Wisconsin Esthetics State Board Practice Test

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Study for the Wisconsin Esthetics State Board Test. Use flashcards and multiple choice questions with hints and explanations. Prepare for your licensing exam more effectively!

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Which of the following is a commonly used AHA?

Salicylic acid
Glycolic acid
Beta hydroxy acid
Acetic acid

The correct answer is: Glycolic acid

Glycolic acid is widely regarded as a commonly used alpha hydroxy acid (AHA). AHAs are a group of water-soluble acids that are primarily derived from fruits and are well-known for their exfoliating properties, which help to remove dead skin cells and improve skin texture and tone. Glycolic acid, in particular, is favored for its small molecular size, allowing it to penetrate the skin effectively. This makes it ideal for use in various skincare products aimed at addressing issues such as dullness, uneven texture, and signs of aging. Salicylic acid, although effective in skincare, is classified as a beta hydroxy acid (BHA), which is more oil-soluble and primarily used for acne treatment due to its ability to penetrate oil-laden follicles. Beta hydroxy acid refers to a category and does not specify a particular compound used as an AHA. Acetic acid, on the other hand, is not typically used in esthetic treatments for skincare; it is more commonly known as a component of vinegar. Thus, glycolic acid stands out clearly as a notable AHA commonly incorporated in various cosmetic and dermatological applications.