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Acetyl L-Carnitine 500 mg

Source Naturals
4.7
★ ★ ★ ★ ★
(623 ratings)
Acetyl L-Carnitine 500 mg
Product Image
Score95

A 120-day supply of 500 mg ALCAR in tablet form for brain health and metabolic support.

How scoring works
Quantity:120 Tablet(s) • (120 servings)
Goals:
Anti-Aging
Energy
Brain Health
Productivity Boost
Metabolism Boost
Mental Focus
Cognitive Support
Weight Loss

Score 95

A 120-day supply of 500 mg ALCAR in tablet form for brain health and metabolic support.

How scoring works

Also available as

1 option
60 servings Acetyl L-Carnitine 500 mg • 60 Tablet(s) • 60 servings $12.03 ($0.20 per serving)
$25.43($0.21 per serving)
Pure Formulas
$ 24.85
Amazon
$ 25.43
Vitacost
$ 28.16
iHerb
$ 23.83
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Analysis

This supplement provides 500 mg of Acetyl-L-Carnitine HCl in a stable tablet format. ALCAR is used to support brain energy and the transport of fatty acids for metabolic fuel. The 120-count bottle offers a full four-month supply, making it a very practical choice for daily focus support.

It fits best for individuals who find tablets easier to manage than capsules or want a longer-term supply. The formula is focused solely on the carnitine derivative, ensuring a pure dose for mitochondrial health. It is a reliable and straightforward option for supporting mental alertness.

Pros

  • Practical 4-month supply
  • Stable tablet format
  • Supports focus and brain energy
  • Clean, single-ingredient formula

Cons

  • Tablets can be harder for some to swallow
  • HCl form is basic

Warnings

  • Take on an empty stomach for maximum effect
  • Maintain adequate hydration throughout the day

Nutrient quality

92 Highest impact

Utilizing the HCl salt form ensures stability and consistent biological availability of the active molecule. A 500mg dose provides a clinically relevant amount for supporting mental focus and cellular energy.

Ingredient transparency

99 Highest impact

Labeling is highly transparent, stating the exact amount and form of the active ingredient clearly on the supplement facts panel. Usage directions and inactive ingredient lists are straightforward and professional.

Customer satisfaction

94 Highest impact

Strong user ratings and a significant review count confirm that the product reliably supports energy and focus. Feedback consistently reflects satisfaction with the quality and results of the supplement for cognitive goals.

Value for money

94 Highest impact

The cost per serving is low for a 120-count container providing a clinical dose. This offering provides a very sustainable and cost-effective approach for individuals seeking daily support.

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Goals

Anti-Aging
Impact
Highest effect
A+ Goal FitA+ Strength of SupportC CoverageA+ Formula Quality

Acetyl L-carnitine 500 mg provides focused support for mitochondrial energy production and cognitive preservation. This ingredient assists in addressing age-related decline in cellular metabolism and neurotransmitter levels.

It appears well aligned for individuals seeking neurological and metabolic healthspan support. The acetylated form is specifically utilized for its ability to support the brain and cross the blood-brain barrier.

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Energy
Impact
Highest effect
A+ Goal FitA Strength of SupportB CoverageA+ Formula Quality

This single-ingredient supplement delivers acetyl L-carnitine to facilitate the transport of fatty acids into the mitochondria for ATP production. This mechanism is essential for providing fuel to both cardiac and skeletal muscles, as well as supporting cognitive focus.

A 500mg dose appears well-aligned with researched levels for contributing to cellular metabolism and alertness. By focusing exclusively on this amino acid derivative, the formulation provides a high-potency and functional dose without the dilution of multi-ingredient blends.

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Brain Health
Impact
Highest effect
A+ Goal FitA Strength of SupportB- CoverageA+ Formula Quality

Acetyl L-Carnitine supports brain health by enhancing cerebral energy metabolism and acting as a precursor to acetylcholine. This highly bioavailable form of carnitine appears well suited for goals related to mental focus and neuroprotection.

Clinically effective dose of 500mg in a single tablet ensures high utility for daily cognitive enhancement. Hydrochloride salt form ensures high stability and reliable absorption of the active molecule.

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Productivity Boost
Impact
Highest effect
A Goal FitA+ Strength of SupportC CoverageA+ Formula Quality

Acetyl L-Carnitine (ALCAR) is a specialized amino acid that supports cellular energy production and neurological health by crossing the blood-brain barrier. It appears well aligned with promoting mental clarity and alertness through the support of mitochondrial function.

A 500mg dose is clinically relevant and provides foundational support for brain energy metabolism. This targeted approach is helpful for maintaining the cognitive stamina required for consistent productivity throughout the day.

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Metabolism Boost
Impact
Highest effect
A Goal FitA+ Strength of SupportC CoverageA+ Formula Quality

Acetyl L-Carnitine HCl facilitates metabolic goals by supporting the transport of fatty acids into mitochondria for energy conversion. This acetylated form is particularly effective for cellular energy precursors and has robust evidence for metabolic efficiency.

The 500mg dosage is a meaningful clinical amount that provides good depth for the mitochondrial pathway. While functional breadth is limited to carnitine-mediated mechanisms, the formula offers high-quality support for fatty acid utilization.

View goal →
Mental Focus
Impact
Highest effect
A Goal FitA Strength of SupportC CoverageA+ Formula Quality

Acetyl L-Carnitine (ALCAR) is a specialized form of carnitine that efficiently crosses the blood-brain barrier to support mitochondrial energy and neurotransmitter synthesis. This 500 mg dose appears well aligned with the levels used in research for improving mental energy and focus.

By providing carnitine in its acetylated form, the formula ensures it can directly impact brain metabolism. The single-ingredient tablet format provides a focused and clinically relevant approach for those seeking cognitive enhancement.

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Ingredients

IngredientAmount per serving
Acetyl L-Carnitine HCl
500 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Vegetarian
Report overview
Acetyl L-Carnitine · 500 mg OverallScore98
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
This tablet supplement provides a standard and clinically effective amount of acetyl l-carnitine hydrochloride. It is an affordable and reliable option for those wanting to support cellular energy production and neurological health.
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Acetyl L-Carnitine 500 mg

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Acetyl L-Carnitine & Alpha-Lipoic Acid

Source Naturals
4.6
★★★★★
(1886 ratings)
Adding alpha-lipoic acid creates a synergistic effect that enhances mitochondrial energy transport and provides antioxidant protection. This dual-ingredient supplement offers significantly more value for metabolic and aging goals.
Other sellers (2)
94 Value

Acetyl-L-Carnitine 500 mg

California Gold Nutrition
4.7
★★★★★
(3377 ratings)
Offering a high-quality, bioavailable source of carnitine in a clean capsule format supports mental focus and energy. It represents a sensible balance of quality manufacturing and affordability for consistent brain health maintenance.
Other sellers (0)
93 Value

Acetyl-L-Carnitine

Seeking Health
4.9
★★★★★
(410 ratings)
Prioritizing high-purity ingredients and transparent sourcing, this capsule formula supports the brain's energy needs effectively. It provides a clean, single-ingredient profile that is well-aligned with goals for focus and productivity.
Other sellers (1)
95 Performance

Optimized Carnitine

Life Extension
4.8
★★★★★
(1151 ratings)
Incorporating three specialized forms of carnitine, such as arginate and propionyl versions, provides broader support for neurological and muscle health. This complex delivers a higher total carnitine load for more intensive cellular energy support.
Other sellers (3)
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RegenerLife Watermelon

Natural Factors
4.8
★★★★★
(437 ratings)
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Other sellers (1)
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Acetyl-L-Carnitine Arginate

Life Extension
4.7
★★★★★
(938 ratings)
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Other sellers (4)
Report alternatives