"Smart" technology keeps dry areas comfortable and oily areas less shiny. No-waste grinder dispenses skin-defending vitamins with each twist. Fresh-shaved mineral powder clings evenly to skin. Lasts for up to 8 long hours. Includes antibacterial brush. How to use Turn grinder clockwise stopping at first mark to release enough fresh powder for a full-face application. Dip brush into powder and tap gently to remove excess. Sweep over face to desired coverage. One click is enough for full-face application.