The best eye shadow primer ever!

When it comes to eye shadow,what ever your colour of choise may be,we all want the same thing - to be vibrant and to stay on for a long time without creasing. I have tryed a few eye shadow primers,or eye shadow bases if you want,but for me nothing can compare to Coverderm´s classic ( waterproof concealing foundation)!I know it doesnt say its eye shadow base,and i bought it with intention to use it as a concealer,but it just didint work for me.But one day a run out of my usual eye primer so deacided to give Coverderm a chance.I was amazed,my eye shadow stayed on place wthout smudging or creasing all day long.And i have to say that i was using it all summer and i am in love with it! It comes in a really small 15 ml (0.5 fl.oz) jar but a lil bit goes a long way.Its enough to just slightly dab a finger and touch a product and you can cover whole lid.It is  hypoallergenic and has UVA-UVB protection and SPF 30.And did i said its waterproof  :) On the downside its not cheap (i think i bought it for 20 something euros) but considering how little you need it can last you a really long time,and i will definitely buy it again.What is your favourite eye shadow primer?

Love Mimi