Rimmel London Stay Matte Primer; found in stores like Target or Walgreens for about $7.
I was new to the world of make-up primers when I received this product. I had no idea what I was missing. This primer really does help my face stay looking and feeling matte for a majority of the day. Being a mom, I don't have a night life, and don't need my make-up to last all day and into the night. This primer minimizes the appearance of pores and and keeps you shine free for 8 hours. I usually wear my make-up for about 10-12 hours a day on my longest days out of the house for nursing classes, and I have no problems with shine or "melting." This primer has created a perfect canvas for my make-up and has kept my oily nose under control.