I use this everytime I apply my makeup! Using this then a NYX Jumbo Eyeshadow Pencil as a color base, my eyeshadow stays put all day. I haven't experienced creasing at all using this method. At only a dollar, what more could you ask for?
I love them as color bases. While some others say they crease, I apply E.L.F's eyeshadow primer, then this as a base and my eyeshadow stays put all day! I have Milk, Black Bean, Bronze, both Purples, and the Mountain Green, I think it's called. They're great.