Arganour Powder Clay Mask. Powdered natural volcanic clay face mask, which comes from the volcanic lava of the Atlas Mountains in Morocco. Ghassoul clay is rich in minerals such as calcium, iron, magnesium, silica and potassium, in addition to having a high purifying, absorbent and astringent power. Absorbs excess fat and prevents acne from appearing, as well as helping to stop problems like eczema. It can be used on the scalp to avoid dandruff. To apply pour a tablespoon into a non-metallic container, add a tablespoon of water, stir with a wooden spoon until a creamy texture is obtained, spread it on the face, avoiding the eye area, leave on and remove with lukewarm water.