Wisconsin Esthetics State Board Practice Test 2025 – Comprehensive Exam Prep

Salicylic acid is a beta hydroxy acid (BHA) that is widely used in skincare products, particularly for treating acne and other skin conditions. Its primary distinction from other acids is its ability to penetrate oil and exfoliate from within the pores, making it especially effective for oily and acne-prone skin. Salicylic acid helps to clear out blocked pores, reduce inflammation, and promote a smoother skin texture.

In contrast, the other acids listed are primarily alpha hydroxy acids (AHAs), which are more effective for exfoliating the surface of the skin rather than penetrating deeply into the pores. Glycolic acid, lactic acid, and citric acid are known for their exfoliating properties but are mainly used to improve the surface texture and hydration of the skin, making them less effective for treating deeper issues associated with acne compared to salicylic acid. This specialized action makes salicylic acid a go-to ingredient in acne treatment regimens.