A common question we receive here at glo is how to layer your glo products correctly. To be more specific we hear, “Which comes first- serum or moisturizer?” The correct answer is serum first, moisturizer second. That said, it’s important to let your serum absorb completely before applying your moisturizer. Another common question is “Where does my daily SPF fit into the routine?” We recommend applying your SPF on top of your daily moisturizer. Take a peek at this helpful chart and leave any other questions you have about layering in the comments below!