Masks are intensive treatments applied to the skin to address specific concerns and provide targeted benefits. They come in various forms such as clay, sheet, gel, or cream masks. Formulated with ingredients like antioxidants, hydration boosters, or exfoliants, masks can help cleanse, nourish, brighten, or soothe the skin. Regular use can enhance the complexion and offer a spa-like experience. It's important to choose masks suitable for one's skin type and concern to achieve optimal results.