I have combination/acne prone skin that tends to get sensitive from time to time. Staub is a powder mask that needs to be activated by water or a hydrosol. It then fluffs up to a red mousse that is easy to apply. I let the mask sit until it’s dry and then remove it with warm water. I use this mask when I have blemishes or when I really want to clear my skin. It’s so good for that and I can notice a real difference after I’ve used it. Acne is less, skin is bright and there is a noticable improvement in blood flow. Highly recommend as for it is one of the most powerful masks.