Just as a cosmetic, this product is not absorbed into the skin, so it doesn't clog the pores, but as a cosmetic value, it stays on all day until you wash it off, and by the way, it can be washed off with the most gentle cleanser and, because it's all rock, it goes right back into the earth, so those of you that are concerned about green and going back into the earth, this product goes right back into the earth and washes over the most gentle cleanser, yet stays on all day. 