20. Favourite eyeshadow primer?
Nars Smudgeproof eyeshadow primer. I've tried them all, it's the best: it lasts all day and it doesn't make blending more difficult, unlike UD Primer Potion does. The formula stays stable, unlike the Too Faced Shadow Insurance one. I go about 8 months with a tube, and I have been using nothing else but this since it first came out, so I'm down a couple of tubes already.