― Witch Anti-Blemish Skin Clearing Primer Witch Anti-Blemish Skin Clearing Primer I have decided to do a product review on Witch Anti-Blemish skin clearing Primer. I actually won this product in a competition (yes my first ever win of anything!!!) on Twitter a few weeks ago, and the first day it arrived I decided to try it out. What does it do? This Witch primer helps to prepare the skin for foundation, allowing for smooth and even application whilst creating an invisible shield to [...].