Is Eyeshadow Primer/Shadow Base necessary ?
I would definitely recommend using an eyeshadow primer, especially if you have oily lids. How do you know if you have oily lids? After you put on eyeshadow, if the color creases (gathers in the crease of your lids) throughout the day than you have oily lids. I use Urban Decay Primer Potion or M.A.C. paint pot in Soft Ochre. My lids are really oily, so neither product completely stops them from creasing but they definitely slow it down!