I love to use this when I know I have an extra long day in make-up, or for those nights out when the weather is a bit humid. It's pretty good at blurring my pores, especially if pressed in on areas its needed instead of rubbed in. Though I find the product does not spread as well as other primers from Rimmel. The biggest difference I'v noticed when using the Stay Matte Primer is the life of any foundation I use. It stretches the wear time and you don't see the liquid foundation start to break apart. My skin keeps a velvety appearance. I wouldn't wear it every day as it can be drying. One of my top picks for primers, especially for special occasions, or long days in hot weather.