Elf Poreless Putty Primer is a silicone-based primer that helps smooth and even out your skin, creating a smooth surface for your makeup application. It has a putty-like texture that melts into your skin, making it easy to apply and blend. It's designed to minimize the appearance of pores and fine lines, giving your skin a flawless finish. The formula is also oil-free, making it suitable for all skin types, including oily and acne-prone skin. Overall, it's a great primer for those looking to create a smooth canvas for their makeup application.