Louisiana Esthetics State Board Practice Test 2026 – All-In-One Guide to Master Your Exam Success!

Salicylic acid is commonly used in products formulated for oily skin due to its unique properties. As a beta-hydroxy acid (BHA), it has the ability to penetrate deep into the pores, helping to exfoliate the skin and dissolve excess sebum, which is particularly beneficial for individuals with oily or acne-prone skin. By clearing away dead skin cells and impurities that can clog pores, salicylic acid aids in preventing breakouts and improving overall skin texture.

In contrast, glycolic acid, while also beneficial for exfoliation, is an alpha-hydroxy acid (AHA) that primarily works on the skin's surface rather than addressing the deeper issues associated with oily skin. Hyaluronic acid is known for its hydrating properties and is typically used in products aimed at dry or dehydrated skin rather than oily skin. Ceramides help restore the skin's barrier and retain moisture, but they do not target the oiliness or acne concerns specific to oily skin. Thus, salicylic acid is the most appropriate choice for treating oily skin types.