercise Recovery – Gluten-Free – Non-GMO – 60 Capsules
  • ATHLETES’ CHOICE - Carnitine is popular with athletes because it supports the recovery process after exercise by in habiting oxidative stress on muscle tissue, as well helping the body re-energize at the cellular level.
  • ENERGY BOOST - Carnitine helps your mitochondria produce cellular energy quickly and efficiently—which is great whether you need a boost of energy after a tough workout or are seeking more pep in your step because aging has slowed you down.
  • HEART & BRAIN HEALTH...AND BEYOND – Carnitine supports memory, learning and overall cognitive function. Our formula also supports heart health, enhances energy metabolism, and helps increase ATP levels.
  • INGREDIENTS MATTER - Sourced using only the finest raw ingredients with the purity and potency your body deserves. This product is certified non-GMO and gluten-free. Manufactured in the USA and a Certificate of Analysis is available for every product we produce.
  • LIVE YOUR HEALTHIEST LIFE - For over 40 years, we’ve been developing advanced, effective formulas made with the highest standards and based on the latest scientific findings. We believe the answers to a healthier, richer life are within reach and that rigorous scientific research is the path to get us there. Or formulations are created using the exact ingredients and dosages used in the studies that inspired them, ensuring that maximum bioavailability and efficacy is achieved.
#5 Real Supplements Rated Best in 2020
Best Naturals L-Carnitine 1000mg 60 Tablets (60 Count (Pack of 1))
533 Reviews
Best Naturals L-Carnitine 1000mg 60 Tablets (60 Count (Pack of 1))
  • 3rd Party Lab Tested for Purity & Quality.
  • 1000 mg of L-Carnitine per Tablet - 60 Tablets per Bottle.
  • Non-GMO & Gluten-Free.
  • Proudly Made in USA, GMP Compliant, FDA Registered Facility.
  • No Artificial Color, Flavor, or Sweetener, No Preservatives, No Sugar, No Milk, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish. Sodium Free.
Sale#6 Real Supplements Rated Best in 2020
Nutricost L-Carnitine Tartrate Powder (250 Grams) - 1 Gram per Serving, 245 Servings
  • 1 Gram of L-Carnitine Tartrate Per Serving (250 Servings)
  • 250 Grams of L-Carnitine Tartrate Per Bottle
  • High Quality L-Carnitine Tartrate Powder
  • Serving Scoop Included (1/3 tsp), Non-GMO, Gluten Free
  • Manufactured In a GMP Compliant, FDA Registered Facility
#7 Real Supplements Rated Best in 2020
Super Strength L-Carnitine 1000mg Servings Plus Calcium for Boosted Metabolism and Improved Muscle Gain - Arazo Nutrition
5,031 Reviews
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#8 Real Supplements Rated Best in 2020
Pomona Wellness L- Carnitine, Helps Boost Metabolism, Supports Cognitive Health Cardiovascular Functions and Metabolic Health, 500mg Per Serving, Non-GMO, 30 Capsules
  • CARNITINE CAPSULES: Acetyl L-Carnitine has been known to help support energy, brain, fatty acid metabolism, and cellular energy. Add to your daily supplement routine to help support overall health.
  • EASY TO SWALLOW: This carnitine supplement can help turn fat into energy by moving the fatty acids into cellular mitochondria where they are oxidized for usable energy. Take 1 capsule taken 1 to 3 times daily between meals
  • HELPS REDUCE COGNITIVE FATIGUE: Helps support mental focus and clarity and may help support brain function and cardiovascular health by increasing oxygen supply to the muscles.
  • MADE IN THE USA: All Pomona Wellness supplements are manufactured in an FDA-registered and GMP Facility. Packaging may vary.
  • POMONA WELLNESS: Our supplements are made with with no fillers, binders, or preservatives. Formulated with good for you ingredients to support everyday wellness and overall health.
Sale#9 Real Supplements Rated Best in 2020
EVL L-Carnitine Supplement for Weight Loss Support - L carnitine 500mg Diet Pills For Weight Loss Lean Muscle Growth and Fat Burning Support with Stimulant Free L Carnitine L Tartrate - 120 Servings
  • Premium L-Carnitine Formula – Shed weight faster and amplify muscle growth with EVL 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.
  • 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.

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 2023-12-06.

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.