essence Hello, Good Stuff! Primer Serum 30ml is a two-in-one product. First, its formula rich in moisturizing properties ensures intense hydration for all skin types. This way, not only do you look healthier, radiant, and fuller, but also the makeup later on will look better on your face. Afterward, its second skill is to work as a face primer. That said, your favorite makeup gets a new base that ensures that your products don't easily go anywhere!