Apply the mask generously to the entire face ( Oily) or only to the T-zone (combination skin). Leave on for 10 to 15 minutes. As soon as the dark grey appears light grey, it is time to rinse with warm water, gently massaging the face to take advantage of the mask's exfoliating properties. Finish by rinsing thoroughly with water. If your skin is sensitive, it is advisable to rinse as soon as the sensation of "skin tension" becomes strong.