I can honestly say there was an immediate mattifying effect on my oily areas - with a bit of a "tightening" feel. This matte effect did not budge at all as I applied the rest of my makeup. It's like this primer literally vacuums out all the oil, but it still left my skin soft and smooth to allow the rest of my makeup to just glide on.
For those of you with extremely oily skin on a regular basis, by using this primer in combination with other oil free products such as foundations and powders, you will have a fresh, matte finish all day long..guaranteed! - RLB
*This product was provided courtesy of Becca Cosmetics PR for reviewing purposes.