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Liquid L-Carnitine 1500 Blue Raspberry

ALLMAX
4.6
★ ★ ★ ★ ★
(2201 ratings)
L-Carnitine 1500 mg
Product Image
Score78
1,500 mg of L-carnitine of an unspecified form offers good dose value, but missing form details weaken quality confidence.
How scoring works
Quantity:16 Ounce(s) • (32 servings)
Goals:
Fitness
Cardiovascular Support

Score 78

1,500 mg of L-carnitine of an unspecified form offers good dose value, but missing form details weaken quality confidence.
How scoring works

Also available as

1 option
Fruit Punch L-Carnitine 1500 mg • 16 Ounce(s) • 32 servings $17.99 ($0.56 per serving)
$17.80($0.55 per serving)
iHerb
$ 18.50
Nutrition Faktory
$ 19.99
Amazon
$ 17.80
Report prices

Analysis

The stated amount is substantial, and the zero-carbohydrate liquid provides an easy alternative to multiple capsules. The 1,500 mg serving is presented in a blue-raspberry liquid format for routine use.

Without a named chemical form or source, alignment with the better-studied carnitine forms remains uncertain. Benefits are most likely when carnitine support is relevant rather than as a universal performance or heart-health effect.

Thiamine, methylcobalamin, and pantothenic acid support general energy metabolism but do not add a major separate performance pathway. The formula remains centered on carnitine rather than broad cardiovascular or performance coverage. Good dose value and 32 servings shape the practical appeal.

Who is it for
  • Adults who prefer liquid carnitine
  • Fitness users prioritizing a substantial labeled amount
Best for
  • Focused fatty-acid transport support
  • Value-conscious carnitine use

Pros

  • Provides 1,500 mg per labeled serving
  • Simple carnitine-focused formula
  • Blue-raspberry liquid format
  • Good dose value

Cons

  • Chemical form is not disclosed
  • No branded raw-material source is identified
  • Supports a narrow metabolic pathway rather than broad cardiovascular coverage

Warnings

  • L-carnitine at this amount may cause nausea, abdominal cramps, diarrhea, or a fishy body odor in sensitive users.
  • People treated for low thyroid function should seek medication-specific advice because L-carnitine may oppose some thyroid-hormone activity.
  • People with a seizure disorder should discuss high-dose L-carnitine with a clinician because increased seizure activity has been reported in susceptible users.

Nutrient quality

78 High impact

The substantial carnitine amount and modest B vitamins align with fitness-oriented use. The chemical form, branded source, and non-active ingredients are not supplied.

Ingredient transparency

77 High impact

Active complex amounts and serving details are stated clearly. The chemical form, branded source, and non-active ingredients are not supplied.

Customer satisfaction

72 High impact

The supplied average rating is strong, and a very large response volume makes the average rating more stable. No comment-level feedback is supplied to judge recurring complaints or purpose-specific experiences.

Value for money

85 Highest impact

The liquid provides strong value for the stated active amount. Formula focus and disclosure determine whether that value holds up in practice.

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Goals

Fitness
Fitness
Impact
High effect
B- Goal FitB Strength of SupportC CoverageA- Formula Quality

The 1,500 mg L-carnitine amount may support recovery and fatty-acid transport at a practical daily level. Thiamine, methylcobalamin, and pantothenic acid add modest metabolic support but are not direct performance drivers.

The liquid does not identify the carnitine chemical form, purity, or source, which limits confidence in material quality. Clear dosing and a focused formula still provide reasonable recovery depth without an opaque blend.

Study evidence
L-Carnitine Supportive 52 studies
Cardiovascular Support
Cardiovascular Support
Impact
High effect
B- Goal FitB Strength of SupportC CoverageA- Formula Quality
L-Carnitine · 1500 mgVitamin B12 · 6 mcg

The liquid provides a substantial L-carnitine amount for mitochondrial fatty-acid transport and cardiac energy. Evidence for cardiovascular benefit is most relevant in selected deficient or clinical populations rather than all healthy users.

The active amount is clear, but the chemical form, purity standard, and branded source are not identified. Small amounts of B vitamins fit energy metabolism but add limited cardiovascular depth.

Study evidence
L-Carnitine Supportive 73 studies

Ingredients

IngredientAmount per serving
Calories
0 Calorie(s)
Total Carbohydrates
0 Gram(s)
Vitamin B1 (Thiamine Hydrochloride)
 1.5 mg
Vitamin B12 (Methylcobalamin)
 6 mcg
Vitamin B5 (Pantothenic Acid)
 5 mg
L-Carnitine
1500 mg
Gluten Free Adults 18–50 Sugar Free Vegetarian
Report overview
L-Carnitine · 1500 mg OverallScore53
F Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyA+ Value

The serving supplies an effective stated amount of L-carnitine at a low cost per gram. The label does not identify the chemical form, elemental yield basis, branded source, or purity standard, which weakens confidence in material quality. It remains economical for users who prioritize dose and liquid convenience over detailed sourcing.

View ingredientView products
Loading alternative details
84 Performance

Mega-Liposomal R-ALA Organic Fruit Flavor

Aurora NutraScience
R-alpha lipoic acid, CoQ10, and L-carnitine create a coherent, meaningfully dosed cellular-energy formula; its form and goal fit provide a clearer option when the original has weak form disclosure or limited carnitine-specific quality. Liposomal delivery is promising, but unspecified CoQ10 and carnitine forms plus premium serving value temper the strengths.
82 Performance

L-Carnitine 500 mg

NOW
L-carnitine tartrate provides a clear maintenance amount in a form well suited to exercise recovery; its form and goal fit provide a clearer option when the original has weak form disclosure or limited carnitine-specific quality. No branded purity source or non-active ingredient list is supplied.
80 Performance

L-Carnitine 500 mg

Protocol For Life Balance
L-carnitine tartrate provides a clear maintenance amount in a suitable exercise-oriented form; its form and goal fit provide a clearer option when the original has weak form disclosure or limited carnitine-specific quality. No branded purity source or non-active ingredient list is supplied.
87 Budget

L-Carnitine

NOW
L-carnitine tartrate provides a useful maintenance amount in a flexible liquid form; the lower serving cost improves economy when the original has weak form disclosure or limited carnitine-specific quality. No branded purity source or non-active ingredient list is supplied.
86 Budget

L-Carnitine + Tartrate

ALLMAX
L-carnitine tartrate provides a focused amount for exercise recovery and energy metabolism, with pantothenic acid offering compatible support; the lower serving cost improves economy when the original has weak form disclosure or limited carnitine-specific quality. Clear doses, a concise formula, and favorable serving economics make it a practical option despite the missing elemental carnitine yield.
83 Budget

L-Carnitine 500 mg

Swanson
L-carnitine base provides a direct maintenance amount with clearly listed calcium; the lower serving cost improves economy when the original has weak form disclosure or limited carnitine-specific quality. No branded purity source or non-active ingredient list is supplied.
87 Value

L-Carnitine 500 mg

NOW
L-carnitine tartrate provides a clear maintenance amount in a form well suited to exercise recovery; the quality-to-cost balance is favorable when the original has weak form disclosure or limited carnitine-specific quality. No branded purity source or non-active ingredient list is supplied.
73 Value

Liquid L-Carnitine 1500 Fruit Punch

ALLMAX
The substantial carnitine amount and modest B vitamins align with fitness-oriented use; the quality-to-cost balance is favorable when the original has weak form disclosure or limited carnitine-specific quality. The chemical form, branded source, and non-active ingredients are not supplied.
81 Value

L-Carnitine 500 mg

Jarrow Formulas
L-carnitine tartrate provides a clear maintenance amount in an exercise-oriented form; the quality-to-cost balance is favorable when the original has weak form disclosure or limited carnitine-specific quality. No branded purity source or non-active ingredient list is supplied.
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Efficacy of l-carnitine supplementation for management of blood lipids: A systematic review and dose-response meta-analysis of randomized controlled trials.
    Askarpour M; Hadi A; Symonds ME; Miraghajani M; Omid Sadeghi; Sheikhi A; Ghaedi E · Nutrition, metabolism, and cardiovascular diseases : NMCD · 2020
    Meta-analysis55 studies pooledCardiovascular Support forL-Carnitine
  2. Efficacy of a novel formulation of L-Carnitine, creatine, and leucine on lean body mass and functional muscle strength in healthy older adults: a randomized, double-blind placebo-controlled study.
    Evans M; Guthrie N; Pezzullo J; Sanli T; Fielding RA; Bellamine A · Nutrition & metabolism · 2020
    Randomized trial42 participantsFitness forL-Carnitine
  3. Blood Pressure and Metabolic Effects of Acetyl-l-Carnitine in Type 2 Diabetes: DIABASI Randomized Controlled Trial.
    Parvanova A; Trillini M; Podestà MA; Iliev IP; Aparicio C; Perna A; Peraro F; Rubis N; Gaspari F; Cannata A; Ferrari S; Bossi AC; Trevisan R; Parameswaran S; Chávez-Iñiguez JS; Masnic F; Seck SM; Jiamjariyaporn T; Cortinovis M; Perico L; Sharma K; Remuzzi G; Ruggenenti P; Warnock DG · Journal of the Endocrine Society · 2022
    Randomized trial229 participantsCardiovascular Support forL-Carnitine
  4. Acute L-Carnitine Supplementation Does Not Improve CrossFit® Performance: A Randomized, Double-Blind, Placebo-Controlled Crossover Study.
    Devrim-Lanpir A; Velasco LS; Ramirez Lara FG; Ojeda Sanchez A; Kimble R; Zare R; Gunes FE; Knechtle B; Weiss K; Rosemann T; Heinrich K · Nutrients · 2025
    Randomized trial20 participantsFitness forL-Carnitine
  5. Intestinal microbiota metabolism of L-carnitine, a nutrient in red meat, promotes atherosclerosis.
    Koeth RA; Wang Z; Levison BS; Buffa JA; Org E; Sheehy BT; Britt EB; Fu X; Wu Y; Li L; Smith JD; DiDonato JA; Chen J; Li H; Wu GD; Lewis JD; Warrier M; Brown JM; Krauss RM; Tang WH; Bushman FD; Lusis AJ; Hazen SL · Nature medicine · 2013
    Other2,595 participantsCardiovascular Support forL-Carnitine
  6. L-Carnitine treatment reduces severity of physical and mental fatigue and increases cognitive functions in centenarians: a randomized and controlled clinical trial.
    Malaguarnera M; Cammalleri L; Gargante MP; Vacante M; Colonna V; Motta M · The American journal of clinical nutrition · 2008
    Randomized trial66 participantsFitness forL-Carnitine
  7. The Effects of L-Carnitine Supplementation on Weight Loss, Glycemic Control, and Cardiovascular Risk Factors in Patients With Type 2 Diabetes: A Systematic Review and Dose-response Meta-Analysis of Randomized Controlled Trials.
    Mirrafiei A; Jayedi A; Shab-Bidar S · Clinical therapeutics · 2024
    Meta-analysis2,041 participants21 studies pooledCardiovascular Support forL-Carnitine
  8. A systematic review and meta-analysis of propionyl-L-carnitine effects on exercise performance in patients with claudication.
    Brass EP; Koster D; Hiatt WR; Amato A · Vascular medicine (London, England) · 2013
    Meta-analysis13 studies pooledFitness forL-Carnitine
  9. L-Carnitine supplementation reduces oxidized LDL cholesterol in patients with diabetes.
    Malaguarnera M; Vacante M; Avitabile T; Malaguarnera M; Cammalleri L; Motta M · The American journal of clinical nutrition · 2009
    Randomized trial81 participantsCardiovascular Support forL-Carnitine
  10. Oral acetyl-L-carnitine therapy reduces fatigue in overt hepatic encephalopathy: a randomized, double-blind, placebo-controlled study.
    Malaguarnera M; Vacante M; Giordano M; Pennisi G; Bella R; Rampello L; Malaguarnera M; Li Volti G; Galvano F · The American journal of clinical nutrition · 2011
    Randomized trial121 participantsFitness forL-Carnitine
  11. L-Carnitine's Effect on the Biomarkers of Metabolic Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Choi M; Park S; Lee M · Nutrients · 2021
    Meta-analysis9 studies pooledCardiovascular Support forL-Carnitine
  12. Chronic oral ingestion of L-carnitine and carbohydrate increases muscle carnitine content and alters muscle fuel metabolism during exercise in humans.
    Wall BT; Stephens FB; Constantin-Teodosiu D; Marimuthu K; Macdonald IA; Greenhaff PL · The Journal of physiology · 2012
    Randomized trial14 participantsFitness forL-Carnitine
  13. Effective dosing of L-carnitine in the secondary prevention of cardiovascular disease: a systematic review and meta-analysis.
    Shang R; Sun Z; Li H · BMC cardiovascular disorders · 2015
    Meta-analysis3,108 participants5 studies pooledCardiovascular Support forL-Carnitine
  14. Effects of nine weeks L-Carnitine supplementation on exercise performance, anaerobic power, and exercise-induced oxidative stress in resistance-trained males.
    Koozehchian MS; Daneshfar A; Fallah E; Agha-Alinejad H; Samadi M; Kaviani M; Kaveh B M; Jung YP; Sablouei MH; Moradi N; Earnest CP; Chandler TJ; Kreider RB · Journal of exercise nutrition & biochemistry · 2020
    Randomized trial23 participantsFitness forL-Carnitine
  15. The Effects of L-Carnitine Supplementation on Serum Lipids: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Fathizadeh H; Milajerdi A; Reiner Ž; Kolahdooz F; Chamani M; Amirani E; Asemi Z · Current pharmaceutical design · 2020
    Meta-analysis67 studies pooledCardiovascular Support forL-Carnitine
  16. Propionyl-L-carnitine for intermittent claudication.
    Kamoen V; Vander Stichele R; Campens L; De Bacquer D; Van Bortel L; de Backer TL · The Cochrane database of systematic reviews · 2022
    Meta-analysis1,423 participants12 studies pooledFitness forL-Carnitine
  17. The Effects of L-Carnitine on Echocardiographic Changes in Patients With β-Thalassemia Major and Intermedia.
    Shahidi M; Hashemi SR; Fattahi N; Roshani D; Vahedi S; Sharifi P; Moradveisi B · Journal of pediatric hematology/oncology · 2020
    Randomized trial60 participantsCardiovascular Support forL-Carnitine
  18. Prolonged oral L-carnitine substitution increases bicycle ergometer performance in patients with severe, ischemically induced cardiac insufficiency.
    Löster H; Miehe K; Punzel M; Stiller O; Pankau H; Schauer J · Cardiovascular drugs and therapy · 2000
    Randomized trial41 participantsFitness forL-Carnitine
  19. Associations of circulating choline and its related metabolites with cardiometabolic biomarkers: an international pooled analysis.
    Pan XF; Yang JJ; Shu XO; Moore SC; Palmer ND; Guasch-Ferré M; Herrington DM; Harada S; Eliassen H; Wang TJ; Gerszten RE; Albanes D; Tzoulaki I; Karaman I; Elliott P; Zhu H; Wagenknecht LE; Zheng W; Cai H; Cai Q; Matthews CE; Menni C; Meyer KA; Lipworth LP; Ose J; Fornage M; Ulrich CM; Yu D · The American journal of clinical nutrition · 2021
    Meta-analysis32,853 participants17 studies pooledCardiovascular Support forL-Carnitine
  20. L-carnitine as an ergogenic aid for patients with chronic obstructive pulmonary disease submitted to whole-body and respiratory muscle training programs.
    Borghi-Silva A; Baldissera V; Sampaio LM; Pires-DiLorenzo VA; Jamami M; Demonte A; Marchini JS; Costa D · Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2007
    Randomized trial16 participantsFitness forL-Carnitine
  21. Efficacy and tolerability of combined treatment with L-carnitine and simvastatin in lowering lipoprotein(a) serum levels in patients with type 2 diabetes mellitus.
    Solfrizzi V; Capurso C; Colacicco AM; D'Introno A; Fontana C; Capurso SA; Torres F; Gadaleta AM; Koverech A; Capurso A; Panza F · Atherosclerosis · 2007
    Randomized trial52 participantsCardiovascular Support forL-Carnitine