A facial mask, also known as a face mask or skincare mask, is a beauty product or treatment that is applied to the face to address various skin concerns and improve the overall health and appearance of the skin. There are different types of facial masks available, each designed for specific purposes:

1. Clay Masks: These masks are formulated with clay or mud, such as kaolin or bentonite, and are excellent for deep cleansing and oil absorption. They help to unclog pores, remove excess oil, and can be especially beneficial for people with oily or acne-prone skin.
2. Sheet Masks: Sheet masks are pre-soaked fabric masks that are usually made of materials like cotton or hydrogel. They are saturated with serums or essences containing various ingredients like vitamins, hyaluronic acid, and botanical extracts. Sheet masks are facial mask designed to provide hydration and nourishment to the skin.
3. Peel-Off Masks: Peel-off masks start as a liquid or gel and dry to a rubbery texture that can be peeled off the skin. They are often used for exfoliation and can help remove dead skin cells, blackheads, and impurities from the skin's surface.
4. Cream Masks: Cream masks are thick, creamy formulations that are rich in moisturizing ingredients. They are ideal for dry or dehydrated skin and provide intense hydration and nourishment.
5. Gel Masks: Gel masks have a jelly-like consistency and are known for their cooling and soothing properties. They are often used to calm irritated or sunburned skin.
6. Exfoliating Masks: These masks contain exfoliating agents like alpha hydroxy acids (AHAs) or beta hydroxy acids (BHAs) to remove dead skin cells and promote a smoother complexion. They are beneficial for improving skin texture and reducing the appearance of fine lines and wrinkles.
7. Charcoal Masks: Charcoal masks contain activated charcoal, which is known for its ability to draw out impurities, toxins, and excess oil from the skin. They are often used for deep cleansing and detoxifying the skin.
8. Hydrogel Masks: Hydrogel masks are similar to sheet masks but are made from a gel-like material that adheres closely to the skin. They are designed to lock in moisture and deliver active ingredients effectively.

Facial masks are typically applied to clean skin and left on for a specified period, usually ranging from 10 to 30 minutes, depending on the type of mask. Afterward, they are either rinsed off or peeled away, leaving the skin refreshed and rejuvenated. It's important to choose a facial mask that suits your skin type and addresses your specific skincare concerns to achieve the best results. Additionally, it's recommended to use facial masks as part of a regular skincare routine rather than as a daily treatment.