Acetyl Carnitine HCL
INCI: Acetyl-L-Carnitine
Reviewed by Rosie · Last updated 14 Aug 2026
Also known as: Acetyl-L-Carnitine, ALCAR, O-Acetyl-L-carnitine hydrochloride
Derivative of the amino acid L-carnitine Functions as a potent antioxidant
Best For Skin Types
All skin types
Usage Frequency
As directed on product packaging
EWG Safety Score
What Is Acetyl Carnitine HCL?
Acetyl Carnitine HCL is a derivative of the amino acid L-carnitine, naturally found in the body. In skincare, it functions as a powerful antioxidant, helping to protect the skin from environmental stressors and free radical damage. Its skin-restoring properties are beneficial for improving the overall appearance of the skin, including texture and tone. It also plays a role in cellular energy metabolism, which can contribute to a healthier, more vital-looking complexion. The "BEST" rating from indicates that it is a well-researched and highly effective ingredient for most skin types and concerns. This information is synthesized based on the static data extracted from the website and general scientific consensus, as the full dynamic content failed to load.
Clinical Evidence & References
Published Research
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Acetyl-L-carnitine: Antioxidant and neuroprotective effects Ann N Y Acad Sci, 2000
Frequently Asked Questions
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Acetyl Cysteine
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Acetyl Glucosamine
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Acetyl Methionine
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