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What are alpha-hydroxy acids (AHAs)?

ANSWER

This group includes glycolic, lactic, citric, and tartaric acids. They're in many products.

They exfoliate the skin, easing fine lines, age spots, acne scars, and uneven skin color.

You can get peels with high concentrations of AHAs from a beauty specialist (esthetician) or dermatologist, but you can use lower concentrations -- between 5% and 10% -- in creams or lotions every day.

SOURCES:

National Center for Complementary and Integrative Health: “Acai.”

Marilyn Berzin, MD, dermatologist, DC Derm Docs, Washington, DC.

Hoppe, U. Biofactors, 1999.

Blatt, T. European Journal of Geriatrics, 1999.

University of Maryland Medical Center: ''Alpha-lipoic acid.''

Kawasumi, M. Proceedings of the National Academy of Sciences, August 16, 2011.

Kaczvinsky, J. Journal of Cosmetic Dermatology, September, 2009.

Blatt T. Zeitschrift für Gerontologie und Geriatrie, April 1999.

Reviewed by Debra Jaliman on August 27, 2019

SOURCES:

National Center for Complementary and Integrative Health: “Acai.”

Marilyn Berzin, MD, dermatologist, DC Derm Docs, Washington, DC.

Hoppe, U. Biofactors, 1999.

Blatt, T. European Journal of Geriatrics, 1999.

University of Maryland Medical Center: ''Alpha-lipoic acid.''

Kawasumi, M. Proceedings of the National Academy of Sciences, August 16, 2011.

Kaczvinsky, J. Journal of Cosmetic Dermatology, September, 2009.

Blatt T. Zeitschrift für Gerontologie und Geriatrie, April 1999.

Reviewed by Debra Jaliman on August 27, 2019

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