This lovely little product has made a dramatic difference in eyeshadow longevity. The chief ingredient is Clary Sage water, and the added humectants and moisturizers like glycerin and shea butter refresh and hydrate. There's no slip like other (silicone-based) primers, but it does take a minute or so to set.
I even layered it under RMS Beauty's Eye Polishes, which added a bit of time before the inevitable creasing occurred. Nevertheless, this lightweight, travel friendly tube is becoming a fast summer favorite.