Perfection Lumiere Velvet is labelled as a "lightweight, second skin foundation" which will smooth and even out the complexion. It definitely is uber lightweight, you won't feel it on your skin and it doesn't look heavy or cakey at all once applied. I wear the shade B20, which is the third lightest. B10 was practically invisible on my complexion. Anyway, the formula smoothes out the skin, masking pores, redness and also uneven skintone. It is quite sheer so sometimes I apply an extra layer to areas that need a little bit more coverage. The finish itself looks super flawless and my combination skin loves it. The matte quality does wear off as the day goes on but things definitely look a lot less sheeny than usual. I'm also using a lot less powder to touch up as well. Score! Application-wise Chanel recommend you use your fingers to blend this in. I do like that method but I still find myself using my Real Techniques Buffing Brush to apply this.