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Optimized Carnitine

Life Extension
4.8
(1074 ratings)
Acetyl-L-Carnitine 300 mg
Acetyl L-Carnitine 800 mg
Product Image
Score 85.0

Life Extension's Optimized Carnitine offers a potent multi-form L-Carnitine blend aimed at enhancing brain health, energy, and metabolism, backed by a reputable brand and positive reviews.

Quantity: 60 Capsule(s)Servings size: 2 Vegetarian Capsule(s) (30 servings)
Selected goals:
Other goals:
Testosterone Support
Brain Health
Energy
Cognitive Support
Mental Focus

Score 85.0

Life Extension's Optimized Carnitine offers a potent multi-form L-Carnitine blend aimed at enhancing brain health, energy, and metabolism, backed by a reputable brand and positive reviews.

Analysis

Optimized Carnitine by Life Extension is a comprehensive L-Carnitine supplement designed to support a wide array of health goals, primarily focusing on brain function, energy metabolism, and athletic performance. Its unique blend of Acetyl L-Carnitine HCl, Acetyl L-Carnitine Arginate Di-HCl, and Glycine Propionyl L-Carnitine HCl provides a synergistic effect targeting different physiological pathways for enhanced mitochondrial function and energy production. While well-regarded by consumers and nutritionists for its brain and energy benefits, the efficacy for some ambitious claims like direct 'Testosterone Support' is more indirect through improved energy and exercise rather than direct hormonal modulation, as current research primarily supports its role in fatty acid metabolism and neural health.

Pros
  • Contains multiple bioavailable forms of L-Carnitine (ALCAR, GPLC, ALCAR-Arginate) for comprehensive benefits.
  • Provides a good overall dosage (1400mg total L-Carnitine forms per serving) to support various physiological functions.
  • Manufactured by Life Extension, a well-regarded and trusted brand in the supplement industry.
  • Boasts a high number of positive customer reviews, indicating general user satisfaction.
Cons
  • The price per serving is relatively high compared to simpler, single-form Acetyl L-Carnitine products.
  • Claims like 'Testosterone Support' are often more indirect effects of improved energy and exercise rather than direct, significant hormonal boosting from L-Carnitine itself.
Warnings
  • Individuals on blood thinners or with thyroid conditions should consult a healthcare professional before use, as L-Carnitine may interact with certain medications or conditions.
$23.25($0.77 per serving)
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Ingredients
IngredientAmount per serving
Acetyl L-Carnitine HCl 800 mg
Acetyl L-Carnitine Arginate Di-HCl 300 mg
Glycine Propionyl L-Carnitine HCl 300 mg
Adults 18–50
Categories
Acetyl L-Carnitine 88.0
The product contains a substantial dose of Acetyl L-Carnitine (800mg ALCAR HCl plus additional ALCAR-Arginate), which is a highly effective and well-researched form for cognitive and energy benefits within this category.
Acetyl-L-Carnitine 88.0
This product features a diverse range of Acetyl-L-Carnitine derivatives at clinically relevant dosages, enhancing its overall effectiveness for brain health and energy metabolism, making it a strong contender in the Acetyl-L-Carnitine collection.
Goals
Brain Health 90.0
Acetyl L-Carnitine is highly bioavailable to the brain, supporting neurotransmitter synthesis and playing a crucial role in mitochondrial energy production within brain cells, which directly enhances neural health and function.
Energy 90.0
The various forms of L-Carnitine are essential for transporting fatty acids into mitochondria, where they are converted into ATP, thereby facilitating cellular energy production throughout the body and reducing fatigue.
Cognitive Support 90.0
The Acetyl L-Carnitine content directly supports mitochondrial function and neurotransmitter synthesis in the brain, which are critical processes for overall cognitive performance, memory retention, and learning capacity.
88 Value

Acetyl L-Carnitine & Alpha-Lipoic Acid

Source Naturals
4.6
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This product offers a beneficial combination of 500mg Acetyl L-Carnitine and 150mg Alpha-Lipoic Acid at a reasonable price of $0.32 per serving, providing synergistic effects for mitochondrial health and antioxidant support that aligns well with the original product's goals for a better cost-to-benefit ratio.
87 Value

Acetyl-L-Carnitine Arginate

Life Extension
4.7
(826 ratings)
From the same reputable brand, this alternative provides 620mg of a specialized L-Carnitine form (Acetyl-L-Carnitine Arginate and Acetyl-L-Carnitine HCl) per serving for $0.31, offering targeted benefits for vasodilation and neuroprotection at a significantly lower cost than the 'Optimized' blend.
90 Value

PQQ Energy

NOW
4.6
(1785 ratings)
Although containing a lower ALCAR dose (200mg), this product is an outstanding value at $0.53 per serving for cellular energy and neuroprotection due to its synergistic blend with PQQ, CoQ10, and Vitamin B12, offering a more targeted and comprehensive 'energy' and 'brain health' profile than pure carnitine.
95 Performance

Brain Cell Support

Metabolic Maintenance
4.7
(233 ratings)
Designed for comprehensive brain health, this product combines Acetyl L-Carnitine (500mg) with other highly researched nootropics like Cognizin, Ginkgo Biloba, and Phosphatidylserine, offering a broader and potentially more profound impact on cognitive goals.
96 Performance

Memory Pro

Pure Encapsulations
4.3
(20 ratings)
A premium formulation featuring a high dose of Acetyl-L-Carnitine (750mg) combined with clinically relevant amounts of synergistic ingredients such as Ginkgo, Phosphatidylserine, Bacopa, and Curcumin, targeting multiple pathways for advanced memory and cognitive function.
92 Performance

Neuro Optimizer

Jarrow Formulas
4.6
(4516 ratings)
This well-regarded blend features a significant 500mg of Acetyl-L-Carnitine alongside key brain nutrients like Citicoline (CDP-Choline), Phosphatidylserine, and Taurine, offering a multi-faceted approach to neuroprotection, focus, and overall cognitive optimization.
85 Budget

Acetyl L-Carnitine 500 mg

Swanson
4.7
(520 ratings)
This product offers a standard 500mg dose of pure Acetyl L-Carnitine HCl at a remarkably low price of $0.12 per serving, making it an excellent budget-friendly choice for core cognitive and energy benefits.
90 Budget

Acetyl L-Carnitine Alpha Lipoic Acid

Best Naturals
4.7
(258 ratings)
This alternative combines 525mg of Acetyl L-Carnitine with 225mg of Alpha Lipoic Acid for just $0.14 per serving, providing synergistic antioxidant and mitochondrial support at an exceptional value.
92 Budget

Acetyl-L Carnitine

NutraKey
4.8
(20 ratings)
Providing a robust 1000mg dose of Acetyl-L-Carnitine per serving for only $0.19, this option offers higher potency for core ALCAR benefits at a fraction of the original product's cost.
88 Value

Acetyl L-Carnitine & Alpha-Lipoic Acid

Source Naturals
4.6
(1770 ratings)
This product offers a beneficial combination of 500mg Acetyl L-Carnitine and 150mg Alpha-Lipoic Acid at a reasonable price of $0.32 per serving, providing synergistic effects for mitochondrial health and antioxidant support that aligns well with the original product's goals for a better cost-to-benefit ratio.
87 Value

Acetyl-L-Carnitine Arginate

Life Extension
4.7
(826 ratings)
From the same reputable brand, this alternative provides 620mg of a specialized L-Carnitine form (Acetyl-L-Carnitine Arginate and Acetyl-L-Carnitine HCl) per serving for $0.31, offering targeted benefits for vasodilation and neuroprotection at a significantly lower cost than the 'Optimized' blend.
90 Value

PQQ Energy

NOW
4.6
(1785 ratings)
Although containing a lower ALCAR dose (200mg), this product is an outstanding value at $0.53 per serving for cellular energy and neuroprotection due to its synergistic blend with PQQ, CoQ10, and Vitamin B12, offering a more targeted and comprehensive 'energy' and 'brain health' profile than pure carnitine.
95 Performance

Brain Cell Support

Metabolic Maintenance
4.7
(233 ratings)
Designed for comprehensive brain health, this product combines Acetyl L-Carnitine (500mg) with other highly researched nootropics like Cognizin, Ginkgo Biloba, and Phosphatidylserine, offering a broader and potentially more profound impact on cognitive goals.
96 Performance

Memory Pro

Pure Encapsulations
4.3
(20 ratings)
A premium formulation featuring a high dose of Acetyl-L-Carnitine (750mg) combined with clinically relevant amounts of synergistic ingredients such as Ginkgo, Phosphatidylserine, Bacopa, and Curcumin, targeting multiple pathways for advanced memory and cognitive function.
92 Performance

Neuro Optimizer

Jarrow Formulas
4.6
(4516 ratings)
This well-regarded blend features a significant 500mg of Acetyl-L-Carnitine alongside key brain nutrients like Citicoline (CDP-Choline), Phosphatidylserine, and Taurine, offering a multi-faceted approach to neuroprotection, focus, and overall cognitive optimization.