This is part of MAC’s Skincare line. I purchased, like many products, after seeing some of my favorite Youtubers using it. It’s a wonderful lightweight moisturizing base for your foundation. It has antioxidants and also caffeine to help calm the skin. It comes in two colors: Radiant Pink (I bought) and Radiant Yellow. It gives the skin a dewy glow but not oily. It does have a little bit of silicone. It’s just enough for your foundation to go on smooth. MAC claims it helps control the oils on your face. I do like this one more for summer for that reason. It claims to help with evening out you skin’s tone. I was not sure this was something that happened. This bottle should last you quite a while. So if you are looking for a nourishing layer to put under your foundation I would recommend this product. One pump and you can do your whole face. It is a little higher in the price range for a primer so proceed with caution if you are more budget conscious.