I bought this product for it's subtle 'dewy skin' effect, to use underneath and on top of my MAC foundation. It's secondary benefits are the moisturising ingredients which work quite well.
The only thing I don't like is this blocks the pores on my nose, but only when it's quite hot and humid outside.
Perfect to use if you don't have a primer. It does create a slight glow to the skin. Its quite moisturising and doesn't make the skin oily or break out thankfully. It does sell from MAC so don't rely on it to be cheap, but defiantly worth it!
Tips: Make sure you cleanse your face before you apply the product!