This primer is incredible. I have really oily eyelids that always seem to crease by the time it comes lunch. I've tried Mac Painterly and Urban Decay Primer potion but nothing matches the Nars primer!!! It's magnificent and I can't see myself using any other eye primer. It lasts me from 7am to 5pm and I just can't say anything bad about this product. It is totally worth the £19, and if you have really oily products I definitely recommend trying this product! Amazing.