Elf putty primer is a makeup product designed to create a smooth and even canvas for your makeup application. It is also used to fill in fine lines and wrinkles, making them less noticeable. To use elf putty primer, begin by applying a small amount to your skin using your fingertips or a brush. Gently massage the product into your skin, focusing on areas that need more coverage. Once the primer has been applied, let it sit for a few minutes to allow it to set before applying your foundation or concealer.