Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
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10 Best sports nutrition l carnitine supplements of 2026
Save up to 56% off
Best Choice1
ProSupps9.7Exceptional
ProSupps L-Carnitine Liquid 3000, Stimulant-Free Liquid Shots, Berry
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is discontinued by manufacturer:No
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asin:B01GVPUOCQ
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product dimensions:2.5 x 2.5 x 8.5 inches 1 Pounds
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date first available:June 10, 2016
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item model number:P28744
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Value for Money2
Cutler Nutrition9.6Exceptional
Cutler Nutrition Liquid L-Carnitine Fat Burner with Acetyl L-Carnitine
10% Off-
is discontinued by manufacturer:N/A
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asin:B0D2LVDFJ3
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product dimensions:2.5 x 2.5 x 8.5 inches 1.15 Pounds
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date first available:April 24, 2024
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item model number:N/A
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3
Nutricost9.4Excellent
Nutricost L-Carnitine Tartrate 1,000mg, 240 Capsules, 120 Servings
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is discontinued by manufacturer:No
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asin:B06Y1BTLGK
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product dimensions:N/A
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date first available:April 4, 2017
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item model number:N/A
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4
Force Factor9.1Excellent
Force Factor L-Carnitine Liquid 3000mg, Maximum Strength Supplement
56% Off Limited Time Deal-
is discontinued by manufacturer:N/A
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asin:B0CQTT5L76
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product dimensions:N/A
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date first available:December 23, 2023
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item model number:FFS-01160-FG
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5
NOW Foods8.9Very Good
NOW Foods Sports Nutrition, L-Carnitine Liquid 1000 mg, Highly Absorbable, Citrus, 16-Ounce
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is discontinued by manufacturer:No
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asin:B0013OQLBE
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product dimensions:6 x 5 x 4 inches; 3.2 ounces
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date first available:April 21, 2004
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item model number:0065
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6
NOW Foods8.8Very Good
NOW Foods Supplements, L-Carnitine 1,000 mg, Purest Form, Amino Acid, Fitness Support*, 50 Tablets
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is discontinued by manufacturer:No
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asin:B001B4NDF8
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product dimensions:2.5 x 2.5 x 4.44 inches 1.76 ounces
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date first available:February 9, 2004
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item model number:0067
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7
Cutler Nutrition8.7Very Good
Cutler Nutrition Liquid L-Carnitine Fat Burner with Acetyl L-Carnitine
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is discontinued by manufacturer:N/A
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asin:B0F561RBCQ
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product dimensions:8 x 3 x 3 inches; 1.2 Pounds
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date first available:April 16, 2025
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item model number:N/A
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8
Life Extension8.6Very Good
Life Extension L-Carnitine – 500 mg, Energy Supplement, Memory Supplement – Free Form Amino Acid, Nitric Oxide Support, Healthy Blood Pressure – Gluten-Free, Non-GMO, Vegetarian – 30 Capsules
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is discontinued by manufacturer:No
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asin:B002GJ7JLQ
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product dimensions:1.75 x 1.75 x 3.25 inches 1.76 ounces
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date first available:June 20, 2010
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item model number:01532
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9
NOW Foods8.5Good
NOW Foods Supplements, L-Carnitine 1,000 mg, Purest Form, Amino Acid, Fitness Support*, 100 Tablets
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is discontinued by manufacturer:No
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product dimensions:5.5 x 3 x 4 inches; 7.04 ounces
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asin:B0013OSNCE
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date first available:May 16, 2008
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department:Health and Beauty>Health and Wellness
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10
NaturaLife Labs8.4Good
NaturaLife Labs Acetyl L-Carnitine (ALCAR) 1500 mg per Serving – 100 Capsules – Non-GMO, Gluten-Free, Vegan
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is discontinued by manufacturer:N/A
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asin:B07Q6ZVMK4
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product dimensions:N/A
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date first available:April 1, 2019
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item model number:N/A
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