Kaolin and bentonite are the most common clays used in pore-clearing masks. Other varieties such as pink (rose) clay and hectorite also appear in some formulas.
Descriptions commonly say clays absorb excess oil, draw out impurities from pores, and help reduce shine and blackheads to leave skin feeling cleansed.
Most pore-focused masks list oily, combination, normal, and acne-prone skin as suitable. Some formulations also note compatibility with mature or sensitive skin depending on their other ingredients.
Recommendations vary by product: some clay steps are left on for only a few minutes (around 3 minutes) and can be used up to three times per week, while rinse-off mud masks are often kept for up to 10 minutes and used weekly or as needed. Always follow the specific product instructions.
Reviews commonly report reduced oiliness, visibly smaller or clearer pores, and smoother-feeling skin after single uses or regular application.
Most product details advise rinsing the mask off, then applying a soothing or hydrating product—such as a moisturizer or cooling gel—to restore moisture. Some also suggest removing the mask with a damp cloth as an alternative before moisturizing.