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Description
Doctors Best - Acetyl-L-Carnitine (500mg) 60 capsProduct Description Doctor's Best Acetyl L Carnitine with BIOSINT 500mg VegeCaps 60 Acetyl L Carnitine (ALC) is a naturally occurring form of L Carnitine, a vitamin like nutrient synthesized in the body from the amino acids lysine and methionine. ALC plays a key role in the production of acetylcholine, an important neurotransmitter for brain and nerve cell function. Benefits Supports cognitive function, improved memory and mental alertness Key role in
Product Description
Doctor's Best - Acetyl L-Carnitine with BIOSINT 500mg VegeCaps 60
Acetyl-L-Carnitine (ALC) is a naturally occurring form of L-Carnitine, a vitamin-like nutrient synthesized in the body from the amino acids lysine and methionine. ALC plays a key role in the production of acetylcholine, an important neurotransmitter for brain and nerve cell function.
Benefits
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Supports cognitive function, improved memory and mental alertness
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Key role in production of Acetylcholine (key neurotransmitter for brain and nerve function)
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Support for energy metabolism in the brain
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Supports healthy membrane structure in brain cells
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Support for senile dementia, Alzheimers, depression
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Helps decrease free radical production in the brain
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Helps keep nerves healthy and in repair
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How does Acetyl-L-Carnitine work?
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ALC works in a similar way to L-Carnitine (both are fat carriers), but ALC carries the ‘Acetyl’ portion directly to the mitochondria (powerhouse of the cell) to produce ATP. ALC also crosses the blood –brain barrier (L-Carnitine does not) where it has specific benefits for brain neurons.
Supports cognitive function
ALC is structurally similar to acetylcholine - the most abundant neurotransmitter in the brain – important for brain and nerve cell function. Research has shown that brain neurons stimulated by acetylcholine are receptive to stimulation by ALC.
ALC is structurally similar to acetylcholine - the most abundant neurotransmitter in the brain – important for brain and nerve cell function. Research has shown that brain neurons stimulated by acetylcholine are receptive to stimulation by ALC.
Supports brain energy
The acetyl groups donated by ALC are used to produce energy in the cell. This is of particular benefit for organs that require high-energy inputs, such as the brain and heart. Many studies have shown that ALC helps to support healthy mitochondrial function and promote healthy membrane structure in neuronal membranes.
The acetyl groups donated by ALC are used to produce energy in the cell. This is of particular benefit for organs that require high-energy inputs, such as the brain and heart. Many studies have shown that ALC helps to support healthy mitochondrial function and promote healthy membrane structure in neuronal membranes.
Supports nerve growth factor
The body produces specialized proteins called growth factors that are essential to growth and repair of tissue. Nerve Growth Factor (NGF) prolongs the survival of neurons in the central and peripheral nervous systems.
The body produces specialized proteins called growth factors that are essential to growth and repair of tissue. Nerve Growth Factor (NGF) prolongs the survival of neurons in the central and peripheral nervous systems.
Ageing
Studies have shown that ALC may help brain neurons face the ageing process optimally by decreasing free radical production in the brain.
Studies have shown that ALC may help brain neurons face the ageing process optimally by decreasing free radical production in the brain.
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Active Ingredients
Ingredients: (Per capsule)
Acetyl-L-Carnitine 1000mg (from BIOSINT Acetyl-L-carnitine HCL) Other Ingredients
Magnesium Silicate, micro-crystalline cellulose, modified cellulose (vegetarian capsule), silicon dioxide, stearic acid
Non-GMO / Gluten Free / Vegan
Directions
Adults: 2 capsules daily with food. For additional benefit take 4 capsules per day, or more, as recommended by a nutritionally-informed physician
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4.8 ★★★★★
Based on 1644 reviews
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Product Reviews
★★★★★ 5
Serta Pillows
Style: Side Sleeper, Pattern Name: King
They’re very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025
★★★★★ 3
Great quality but big
Style: Side Sleeper, Pattern Name: King
These pillows seem to be very good quality. I couldn’t wait to try them. I soon realized that they’re very thick & too high for my neck. I can push the pillow down but it doesn’t stay so I’d say they’re too firm for me & don’t support the neck properly because of the height.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2025
★★★★★ 5
my fav now after using 50+ pillows
Style: Back Sleeper, Pattern Name: King
I have always struggled to find the perfect pillow, and so far I have had 50+ pillows. Personally, I like my pillow to be on thinner side as I look for more support for my neck.
This is my first time buying pillows online, because I like to physically touch and feel the firmness and thickness before I purchase my pillows. I am so glad I did it! These pillows are just PERFECT for me! Perfect firmness, perfect thickness and perfect material.
One thing I suggest is that be extra cautious when you open the package. These pillows were rolled and put in a relatively thin shipping bag, so when you open with sharp objects be careful not to cut your new favorite pillows!
I let the pillows sit for about 48 hours before I started using them, but I assume you don't have to wait that long.
Overall, I am very happy with my first online pillow purchase with Serta!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2020
★★★★★ 2
Not worth it
Style: Side Sleeper, Pattern Name: King
Feel nice and fluffy for couple months, then go flat
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Reviewed in the United States on September 5, 2025
★★★★★ 1
14% polyester filling
Style: Side Sleeper, Pattern Name: Jumbo
It has 14% polyester filling. The description is not complete in amazon.
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Reviewed in the United States on January 5, 2026
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