What are hydroxy acids, humectants, and clarifying ingredients all used to treat?

• A. Dry skin
• B. Acne-prone skin
• C. Combination skin
• D. Oily skin

Answer: (D)

Hydroxy acids, humectants, and clarifying ingredients are all aimed at reducing excess oil and keeping pores clear, which is the main reason they’re particularly helpful for oily skin. Hydroxy acids exfoliate chemically, removing the buildup of dead skin cells and oil that can clog pores and create shine. This helps prevent the slick, slick-feel and the formation of comedones that often come with oilier complexions. Humectants attract water into the outer layer of the skin, so the skin stays hydrated without becoming oilier; this balanced hydration reduces the skin’s drive to overproduce sebum. Clarifying ingredients target impurities and excess oil in the pores, helping to purify the surface and reduce shine. Put together, these ingredients manage oil production, keep pores cleaner, and support a mattified, more refined complexion, which is why they’re most associated with treating oily skin.