Acetyl L-Carnitine
Acetyl L-Carnitine (ALCAR) is an amino acid derivative synthesized in the body from lysine and methionine, and is structurally similar to L-carnitine. Its acetyl group allows it to cross the blood-brain barrier more effectively than L-carnitine, making it particularly beneficial for brain health. ALCAR plays a vital role in mitochondrial function, specifically by transporting fatty acids into the mitochondria where they are oxidized for energy production. Beyond its role in energy metabolism, ALCAR is recognized for its neuroprotective and cognitive-enhancing properties. It contributes to the synthesis of acetylcholine, an important neurotransmitter involved in memory and learning. Additionally, ALCAR acts as an antioxidant, helping to protect cells from oxidative damage caused by free radicals, particularly within the brain. Supplementation with ALCAR is often pursued for its potential to support cognitive function, improve mood, and enhance physical performance. It is studied for its benefits in various conditions involving nerve pain, fatigue, and age-related cognitive decline, positioning it as a versatile compound for overall health and well-being.
Red meat (especially beef)Fish (e.g., cod, salmon)PoultryDairy productsAvocadosTempeh
Cheapest Acetyl L-Carnitine Supplements
Discover the most affordable Acetyl L-Carnitine supplements to support anti-aging, boost cognitive function, enhance metabolism, increase energy, and aid in weight management for improved brain health and productivity.
Best Acetyl L-Carnitine Supplements
Explore top Acetyl L-Carnitine supplements to boost energy and metabolism, enhance brain health, mental focus, and cognitive function, supporting anti-aging, weight loss, and overall productivity.
Value Acetyl L-Carnitine supplements
Explore top-rated Acetyl L-Carnitine supplements to support anti-aging, cognitive function, metabolism, energy, weight loss, mental focus, brain health, and productivity.
Minimum500 mg
Maximum1500 mg
Toxicity Threshold4000 mg
Toxicity EffectRestlessness, gastrointestinal discomfort
Impact
High effect
Typical dose:500–1500 mg
This form of L-Carnitine can cross the blood-brain barrier, where it helps transport fatty acids into mitochondria to be burned for energy. This process supports mental energy, reduces mental fatigue, and may improve focus and processing speed, particularly in aging individuals.
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Impact
High effect
Typical dose:500–2000 mg
By facilitating fat metabolism, Acetyl L-Carnitine (ALCAR) enhances energy production. Its acetyl group contributes to the production of acetylcholine, a key neurotransmitter for cognitive function, making it effective for reducing mental fatigue and brain fog.
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Impact
High effect
Typical dose:500–2000 mg
This acetylated form of L-Carnitine can cross the blood-brain barrier, where it helps transport fatty acids into mitochondria for energy production. This enhances mental energy and has been shown to combat age-related cognitive decline and mental fatigue.
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Impact
High effect
Typical dose:500–2000 mg
Acetyl L-Carnitine (ALCAR) is a highly bioavailable form of carnitine. It acts as a shuttle, moving long-chain fatty acids across the mitochondrial membrane where they can be oxidized ('burned') for ATP production. This is particularly beneficial during periods of calorie restriction or exercise.
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Impact
High effect
Acetyl L-Carnitine (ALCAR) crosses the blood-brain barrier to assist in mitochondrial energy production and provides acetyl groups for synthesizing acetylcholine, a neurotransmitter critical for focus, memory, and cognitive speed. It's particularly effective at reducing mental fatigue.
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add_circle_outline Positive Interactions
Alpha-GPC
Both ALCAR and Alpha-GPC contribute to acetylcholine synthesis, a neurotransmitter crucial for memory and learning, potentially enhancing cognitive benefits synergistically.
Coenzyme Q-10
Both ALCAR and Coenzyme Q-10 are vital for mitochondrial function and cellular energy production, offering synergistic support for energy metabolism and antioxidant defense.
Choline
As a precursor to acetylcholine, Choline can work synergistically with ALCAR to support neurotransmitter synthesis and cognitive function.
Creatine
Both ALCAR and Creatine are involved in energy metabolism, particularly within muscle cells, potentially enhancing exercise performance and recovery when used together.
82 Budget 
L-Carnitine 1500 Heat Gummy Bear
VMI Sports Black Series
4.7
★★★★★
(18 ratings)
Acetyl L-Carnitine: 500 mg
This liquid supplement combines a substantial 1500mg of various L-Carnitine forms with thermogenic ingredients like Green Tea and Grains of Paradise, aiming for comprehensive energy and metabolic support.
80 Best 
Acetyl-L-Carnitine Arginate
Life Extension
4.7
★★★★★
(931 ratings)
Acetyl L-Carnitine: 300 mg
A unique blend of Acetyl-L-Carnitine and Acetyl-L-Carnitine Arginate from Life Extension, providing 620mg for enhanced cognitive, energy, and nerve support.
80 Budget 
LEANMODE
Evlution Nutrition
4.3
★★★★★
(21528 ratings)
Acetyl L-Carnitine: 500 mg
This product combines several popular ingredients like green tea, green coffee, and acetyl-L-carnitine into a single supplement, aiming to support metabolism, energy, and overall body composition goals. It provides a broad-spectrum approach for those seeking integrated metabolic assistance.
80 Budget 
Acetyl L-Carnitine & Alpha-Lipoic Acid
Source Naturals
4.6
★★★★★
(1869 ratings)
Acetyl L-Carnitine: 500 mg
A synergistic blend of 500mg Acetyl L-Carnitine and 150mg Alpha-Lipoic Acid, offering enhanced cellular energy, antioxidant, and cognitive support from Source Naturals.
86 Best 
Acetyl L-Carnitine 500 mg
Source Naturals
4.7
★★★★★
(614 ratings)
Acetyl L-Carnitine: 500 mg
A direct Acetyl L-Carnitine supplement, providing a common dosage intended to support cellular energy, metabolism, and brain function.
85 Best 
Acetyl L-Carnitine 500 mg
Source Naturals
4.7
★★★★★
(616 ratings)
Acetyl L-Carnitine: 500 mg
A direct Acetyl L-Carnitine supplement, providing a common dosage intended to support cellular energy, metabolism, and brain function.
85 Budget 
PQQ Energy
NOW
4.7
★★★★★
(1877 ratings)
Acetyl L-Carnitine: 200 mg
NOW PQQ Energy combines PQQ, CoQ10, Acetyl-L-Carnitine, and Methyl B12, providing a broad approach to supporting cellular energy and cognitive well-being.
82 Best 
Acetyl-L-Carnitine 500 mg
The Vitamin Shoppe
4.8
★★★★★
(143 ratings)
Acetyl L-Carnitine: 500 mg
An excellent value Acetyl-L-Carnitine HCl supplement in a large count, providing a standard 500mg dose at an exceptionally low price per serving for long-term use.
88 Value 
7-KETO LeanGels 100 mg
NOW
4.5
★★★★★
(952 ratings)
Acetyl L-Carnitine: 15 mg
This NOW 7-KETO LeanGels product in a 120-count size delivers a blend of metabolism-aiding ingredients like 7-KETO and CLA, alongside Green Tea, Acetyl-L-Carnitine, and Rhodiola that may support energy and cognitive function, all at an excellent per-serving price.
70 Best 
Acetyl L-Carnitine 500 mg
Nature's Way
4.7
★★★★★
(13 ratings)
Acetyl L-Carnitine: 500 mg
A reliable 500mg Acetyl L-Carnitine HCl capsule from Nature's Way, offering a standard dose at a fair price for general cognitive and energy support.
78 Best 
Acetyl L-Carnitine 500 mg
Swanson
4.7
★★★★★
(605 ratings)
Acetyl L-Carnitine: 500 mg
A very cost-effective 500mg Acetyl L-Carnitine HCl capsule from Swanson, popular for general cognitive and energy support with high customer satisfaction.
82 Best 
Acetyl-L-Carnitine
Seeking Health
4.9
★★★★★
(395 ratings)
Acetyl L-Carnitine: 500 mg
A direct Acetyl L-Carnitine supplement, providing a common dosage intended to support cellular energy, metabolism, and brain function.
65 Best 
Acetyl L-Carnitine 250 mg
Source Naturals
5.0
★★★★★
(1 ratings)
Acetyl L-Carnitine: 250 mg
A direct Acetyl L-Carnitine supplement, providing a common dosage intended to support cellular energy, metabolism, and brain function.
80 Best 
Acetyl L-Carnitine 500 mg
Swanson
4.7
★★★★★
(596 ratings)
Acetyl L-Carnitine: 500 mg
A highly economical bulk Acetyl L-Carnitine HCl supplement providing a reliable 500mg dose per capsule, popular for long-term cognitive and energy support.
72 Budget 
Healthy Fat Burner
Terra Origin
4.6
★★★★★
(1576 ratings)
Acetyl L-Carnitine: 500 mg
This 'fat burner' offers a comprehensive blend of stimulants and metabolic support ingredients, primarily aimed at boosting energy, focus, and assisting with weight management efforts.
88 Best 
Acetyl-L-Carnitine 500 mg
California Gold Nutrition
4.7
★★★★★
(3326 ratings)
Acetyl L-Carnitine: 500 mg
A direct Acetyl L-Carnitine supplement, providing a common dosage intended to support cellular energy, metabolism, and brain function.
Average$43.19
Median$35.99
Average$1.16
Median$1.03