Yes, Elf's poreless face primer is water-based. It's made with a blend of hydrating ingredients that help to smooth and perfect the skin, while also providing a matte finish. The formula is lightweight and non-greasy, making it perfect for all skin types. Elf's poreless face primer is also infused with vitamin C and aloe vera, which help to protect and nourish the skin while providing an even canvas for makeup application. With its water-based formula, Elf's poreless face primer is a must-have for achieving a flawless finish.