People have been going back and forth on which is better.
I have both primers, so I want to share my opinion. The Urban Decay Primer Potion is the primer that EVERYONE has, Im sure you've heard of it more than The shadow insurance. Honestly in my opinion they both work great and they do a great job sooo which one should you buy? In the end I recommend Too Faced Shadow Insurance. Why? because if u really think about it, you'll get more product off of it than the primer potion. Ive seen plenty youtube videos on how to open your urban decay primer potion to get the rest of the product that u cant get with the wand. why go through that?..with the shadow insurance it's a plastic tube in which you can get the last bit of product in it and it's cheaper!
Great huh? Im sure there's people who will disagree with me but to me Too Faced Shadow Insurance wins! hey You'll get your moneys worth