The Sephora Hero Mask - The Peeling Face Mask contains a combination of active ingredients designed to exfoliate and renew the skin. The key ingredient in this mask is glycolic acid, a type of alpha hydroxy acid (AHA) known for its exfoliating properties. Glycolic acid works by breaking down the bonds between skin cells, allowing for the removal of dead skin cells and promoting cellular turnover. This process helps to improve skin texture, tone, and overall radiance. In addition to glycolic acid, the mask also contains lactic acid, another AHA that assists in the exfoliation process. Lactic acid helps to hydrate the skin while exfoliating, making it suitable for those with sensitive or dry skin. Together, these AHAs work synergistically to gently remove dead skin cells, unclog pores, and promote a more youthful appearance. The SEPHORA Sephora Hero Mask also includes soothing and hydrating ingredients such as aloe vera and hyaluronic acid. Aloe vera helps to calm the skin and reduce inflammation, while hyaluronic acid attracts and retains moisture, enhancing the skin's hydration levels. These ingredients help to balance the exfoliating effects of the AHAs, ensuring that the skin remains hydrated and nourished after use. Upon application, the mask has a slightly acidic pH, which is optimal for exfoliation and skin renewal.