Lancome Ageless Minerale with White Sapphire Complex is a "perfecting and setting powder". It is the only minerale makeup that I have tried that I actually like. It comes in a .12 ounce jar, with a twist off top. The powder is underneath a plastic covering with small holes. You turn it upside down, a small amount of powder comes out of the holes into the lid, then you take a brush, swirl it around and apply to your face using a light touch. I applied this after I was finished putting on all my other makeup. I was really surprised the first time I used this. It gave my face a glowing appearance. I think perfecting and setting is the perfect description because it did make me feel like my makeup looked more professional. It takes the emphasis off wrinkles and flaws and makes your skin look brighter and more radiant. I think it has something to do with how it reflects light, all I know is it gives my face a nice finished look.