Advertising Disclosure
Updated: 06 Apr 2026

10 Best Weight Loss Supplements L-carnitine

#1 Best Pick
The Patch Remedy Metabolise Patch | 5-HTP, Guarana, L-Carnitine, Fucus, Zinc, Yerba Mate, Raspberry Ketone | 30 Patches

The Patch Remedy Metabolise Patch | 5-HTP, Guarana, L-Carnitine, Fucus, Zinc, Yerba Mate, Raspberry Ketone | 30 Patches

Brand: The Patch Remedy
Read more
  • INNOVATIVE BOTANICAL BLEND – Includes 5-HTP, Guarana, L-Carnitine, Fucus, Yerba Mate, Zinc, and more β€” carefully selected to support your wellness routine.
  • TOPICAL CONVENIENCE – No need for capsules, powders, or shakes. Simply apply the patch to clean, dry skin and get on with your day. No mixing, no mess.
  • DISCREET & COMFORTABLE – Each 3cm x 3cm clear patch is lightweight and easy to wear under clothing, whether you're at home, at work, or on the go.
  • STEADY SUPPORT – Designed for up to 12 hours of wear, offering gradual release throughout the day as part of your everyday self-care practice.
  • EASY TO USE ANYTIME – Whether at home, at work, or travelling, the patch offers simple support wherever your day takes you.
Check latest price on Amazon
#2 Best Value
Best Naturals Acetyl L-Carnitine 500 Mg 120 Capsules (120 Count (Pack of 2))

Best Naturals Acetyl L-Carnitine 500 Mg 120 Capsules (120 Count (Pack of 2))

Brand: Best Naturals
Read more
  • 3rd Party Lab Tested for Purity & Quality.
  • 500 mg of Acetyl L-Carnitine per Capsule - 120 Capsules 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.
Check latest price on Amazon
#3 Budget Pick
The X Athletics Dialed Shred, Fat Burner, Clinically Dosed, Science-Backed Formula for Weight Loss with L-Carnitine, Alpha GPC, Caffeine, Blue Raspberry, 40 Servings

The X Athletics Dialed Shred, Fat Burner, Clinically Dosed, Science-Backed Formula for Weight Loss with L-Carnitine, Alpha GPC, Caffeine, Blue Raspberry, 40 Servings

Brand: The X Athletics
Read more
  • WEIGHT LOSS: Dialed Shred is a powerful fat burner with dual L-Carnitine forms and thermogenic activators that helps support metabolism and fat oxidation to accelerate fat loss and support your fitness goals.
  • INTENSE ENERGY & FOCUS: Alpha GPC and Theanine help sharpen focus and the mind-muscle connection, while multi-source caffeine delivers increased energy and powers you through your toughest workouts.
  • CLINICALLY DOSED INGREDIENTS: Our weight loss supplement is formulated with science-backed, effective dosages for maximising performance and results. 40 servings per container.
  • UNISEX FORMULATION: The fat burner for men and women also supports overall well-being with glycine, fibre, and absorption enhancers.
  • TASTY FLAVOURS: Dialed Shred is available in 6 delicious flavours that will bring back the nostalgia of classic Aussie sweets, ensuring you do not have to compromise on taste for performance as you burn the fat in the gym.
Check latest price on Amazon
#4 Top Choice
Pro Supps L-Carnitine 1500 Liquid Fat Burner, Metabolic Enhancer (Berry Flavor), 31 Servings, Torch Fat and Get Ripped

Pro Supps L-Carnitine 1500 Liquid Fat Burner, Metabolic Enhancer (Berry Flavor), 31 Servings, Torch Fat and Get Ripped

Brand: ProSupps
Read more
  • ENERGY. PERFORMANCE. STIMULANT FREE. Our premium L-Carnitine formula can aid in the conversion of fat to a usable energy source. L-Carnitine has been shown in numerous studies to support fat loss and aid in muscle preservation during training, making it a powerful, stimulant free fat burner supplement for men and women.
  • 7 AMAZING FLAVORS: ProSupps L-Carnitine 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.
  • COMMITTED TO QUALITY: ProSupps is committed to providing products that contain the most effective, 3rd party tested and safe ingredients. All our products are held to the highest standards and are only manufactured in facilities that employ cGMP practices.
  • 100% SATISFACTION GUARANTEED: ProSupps is committed to providing you with products that taste great and work as hard as you do. That's why we offer a 30 day, 100% satisfaction guarantee. Results. Period! Packaging may vary.
Check latest price on Amazon
#5 Popular Choice
BPI Sports CLA + Carnitine Dietary Supplement 50 Serve, Watermelon Freeze, Watermelon Freeze 300 grams

BPI Sports CLA + Carnitine Dietary Supplement 50 Serve, Watermelon Freeze, Watermelon Freeze 300 grams

Brand: BPI Sports
Read more
  • Support athletic performance
  • Stimulant-free weight loss formula
  • Promote lean muscle
  • Enhance energy metabolism, improve athletic performance, and fight fatigue
  • Dates on US products may be displayed as MM/DD/YYYY
Check latest price on Amazon
#6 Top Pick
Nutricost Acetyl L-Carnitine Non-GMO and Gluten Free 180 Caps

Nutricost Acetyl L-Carnitine Non-GMO and Gluten Free 180 Caps

Brand: Nutricost
Read more
  • 180 Servings Of High Quality Acetyl L-Carnitine
  • 500mg Per Capsule, 180 Capsules Per Bottle
  • Serving Size: 1 Capsule
  • Non-GMO, Gluten Free, 3rd Party Tested
  • Made in a GMP Compliant, FDA Registered Facility
Check latest price on Amazon
#7 Top Pick
The X Athletics Dialed Shred, Fat Burner, Clinically Dosed, Science-Backed Formula for Weight Loss with L-Carnitine, Alpha GPC, Caffeine, Creaming Soda Raspberry, 40 Servings

The X Athletics Dialed Shred, Fat Burner, Clinically Dosed, Science-Backed Formula for Weight Loss with L-Carnitine, Alpha GPC, Caffeine, Creaming Soda Raspberry, 40 Servings

Brand: The X Athletics
Read more
  • WEIGHT LOSS: Dialed Shred is a powerful fat burner with dual L-Carnitine forms and thermogenic activators that helps support metabolism and fat oxidation to accelerate fat loss and support your fitness goals.
  • INTENSE ENERGY & FOCUS: Alpha GPC and Theanine help sharpen focus and the mind-muscle connection, while multi-source caffeine delivers increased energy and powers you through your toughest workouts.
  • CLINICALLY DOSED INGREDIENTS: Our weight loss supplement is formulated with science-backed, effective dosages for maximising performance and results. 40 servings per container.
  • UNISEX FORMULATION: The fat burner for men and women also supports overall well-being with glycine, fibre, and absorption enhancers.
  • TASTY FLAVOURS: Dialed Shred is available in 6 delicious flavours that will bring back the nostalgia of classic Aussie sweets, ensuring you do not have to compromise on taste for performance as you burn the fat in the gym.
Check latest price on Amazon
#8 Top Pick
Best Naturals - L-Carnitine 1000 mg. - 120 Tablets

Best Naturals - L-Carnitine 1000 mg. - 120 Tablets

Brand: Best Naturals
Read more
  • Fitness Support , Transports Fatty Acids, Boosts Cellular Energy
  • Pure L-Carnitine is an amino acid that normally attracts water which can cause it to deteriorate rapidly We use a tartrate form to help ensure that this product maintains stability and full potency
  • L-Carnitine is important for providing energy to muscles, and has been described as a conditionally essential nutrient for humans
  • 1000 mg of L-Carnitine Fumarate per Tablet; 120 Tablets per Bottle
  • All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world
Check latest price on Amazon
#9 Top Pick
Doctor’s Best Acetyl-L-Carnitine with Biosint Carnitines, Non-GMO, Vegan, Gluten Free, 500 mg 120 Veggie Caps

Doctor’s Best Acetyl-L-Carnitine with Biosint Carnitines, Non-GMO, Vegan, Gluten Free, 500 mg 120 Veggie Caps

Brand: Doctor's BEST
Read more
  • DOCTOR'S BEST ACETYL-L-CARNITINE (ALC) is a naturally occurring form of L-carnitine, a vitamin-like nutrient synthesized in the body from the amino acids lysine and methionine. It helps support cognitive function and support health brain neuron function.
  • BRAIN FUNCTION BOOST - helps supply the brain with energy through by enhancing mitochondrial efficiency.
  • ENERGY ENHANCER - supports improvement of memory, learning and focusing. Helps to reduce unwanted stored fats and enhances brain health.
  • BEST QUALITY ABSORPTION – ALC readily crosses the blood-brain barrier, where it has specific benefits for brain neurons. ALC has been shown to promote healthy ALC levels that can pass the blood-brain barrier to support healthy brain function.
  • CLINICAL TRIALS - contains Biosint Acetyl-L-Carnitine, which is manufactured in Italy by the reputable company Sigma-Tau. A global leader in L-carnitine research, Sigma-Tau holds numerous patents for production of L-carnitine..During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
Check latest price on Amazon
#10 Top Pick
EHPlabs Acetyl L Carnitine Powder - Supports Natural Energy Production, Assists in Healthy Brain Function, Supports Heart Health, Vegan, Gluten Free, Non GMO - 100 Servings

EHPlabs Acetyl L Carnitine Powder - Supports Natural Energy Production, Assists in Healthy Brain Function, Supports Heart Health, Vegan, Gluten Free, Non GMO - 100 Servings

Brand: EHP LABS
Read more
  • Supports Brain Health - Current literature suggests that Acetyl L Carnitine supplementation may improve markers of learning and prevent age-related memory decline. It has been demonstrated to improve brain function & short-term memory in healthy older adults.
  • Improves Exercise Performance - Whether you're a beginner or a professional athlete, L-Carnitine may improve exercise performance. It has been demonstrated to increase oxygen supply and blood flow to the muscles, helping reduce fatigue, muscle soreness and delay discomfort.
  • Supports Heart Health - Reinforces the integrity of the mitochondria by promoting the movement of unwanted acids into the mitochondria, supporting a healthy heart.
  • Easy to Take - Mix 1-2 scoops with 10 Ounces (295 ml) of water, juice or beverage of your choice. Do not exceed 5 scoops per day. Acetyl L-Carnitine is 100% stack-safe and can ideally be added to our OxyShred.
  • High Quality - We use only the finest ingredients, all of which are manufactured in our USA, GMP compliant, state-of-the-art facility. Every batch is laboratory tested for quality assurance. We're confident that you'll love our products.
Check latest price on Amazon

More products you might like!!