Which type of acid is commonly used for exfoliation in esthetics?

Lactic acid is commonly used for exfoliation in esthetics due to its alpha hydroxy acid (AHA) properties, which make it effective for skin rejuvenation and shedding dead skin cells. This exfoliating action helps to improve skin texture, brighten the complexion, and minimize the appearance of fine lines and wrinkles. Its hydrating properties also make it beneficial for maintaining moisture levels in the skin while promoting cell turnover, which is particularly important in esthetic treatments.

In contrast, ascorbic acid, primarily known for its antioxidant properties, is mainly used for brightening the skin and combating oxidative stress rather than exfoliation. Citric acid, while also an AHA, is more commonly associated with its use in chemical peels and may not be as gentle or effective for all skin types as lactic acid. Acetic acid, on the other hand, is more associated with its use in vinegar and household cleaning and does not have the same exfoliating properties as lactic acid. Therefore, lactic acid stands out for its specific efficacy and gentle nature in the context of exfoliation within esthetics.